EWI 24
EWI 24
excellent adhesion
Excellent Adhesion
highly flex
Highly Flexible
Highly Vapour Permeable
Highly Vapour Permeable
highly polymer
Highly Polymer Modified

EWI-24 Base Coat

The ecorend EWI-24 Base Coat comprises a technologically advanced formulation intended only for use in an ecorend EWI system application. A cement-based, polymer modified base coat offering advanced adhesion, waterproofing, and breathability, the EWI-24 can be used on multiple substrates and can be hand or spray applied.
Coverage
Approx. 1.7kg per mm/per m²
Application Temperature
+3˚C to 25˚C
Humidity
Less than 95%
Ready to Finish
2 to 8 hours @ + 3˚C to 25˚C
Water Demand
Approx. 5 to 5.75 litres per 25kg bag
Unit Size
25kg Bag Waterproof Packaging

Advanced Formulation for Superior Performance

The ecorend EWI-24 Base Coat is a high-performance, high-strength, cement-based base coat formulated exclusively for use within an ecorend external wall insulation (EWI) system. Designed to provide an ultra-reliable bonding layer, it offers exceptional adhesion, breathability, and waterproofing properties, ensuring long-term durability and protection.

With a carefully engineered formulation, the EWI-24 Base Coat is ideal for anyone looking for a high-performance solution to create a strong and stable base for render finishes.

Application Across Multiple Substrates

The EWI-24 Base Coat is engineered for exceptional compatibility with a variety of substrates, providing a reliable and durable bonding layer. Whether applied to masonry, concrete, or insulation boards, its flexible formulation allows for strong adhesion, ensuring long-term stability across different surface types.

Technical Features & Benefits

  • Advanced Polymer Modification – Enhances adhesion and flexibility, reducing the risk of cracking.
  • High Compressive Strength – Ensures a robust, impact-resistant surface.
  • Excellent Workability – Smooth application with a pot life of approximately 90 minutes.
  • Waterproofing Protection – Helps resist water penetration while allowing vapour movement.
  • Breathable Formula – Prevents moisture build-up, reducing the risk of damp-related issues.
  • Frost & Weather Resistant – Engineered for UK climate conditions, providing long-lasting durability.
  • Application Versatility – Can be applied with both traditional hand-applied methods and modern spray techniques for increased efficiency on site.
  • Multiple Substrate Compatibility – Bonds effectively to masonry, concrete, insulation boards, and other standard EWI surfaces.
  • Reinforcement Compatibility – Designed to be used with alkali-resistant fibreglass mesh for additional strength and crack resistance.

Efficient Application for Streamlined Installation

With the ability to be hand or spray applied, the EWI-24 Base Coat provides installers with maximum flexibility. The easy-to-mix formulation ensures smooth application and workability, helping to achieve a uniform and consistent layer that enhances the overall system performance.

For professional applicators, the spray application method significantly reduces labour time, making large-scale projects faster and more efficient without compromising quality.

Complete ecorend EWI System

Designed for seamless integration into ecorend’s full EWI system, the EWI-24 Base Coat plays a vital role in enhancing system strength and durability. It provides a solid foundation for the application of ecorend’s decorative and protective render finishes, ensuring a high-quality, long-lasting finish that withstands the elements.

For best results, always follow ecorend’s recommended preparation and application guidelines to ensure maximum performance and longevity.

Technical Details

EWI-24 Base Coat 25kg – Technical Details
Coverage Approx. 1.7kg per mm/per m²
Application Temperature +3˚C to 25˚C
Humidity Less than 95%
Ready to Finish 2 to 8 hours @ + 3˚C to 25˚C
Water Demand Approx. 5 to 5.75 litres per 25kg bag
Unit Size 25kg Bag Waterproof Packaging
Pot Life 1 Hour +
Application Tool Stainless Steel Trowel, 6mm Notched Trowel, Sponge Float
Reaction To Fire Class A1
Dry Bulk Density 1723 kg/m3
Compressive Strength CS IV
Water Absorption W2
Thermal Conductivity (λ10, dry) 0.61 W/mK (BS EN 1745 Table A.12, mean value; P = 50%)
Recyclability 100% Fully Recyclable Packaging