Acrylic elastomeric coating is a high-performance, water-based protective coating primarily used for roofing, walls, and exterior surfaces. It combines the flexibility of elastomers with the durability of acrylic polymers. Here's a detailed breakdown:
🔍 What is Acrylic Elastomeric Coating?
Acrylic elastomeric coating is a flexible, rubber-like coating formulated with 100% acrylic polymers. It’s designed to stretch and return to its original shape without cracking — ideal for surfaces that expand and contract due to temperature changes or structural movement.
🧪 Key Properties
Property Description
Elasticity Can stretch up to 300–600% and return to shape.
Durability Long-lasting — 10 to 20 years depending on thickness and exposure.
UV Resistance Excellent resistance to UV rays, prevents chalking and fading.
Waterproofing Forms a seamless, waterproof membrane when applied properly.
Breathability Allows moisture vapor to escape while preventing water penetration.
Adhesion Strong adhesion to a variety of substrates like concrete, metal, stucco, and more.
🛠️ Applications
Area Use
Roofs Flat or low-slope roofs to prevent leaks and improve energy efficiency.
Walls Especially useful on stucco, masonry, and concrete surfaces.
Bridges/Infrastructure Protection from weathering, cracking, and corrosion.
Industrial Buildings UV and chemical resistance for demanding environments.
🎨 Types
High-Build Elastomeric Coatings – Thicker, designed for roof applications.
Textured Elastomeric Coatings – For walls, improves crack bridging and aesthetic appeal.
Cool Roof Coatings – White or reflective formulations to reduce heat absorption.
🧰 Application Process
Surface Preparation: Clean and repair cracks; power washing may be needed.
Priming (if required): Some porous or chalky surfaces may need a primer.
Application: Typically sprayed or rolled in 2 or more coats.
Curing: Needs 24–48 hours depending on temperature and humidity.
⚖️ Advantages
Energy savings via reflectivity (cool roofs)
Extends lifespan of underlying materials
Eco-friendly: water-based and low VOC (Volatile Organic Compounds)
Crack-bridging ability
Easy maintenance and recoatability
⚠️ Limitations
Should not be applied in cold or wet weather
Not suitable for high foot-traffic areas
Requires proper substrate preparation for best results
🔧 Common Brands
Sherwin-Williams™
Henry® Company
GAF®
Tremco®
Sto® (especially for wall coatings)
Acrylic Elastomeric Coating Is A High-performance, Flexible, And Durable Protective Coating Widely Used In Construction And Industrial Applications—especially For Roofing, Walls, And Other Exterior Surfaces. Here's A Detailed Breakdown: 🔍 What Is Acrylic Elastomeric Coating?Acrylic Elastomeric Coating Is A Water-based Or Solvent-based Coating Made From 100% Acrylic Polymers. It Forms A Rubber-like, Seamless Membrane That Stretches And Recovers As The Surface Expands Or Contra Continue