The SFP15 Sil-Flex Primer 20kg is a ready-to-use, high-performance silicone render primer designed to provide a reliable foundation for modern thin coat render systems, especially when used with SF15 Sil-Flex Thin Coat Render. Developed with advanced silicone and polymer modifiers, SFP15 is engineered to control substrate suction, improve adhesion and prevent uneven absorption a critical step in achieving a long-lasting, uniform render finish.
🎨 In-Store Tinting Available Ready Within Minutes
SFP15 Sil‑Flex Primer can be tinted in-store to the full Ecorend colour range, allowing you to match the primer to your chosen render colour. Your tinted primer can be ready within minutes, reducing delays and ensuring colour consistency between basecoat and final render.
Key Features
- High adhesion primer: Formulated to enhance bonding between substrate and render coat, helping to avoid delamination or peeling.
- Suction control: Regulates natural substrate absorbency to prevent variations that can lead to patchiness or weak render adhesion.
- Breathable silicone technology: Allows moisture vapour to escape from the substrate while providing a waterproof base for render.
- Ready to use: No site mixing required apply straight from the bucket with brush, roller or spray.
- Wide surface compatibility: Suitable for basecoats, lightweight block, concrete, render carrier board and other common substrates when preparing all market-standard thin coat renders.
- Excellent coverage: Typically covers approx. 80m per 25kg bucket, depending on surface texture and porosity.
Applications
- SFP15 Sil-Flex Primer is designed for use prior to the application of SF15 Sil-Flex Thin Coat Render and other compatible silicone thin coat renders. Its role is to prepare the base coat or substrate by:
- Balancing surface suction for even render curing
- Creating a key for improved render adhesion
- Helping prevent substrate grin through where the base shows through the render due to uneven absorption
As part of a professional render system, SFP15 Sil-Flex Primer ensures that subsequent render coatings adhere correctly and perform consistently over time. It is suitable for use on prepared basecoat surfaces and substrates with variable porosity, saving time on site and helping deliver a quality finish.