Menu
Menu
Your Cart

EWI-333 Silicone Silicate Top Coat Primer - 20kg

EWI-333 Silicone Silicate Top Coat Primer - 20kg
EWI-333 Silicone Silicate Top Coat Primer - 20kg
Price: £63.91 (£76.69 inc VAT)
  • Product Code: A1-2695
  • Delivery Time: 2 - 3 working days
  • Brand: EWI Pro
  • (Tech. support: 02033974067)
  • Model: 20kg
  • Weight: 20.00kg
Our ratings on 13-02-2026:
Google My Business Reviews
4.8 out of 5
Show other sizes

EWI-333 Silicone Silicate Top Coat Primer - 20kg

Weight: 20kg

EWI-333 Silicone Silicate Primer is a deep penetrating primer. It is specifically designed for the final preparation of surfaces before applying silicone renders, reducing the absorptive capacity of the substrate and creating a strong artificial key for better adhesion. Its formulation includes potassium water glass and water dispersion of silicon resin, which helps strengthen the substrate and limit absorption, ensuring a durable and effective base for subsequent coatings. It is formulated with potassium water glass and water dispersion of silicon resin, making it suitable for preparing substrates before applying silicone and silicone silicate renders. This composition helps strengthen the substrate and create an effective base for subsequent coatings.


CHARACTERISTICS

  • Ease of Application,
  • Can be used on a variety of substrates,
  • Waterproof,
  • Frost-proof,
  • Vapour-permeable,
  • Increases the adhesion of paints and mortars,
  • Facilitates the application of paints and mortars,
  • Usage: approx. 0.2-0.3 kg/m2 (depending on substrate structure and absorbency.

APPLICATION

  • All substrates must be stable, even and clean.
  • Remove all unstable (dull sounding) plaster from the substrate.
  • All uneven surfaces should be levelled out using the EWI-260 Levelling Mortar.
  • Mix the contents thoroughly before use.
  • Do not dilute with water or any other product.
  • Apply using a brush or roller.
  • The primed surface is allowed to dry for 24 hours.
  • Work must not be carried out during rain or snow, in strong winds and in direct sunlight without special protection to limit exposure to weather conditions.
  • Recently rendered coats must be protected against rain, frost and over-rapid drying.

CERTIFICATION

  • European Technical Approval No. ETA-07/0192
EWI-040 Silicone Silicate Render 1mm grain - 25kg Tub - Various Colours
Guide Price
Brand: EWI Pro Model: 25kg
Delivery Time: 2 - 3 working days
EWI-040 Silicone Silicate Render is a very flexible, highly breathable and resistant to mechanical impact and UV rays silicone enhanced render that will form a long lasting, aesthetically-pleasing protective barrier on the external surface of your building. EWI-240 Silicone Silicate Render has excel..
Guide Price: £60.97
£73.16 inc VAT
Brand: EWI Pro Model: 25kg
Delivery Time: 2 - 3 working days
EWI-269 Lightweight Basecoat is a breathable and flexible levelling adhesive that can be used internally or externally on lightweight masonry structures and stonework. It consists of grey Portland cement, hydrated lime and perlite, and has a declared thermal efficiency of 0.47W/mK. This basecoat can..
£12.83
£15.40 inc VAT
Brand: EWI Pro Model: 20kg
Delivery Time: 2 - 3 working days
EWI-301 Water Based Primer is EWI-310 Universal Primer is used to prepare substrate surfaces to create an artificial key before applying adhesives. It reduces absorbency and improves adhesion. EWI-310 consists of water-based acrylic polymer dispersions, refining agents, quartz aggregate, pigments an..
£50.62
£60.74 inc VAT
Brand: EWI Pro Model: 25kg
Delivery Time: 2 - 3 working days
EWI-040 Silicone Silicate Render is a very flexible, highly breathable and resistant to mechanical impact and UV rays silicone enhanced render that will form a long lasting, aesthetically-pleasing protective barrier on the external surface of your building. EWI-240 Silicone Silicate Render has excel..
£60.97
£73.16 inc VAT
Brand: EWI Pro Model: 20kg
Delivery Time: 2 - 3 working days
EWI-333 Silicone Silicate Primer is a deep penetrating primer. It is specifically designed for the final preparation of surfaces before applying silicone renders, reducing the absorptive capacity of the substrate and creating a strong artificial key for better adhesion. Its formulation includes pota..
£63.91
£76.69 inc VAT
Brand: EWI Pro Model: 21kg
Delivery Time: 2 - 3 working days
EWI-330 Mineral Acrylic Primer is a deep-penetrating primer used to prepare substrate surfaces to create an artificial key prior to applying mineral, acrylic and mosaic renders. It is a water-based primer containing acrylic polymers, quartz aggregate, pigments and enhancers and reduces the absorptiv..
£44.50
£53.40 inc VAT
This product is listed in the following categories and systems (click to show).