Silicone Render Scratched (EWI-075) – 25KG

EWI-075 Silicone Render Scratched is one of our most popular Silicone Render products. This polymer-modified, ready-to-use render is normally applied externally to produce a decorative scratched finish on buildings, as opposed to the smoother finish from our standard silicone render. The render is suitable for use on brick, concrete, render carrier boards, traditional plasters, gypsum substrates, and on external wall insulation systems.

EWI Pro Silicone Render is highly breathable. This makes it ideal for application on external wall insulation systems where breathable insulants have been used. For example, Mineral Wool or Wood Fibre insulation.

The Render is also flexible, meaning you can apply it as part of a render-only system (i.e. no insulation). Unlike thicker sand and cement or monocouche renders, our Silicone Render provides a robust, long-lasting decorative finish that is unlikely to crack over time.

EWI-075 Silicone Render Scratched is available in thousands of different colours (e.g. RAL or NCS colours). If the colour you are looking for is not displayed above, please call us on 0203 0340022.

Please note: We do not accept returns on tinted products because our tinted renders are made-to-order. Renders that have not been tinted can be returned as per our normal T&Cs.

On receipt of your tinted render, please ensure the colour is as expected before application. We recommend buying one of our render samples before purchasing to ensure you are 100% happy with your chosen colour.

Colours from different batches may vary slightly. To avoid an uneven finish, mix tubs before application.

Application

EWI Pro Silicone Render Scratched is a ready-to-use render. This means that no water is needed and you can use it straight out of the bucket. However, we recommend mixing the render before use to ensure an even distribution of the colour pigments. Always check that the colour of the render matches your order before application.

To apply EWI-075 Silicone Render Scratched , use a trowel for initial application onto the substrate, then a plastic float to create the desired texture. Remember that this is a thin-coat silicone render system, so the thickness of the render should match the selected grain size of the render.

The Silicone Render is not applied directly on to a substrate (e.g. brick) – instead, it must sit on a EWI Pro Basecoat layer (e.g. EWI Pro Premium Basecoat EWI-225) with embedded mesh.

Our Silicone Render Scratched comes in a 25kg bucket and is ready for immediate application. However, before application, we recommend that you mix the bucket with a paddle mix. This ensures that colour pigments are evenly distributed.

You can then apply a very thin layer of Silicone Render to the basecoat. You should ensure the grain size of the render matches the thickness of the render layer (3mm thick). The total thickness of the basecoat and render should be approximately 8mm as the basecoat layer is around 4-7mm (depending on the selected basecoat).

Application Specifics

When installing EWI Pro Silicone thin coat Render on a building, it is important to ensure there are enough applicators on-site to be able to apply the render to one entire elevation. This step is important because the render can go off very quickly (especially during summer months). To achieve a consistent finish, you can rub up the render quickly. Likewise, if you try and render just a small area of one elevation, then when you try to finish this elevation there will be scarring where the render sections meet.

• Intended for application onto an EWI Pro- specified basecoats
• Substrate primers: EWI Pro – Water Based Primer
• Basecoat primers: EWI Pro – Top Coat Primer 
• Application and setting temperature (air, substrate, materials): from +5°C to +25°C
• Grain size distribution: 3 mm

Storage

EWI Pro Silicone Render Scratched comes ready to use in a 25kg plastic tub. Store in a cool, dry place away from direct sunlight and mix regularly. EWI Pro Silicone Render should be used within 1 year of the production date (as printed on the bucket).

Coverage Rate

• 3.7 kg/m²

Frequently Asked Questions

1.       What colours can I choose from for Silicone Render Scratched?

You can choose from any of our standard colours. We can also tint Silicone Render Scratched to any RAL, NCS, or Pantone colours resulting in thousands of colour choices.

2.       What grain sizes can you choose from?

EWI-075 Scratched is only available in a grain size of 3 mm

3.       Are all your Silicone Renders breathable?

Yes, all our Silicone Renders are highly breathable. This makes it ideal for application on external wall insulation systems where breathable insulants have been used. For example, Mineral Wool or Wood Fibre insulation.

4.       Is Silicone Render Scratched ready to use?

Yes, Silicone Render buckets are ready for immediate application; however, we recommend that you mix the bucket with a paddle mix as this ensures that colour pigments are evenly distributed.

5.       Can I paint over Silicone Render Scratched?

You can paint over all our Silicone Renders using either Silicone Paint or Premium Bio Paint.