Superior Mortar Bonding Agent for Enhanced Adhesion

In the dynamic landscape of modern construction, the quest for superior durability, enhanced performance, and sustainable building solutions is ceaseless. Central to achieving these goals is the strategic use of advanced building materials, particularly specialized additives that transform conventional mixes into high-performance systems. Among these, the mortar bonding agent stands out as a critical innovation, fundamentally altering the mechanical and chemical properties of cementitious composites. This comprehensive guide delves into the world of advanced mortar additives, focusing on their transformative impact on construction practices, with a specific emphasis on products like our EIFS BONDING MORTAR ADDITIVE.

The evolution of construction chemistry has led to sophisticated materials capable of addressing complex challenges, from extreme weather conditions to structural longevity. Traditional mortars, while foundational, often fall short in meeting the stringent demands of contemporary architectural designs and performance specifications. This is where advanced bonding agents, including latex bonding agent and cement adhesive additive, play an indispensable role. They are engineered to significantly improve adhesion, flexibility, water resistance, and overall durability of mortars, plasters, and concrete.

Industry Trends and the Imperative for High-Performance Bonding Agents

The global construction industry is currently undergoing significant shifts, driven by several key trends:

• Sustainability and Green Building: Increasing emphasis on environmentally friendly materials and methods that reduce carbon footprint and improve energy efficiency.
• Durability and Lifespan: A growing demand for structures that can withstand harsh environmental conditions, natural disasters, and the test of time, minimizing maintenance and replacement costs.
• Prefabrication and Modular Construction: The rise of off-site construction requiring materials that offer superior bonding and rapid curing properties for efficient assembly.
• Renovation and Restoration: The need for high-performance adhesives and repair mortars that can effectively bond new materials to old substrates, often with varying porosities and compositions.

These trends underscore the critical need for advanced mortar bonding agent solutions. For instance, in Exterior Insulation Finishing Systems (EIFS), the bonding mortar is the backbone, ensuring the insulation boards adhere securely to the substrate, providing thermal efficiency and structural integrity. Similarly, in tiling applications, a high-quality cement adhesive additive ensures long-lasting bond strength, preventing tile pop-offs and cracking, especially in high-traffic or wet areas.

The market for latex bonding agents, a significant sub-segment of mortar additives, is also experiencing robust growth. These polymer dispersions, typically based on styrene-butadiene rubber (SBR) or acrylics, impart exceptional flexibility, adhesion, and water resistance to cementitious mixtures. Their versatility makes them ideal for a wide range of applications, from waterproofing membranes to self-leveling compounds.

EIFS BONDING MORTAR ADDITIVE: Technical Prowess and Unmatched Performance

Our flagship product, EIFS BONDING MORTAR ADDITIVE, is a testament to cutting-edge chemical engineering, designed to elevate the performance of cement-based mortars to unprecedented levels. It is a specialized polymer additive formulated to significantly enhance the adhesive strength, flexibility, water resistance, and workability of EIFS base coats and adhesives. This additive transforms ordinary mortar into a high-performance system capable of enduring the most demanding conditions.

Key Technical Parameters and Their Significance

Understanding the technical specifications of EIFS BONDING MORTAR ADDITIVE is crucial to appreciating its superior performance:

These parameters are not just numbers; they represent the scientific foundation of the additive's ability to deliver tangible benefits in real-world applications. For example, a high initial bond strength ensures that insulation boards are securely anchored, reducing the risk of detachment during installation and throughout the lifespan of the EIFS. The significant reduction in water absorption directly translates to enhanced freeze-thaw stability, making the system resilient in colder climates, and preventing moisture-related issues like mold and mildew growth.

The Manufacturing Process of a Mortar Bonding Agent

The creation of a high-quality mortar bonding agent, particularly a polymer-based additive like EIFS BONDING MORTAR ADDITIVE, is a sophisticated process involving precise chemical engineering and rigorous quality control. Unlike traditional manufacturing processes such as casting or forging (which are applicable to metal components), the production of chemical additives focuses on polymerization, dispersion, blending, and purification.

Process Flow Explained:

The general manufacturing process can be outlined as follows:

1. Raw Material Sourcing & Preparation: This initial stage involves the procurement of high-purity monomers (e.g., styrene, acrylic esters), initiators, emulsifiers, and stabilizers from trusted suppliers. These raw materials are stored under specific conditions to maintain their quality and reactivity.
2. Polymerization Reaction: The core of the process. Monomers are dispersed in water (for emulsion polymers) along with emulsifiers and initiators in a controlled reactor. The reaction vessel is typically jacketed to control temperature, which is critical for dictating polymer chain length, molecular weight distribution, and ultimately, the final properties of the polymer. This process, often emulsion polymerization, creates a stable dispersion of polymer particles in water.
3. Cooling & pH Adjustment: After polymerization is complete, the reaction mixture is carefully cooled. The pH of the polymer dispersion may be adjusted to ensure long-term stability and compatibility with cementitious systems.
4. Filtration & Purification: The crude polymer dispersion is then filtered to remove any coagulated particles or impurities, ensuring a clean, homogeneous product. This step is vital for preventing defects in the final mortar matrix.
5. Quality Control & Testing: Throughout and after the manufacturing process, stringent quality control measures are implemented. Samples are taken at various stages and subjected to a battery of tests, including solids content, pH, viscosity, particle size distribution, minimum film-forming temperature (MFFT), and performance tests like bond strength (e.g., according to ASTM C1185 for EIFS applications), water absorption, and freeze-thaw stability. These tests ensure the product meets or exceeds international standards such as ISO 9001 for quality management and relevant ASTM or EN norms.
6. Blending & Additivation (Optional but Common): Depending on the specific product formulation, other performance-enhancing additives (e.g., defoamers, biocides, rheology modifiers) may be incorporated at this stage to fine-tune properties such as workability, open time, or shelf life.
7. Packaging: The finished mortar bonding agent is then packaged into appropriate container111s (e.g., drums, IBC tanks) under sterile conditions to prevent contamination and ensure product integrity during storage and transportation.

Image: Illustrative representation of quality control during the production of a high-performance mortar bonding agent.

Manufacturing Craftsmanship & Inspection Standards: Our manufacturing processes for EIFS BONDING MORTAR ADDITIVE are characterized by advanced reactor technology, precise temperature and pressure control, and automated dosing systems, minimizing human error and ensuring batch-to-batch consistency. Every batch undergoes comprehensive testing against internal specifications and external industry standards, including but not limited to ISO (International Organization for Standardization) for quality management (e.g., ISO 9001) and environmental management (e.g., ISO 14001). We also adhere to relevant ASTM (American Society for Testing and Materials) and EN (European Norm) standards for product performance, such as those governing bond strength, water resistance, and freeze-thaw cycles for EIFS applications. This meticulous approach ensures that every gallon or kilogram of our product delivers reliable, predictable, and superior performance.

Use Lifespan and Applicable Industries: The inherent properties imparted by our mortar bonding agent significantly extend the service life of the entire construction assembly. For EIFS, it ensures that the insulation and finish layers remain securely bonded for decades, resisting delamination due to thermal expansion, contraction, or moisture ingress. This longevity is crucial for sectors like residential and commercial building construction, where long-term structural integrity and energy efficiency are paramount. Beyond EIFS, this additive's principles apply broadly to the building materials sector, including:

• General Construction: For high-performance plasters, renders, and screeds.
• Infrastructure Projects: Where enhanced durability and resistance to environmental degradation are critical, such as bridge decks, tunnels, and public buildings.
• Renovation & Restoration: Providing superior bonding for repair mortars and overlays on existing concrete and masonry substrates.
• Tile & Flooring Industry: As a cement adhesive additive for high-strength, flexible tile adhesives and self-leveling compounds.
• Waterproofing & Damp-Proofing: Creating highly impermeable mortar layers for basements, bathrooms, and wet areas, offering excellent anti-corrosion protection to embedded rebar by preventing moisture and chloride ingress.

In these typical application scenarios, the product's advantages are evident: for EIFS, it enhances thermal efficiency and structural integrity, contributing to energy saving by maintaining an intact insulation envelope. For concrete repair, it ensures a strong, durable, and seamless repair, preventing future spalling and extending the lifespan of the structure. Its superior water resistance directly translates to robust anti-corrosion properties for any steel elements within the mortar, making it invaluable for any application where moisture might otherwise lead to rebar degradation.

Application Scenarios of EIFS BONDING MORTAR ADDITIVE

The versatility of EIFS BONDING MORTAR ADDITIVE extends its utility across a broad spectrum of construction applications, beyond just EIFS. Its core function of enhancing cementitious matrices makes it invaluable in situations demanding superior adhesion, flexibility, and durability.

Primary Application: Exterior Insulation Finishing Systems (EIFS)

EIFS remains the primary and most impactful application. In EIFS, the additive is incorporated into the base coat (which serves as both the adhesive for the insulation board and the base for the reinforcing mesh) and sometimes into the finish coat. The benefits are profound:

• Enhanced Adhesion to Substrate and Insulation: Crucial for the structural integrity of the EIFS, ensuring the insulation boards (EPS, XPS, mineral wool) remain firmly attached to various substrates like concrete, masonry, or sheathing.
• Improved Crack Resistance: The flexibility imparted by the polymer additive helps the base coat accommodate thermal expansion and contraction, as well as minor structural movements, preventing unsightly and damaging cracks.
• Superior Water Resistance: Creates a more impermeable layer, protecting the insulation and the building envelope from moisture ingress, which is vital for preventing mold, mildew, and structural damage.
• Workability and Ease of Application: Improves the trowelability and open time of the mortar, allowing installers more time to achieve a smooth, consistent finish, especially critical for large areas.
• Freeze-Thaw Stability: Enhances the mortar's ability to withstand repeated cycles of freezing and thawing, preventing degradation in cold climates.

Other Key Applications:

• Tile Adhesives (as a cement adhesive additive): When mixed into tile mortars, particularly for large format tiles, porcelain tiles, or tiles in wet areas (bathrooms, kitchens, swimming pools), the additive drastically improves bond strength and flexibility. This minimizes the risk of tile delamination, cracking, or hollow spots, even on challenging substrates. It allows the tile assembly to better absorb differential movement between the substrate and the tile.
• Concrete Repair Mortars: For patching, resurfacing, or filling cracks in concrete structures, adding this bonding agent enhances the adhesion of the repair mortar to the existing concrete, reducing shrinkage and improving the durability of the repair. This is vital for maintaining the structural integrity of concrete elements in civil engineering and infrastructure projects.
• Self-Leveling Underlayments (SLU): In SLUs, the additive promotes better flow, reduces segregation, and ensures a strong, uniform bond to the subfloor. This results in a smoother, more durable surface for subsequent flooring installations (e.g., LVT, hardwood).
• Stucco and Render Systems: Similar to EIFS, for traditional stucco or modern renders, the additive improves adhesion to various wall substrates, increases resistance to cracking, and enhances weatherability, providing a long-lasting protective and decorative finish.
• Masonry Mortars: While less common for everyday bricklaying, in specialized masonry applications requiring higher performance, such as for architectural features or in seismic zones, the additive can enhance bond strength and overall durability.
• Waterproofing Slurries: When incorporated into cementitious waterproofing slurries, it creates a flexible, highly impermeable barrier essential for basements, foundations, and wet rooms, protecting against water ingress and associated damage.

In each of these diverse scenarios, the core benefit of the mortar bonding agent remains consistent: it fundamentally upgrades the performance of the cementitious matrix, leading to more resilient, durable, and long-lasting construction outcomes. This contributes significantly to the longevity and sustainability of structures, reducing lifecycle costs and environmental impact.

Technical Advantages: Deep Dive into Principles

Our commitment to excellence in mortar bonding agent technology is underpinned by principles that align perfectly with Google's (Expertise, Experience, Authoritativeness, Trustworthiness) guidelines.

1. Expertise: Unpacking the Science Behind Performance

Our EIFS BONDING MORTAR ADDITIVE is a carefully engineered polymer dispersion designed to interact with cement hydration products at a molecular level. When added to water and cement, the polymer particles coalesce and form a continuous, flexible film throughout the cement matrix as the water evaporates and cement hydrates. This polymer film serves multiple critical functions:

• Enhanced Adhesion: The polymer film adheres strongly to both the aggregate particles within the mortar and the substrate itself. This creates a tenacious bond, significantly improving both tensile and shear bond strengths. Unlike mechanical interlocking alone, this chemical adhesion provides a more robust and uniform bond, reducing the risk of delamination even under stress. The polymer bridges micro-cracks and imperfections, maximizing contact area.
• Flexibility and Crack Resistance: The inherent flexibility of the polymer network allows the cured mortar to accommodate minor substrate movements, thermal expansion/contraction cycles, and external stresses without cracking. This is particularly crucial for EIFS where large temperature fluctuations can cause significant movement between insulation boards and the substrate. This also improves the mortar’s strain capacity.
• Reduced Water Permeability and Improved Water Resistance: The polymer film fills the pores within the cement matrix, effectively reducing capillary absorption and the overall permeability of the mortar. This makes the mortar highly resistant to water ingress, which is vital for preventing freeze-thaw damage, efflorescence, and corrosion of reinforcing steel in reinforced concrete applications. The hydrophobic nature of certain polymers further enhances this resistance.
• Improved Durability and Chemical Resistance: By forming a protective barrier and reducing porosity, the additive enhances the mortar's resistance to aggressive chemicals, chlorides, and carbonation. This translates into a longer service life for the building envelope and reduced maintenance costs.
• Optimized Workability and Open Time: The rheological properties of the polymer dispersion improve the fresh mortar's consistency, making it smoother to apply and easier to trowel. It also extends the "open time" – the period during which the mortar remains workable and can form a strong bond, providing more flexibility for installers on site. This is due to the water retention properties of the polymer.

Understanding these mechanisms illustrates our deep expertise in material science and construction chemistry. Our R&D team continuously innovates to fine-tune these properties for specific application demands.

2. Experience: Real-World Application and Client Success

Our EIFS BONDING MORTAR ADDITIVE has been extensively tested and successfully deployed in numerous projects worldwide, accumulating invaluable real-world experience. Our clients consistently report significant improvements in project efficiency and long-term performance. For instance:

• Large-Scale Residential Complexes: In a multi-year project involving several hundred thousand square meters of EIFS installation in a region with extreme temperature swings, our additive ensured flawless adhesion and crack-free facades, even after rigorous seasonal changes. Client feedback highlighted reduced callbacks and improved aesthetic longevity.
• High-Rise Commercial Buildings: For a challenging high-rise building requiring robust wind-load resistance and superior insulation, the enhanced bond strength provided by our additive was critical for securing heavy insulation panels, exceeding structural requirements.
• Historic Building Restorations: In several sensitive restoration projects, the flexibility and superior adhesion of our product allowed for seamless integration of new materials with existing, often uneven, substrates, preserving historical aesthetics while upgrading performance.
• Industrial Flooring Upgrades: A major manufacturing facility utilized our cement adhesive additive in their self-leveling floor screed, resulting in a perfectly smooth, highly durable surface that withstood heavy machinery traffic and chemical spills for years, significantly extending the floor’s lifespan compared to previous solutions.

These experiences are not just anecdotes; they are case studies demonstrating the tangible value and reliability of our product in diverse, demanding environments. Our technical support team also collaborates closely with clients on-site, providing guidance and troubleshooting to ensure optimal product performance and successful project outcomes.

3. Authoritativeness: Certifications, Partnerships, and Industry Standing

Our position as a leading supplier of mortar bonding agent solutions is solidified by our adherence to international standards and strategic industry collaborations:

• ISO Certifications: We are proud to hold ISO 9001:2015 certification for Quality Management Systems, ensuring that our manufacturing processes, product development, and customer service consistently meet the highest international standards. Furthermore, our commitment to environmental responsibility is reflected in our ISO 14001:2015 certification for Environmental Management Systems.
• Compliance with Industry Standards: Our EIFS BONDING MORTAR ADDITIVE is formulated to meet or exceed relevant performance criteria set by organizations like ASTM International (e.g., ASTM C1185 for standard performance of EIFS base coats, ASTM C109 for compressive strength, ASTM C642 for water absorption) and European Norms (EN), demonstrating its suitability for diverse global markets.
• Strategic Partnerships: We collaborate with leading research institutions, construction material manufacturers, and industry associations to stay at the forefront of innovation and contribute to the advancement of building material science. These partnerships enable us to continuously refine our products and address emerging industry needs.
• Years of Service and Reputation: With extensive years of experience in the specialty chemical industry, JZ Chemical has built a reputation for reliability, quality, and innovation. Our long-standing relationships with global clients are a testament to our consistent performance and trusted expertise.

These credentials underscore our commitment to delivering not just products, but solutions backed by rigorous testing, quality assurance, and industry recognition.

4. Trustworthiness: Transparency, Support, and Guarantees

Building and maintaining client trust is paramount. We achieve this through complete transparency and robust support systems:

• Comprehensive Technical Data Sheets (TDS) and Safety Data Sheets (SDS): We provide detailed and accurate information on product specifications, handling instructions, and safety precautions, ensuring users have all necessary data for safe and effective application.
• Dedicated Customer Support: Our team of technical experts is readily available to provide pre-sales consultation, on-site technical assistance, and post-sales support. From dosage recommendations to troubleshooting, we ensure our clients receive timely and expert advice.
• Transparent Delivery Cycles: We maintain efficient supply chain logistics to ensure timely delivery of our products. Our standard delivery cycle typically ranges from 7-14 business days for domestic orders and 21-45 days for international shipments, depending on destination and volume. Expedited options are available upon request.
• Quality Assurance and Warranty: We stand behind the quality of our EIFS BONDING MORTAR ADDITIVE. Our products are manufactured under strict quality control protocols. We offer a standard warranty against manufacturing defects, guaranteeing product performance when used in accordance with our recommendations and industry best practices. Specific warranty terms are provided upon request.
• Responsive FAQ Section: To address common queries promptly, we maintain an extensive FAQ section and encourage direct communication for more complex issues. (See FAQ section below).

Our commitment to these principles ensures that choosing EIFS BONDING MORTAR ADDITIVE is not just a product purchase, but an investment in a trusted partnership that guarantees performance, reliability, and peace of mind.

Customized Solutions and Collaborative Development

Recognizing that every construction project presents unique challenges, we offer tailored solutions to meet specific performance requirements. While our EIFS BONDING MORTAR ADDITIVE provides a robust foundation, we understand that variations in local climates, substrate types, and aesthetic demands may necessitate customized formulations. Our R&D capabilities allow us to adjust the chemical composition and physical properties of our mortar bonding agents to:

• Optimize for Extreme Climates: Develop formulations that excel in sub-zero temperatures (e.g., lower MFFT) or extremely hot and humid conditions (e.g., extended open time, improved anti-sag properties).
• Enhance Adhesion to Challenging Substrates: Create bespoke additives for bonding to specific, difficult surfaces such as existing glazed tiles, old painted concrete, or certain types of insulation materials.
• Achieve Specific Mechanical Properties: Fine-tune the additive to impart precise levels of flexibility, compressive strength, or abrasion resistance, depending on the application (e.g., highly flexible for crack bridging, or harder for high-traffic flooring).
• Address Rheological Needs: Modify the additive to influence the mortar's consistency for specific application methods, such as spray application for large surfaces or thicker troweling for uneven substrates.

This collaborative approach, where we work closely with clients to understand their precise needs and develop bespoke cement adhesive additive solutions, underscores our commitment to innovation and client success. Our experienced chemists and engineers utilize state-of-the-art laboratory equipment to develop, test, and validate these custom formulations, ensuring they deliver predictable and superior performance in the intended application.

Professional FAQ for EIFS BONDING MORTAR ADDITIVE

Here are answers to some frequently asked questions regarding our EIFS BONDING MORTAR ADDITIVE and mortar bonding agents in general, providing further insights into their technical aspects and usage.

1. What is the primary material composition of EIFS BONDING MORTAR ADDITIVE?
   Our EIFS BONDING MORTAR ADDITIVE is primarily a styrene-acrylic copolymer dispersion. This chemical composition provides an optimal balance of flexibility, adhesion strength, and durability required for high-performance cementitious systems. The styrene component imparts hardness and water resistance, while the acrylic component contributes to UV stability and flexibility.
2. What is the recommended dosage for optimal performance, and how is it measured?
   The recommended dosage typically ranges from 5% to 10% by weight of the cement content in the mortar mix. For example, if you are using 50 kg of cement, you would add 2.5 kg to 5 kg of the additive. The exact optimal dosage may vary based on specific application requirements, desired performance characteristics (e.g., higher flexibility might require a slightly higher dosage), and the type of cement and aggregates used. It is measured precisely by weight using appropriate scales.
3. How does this additive improve the bond strength of mortar?
   The polymer particles in the additive form a continuous, cohesive film throughout the mortar matrix as it cures. This film adheres strongly to both the substrate and the cement particles within the mortar, creating a robust, tenacious bond. The polymer also bridges micro-cracks and fills microscopic pores, increasing the contact area and improving the overall mechanical and chemical adhesion, far surpassing what can be achieved with conventional mortars.
4. Is EIFS BONDING MORTAR ADDITIVE compatible with all types of cement?
   Yes, our additive is specifically engineered to be compatible with most common types of Portland cement (e.g., CEM I, CEM II) and various blended cements. Its pH is optimized to ensure stability in alkaline environments. However, it's always advisable to conduct a small-scale compatibility test, especially with unusual or specialized cement types or admixtures, to ensure optimal performance.
5. What are the typical storage conditions and shelf life for the product?
   EIFS BONDING MORTAR ADDITIVE should be stored in its original, unopened container111s in a cool, dry place, protected from direct sunlight and frost. The ideal storage temperature range is typically between 5°C and 35°C (41°F - 95°F). Under these conditions, the product has a typical shelf life of 12 months from the date of manufacture. Freezing must be avoided as it can irreversibly damage the polymer dispersion.
6. Does the additive affect the workability or setting time of the mortar?
   Yes, the additive significantly improves the workability and trowelability of the fresh mortar, making it smoother and easier to apply. It also typically extends the open time, which is the duration during which the mortar remains plastic and capable of forming a strong bond. This allows for more comfortable and efficient application, especially in warmer climates or for larger areas. While it may slightly extend the initial setting time, it does not negatively impact the final cure or strength development.
7. Are there any specific safety precautions to observe during handling and mixing?
   As with all chemical products, standard industrial safety precautions should be observed. Always wear appropriate personal protective equipment (PPE), including gloves, eye protection, and suitable clothing. Ensure adequate ventilation in the work area. Avoid direct contact with skin and eyes. In case of contact, rinse thoroughly with water. Refer to the product's Safety Data Sheet (SDS) for comprehensive safety information before handling.

Conclusion: The Future of Construction with Advanced Bonding Agents

The journey through the world of mortar bonding agents, from industry trends to specific product functionalities like our EIFS BONDING MORTAR ADDITIVE, underscores a fundamental truth: the future of construction lies in intelligent material science. These advanced additives are not merely chemical compounds; they are catalysts for change, enabling the creation of structures that are more durable, sustainable, energy-efficient, and resilient in the face of environmental challenges.

The imperative to build better, faster, and more responsibly will only grow. High-performance additives, including latex bonding agents and specialized cement adhesive additives, are at the forefront of this evolution. They empower architects, engineers, and contractors to push the boundaries of design and performance, ensuring that today's constructions stand strong for generations to come. By enhancing fundamental properties such as adhesion, flexibility, and water resistance, they contribute directly to reduced maintenance costs, extended service life, and improved environmental footprints of buildings.

Our commitment at JZ Chemical is to continue innovating, providing products like EIFS BONDING MORTAR ADDITIVE that not only meet but exceed the ever-increasing demands of the global construction industry. Through rigorous research, stringent quality control, and a deep understanding of application needs, we strive to be your trusted partner in building the future, one stronger, more resilient bond at a time.

References and Further Reading:

• ACI 503R-93: "Guide for the Use of Adhesives in Concrete." American Concrete Institute. While older, it provides foundational insights into adhesive principles in concrete applications.

  https://www.concrete.org/store/productdetail.aspx?ItemID=503R93 (Note: Access to full content may require purchase/membership)

• Journal of Building Materials and Structures: "Influence of Polymer Type on the Properties of Cement Mortars." Provides academic insights into how different polymers affect mortar performance.

  https://www.sciencedirect.com/journal/journal-of-building-materials-and-structures (Search for relevant articles on polymer modified mortars)

• Construction & Building Materials Journal: Various articles on "Polymer-Modified Mortars in Construction." An excellent resource for research papers on the topic.

  https://www.journals.elsevier.com/construction-and-building-materials (Browse for specific research on bonding agents)

• EIFS Industry Members Association (EIMA): Provides industry best practices, technical bulletins, and standards for Exterior Insulation Finishing Systems, highlighting the importance of bonding agents.

  https://eima.com/

• ASTM International Standards: Specific standards such as ASTM C1185 "Standard Test Methods for Determining the Properties of Joints and Seams of Exterior Insulation and Finish Systems (EIFS) and EIFS Components."

  https://www.astm.org/c1185-15.html