EWI-333 SiSi Render Primer – 21kg
EWI-333 Silicone Silicate (SiSi) Primer is a deep-penetrating primer used to prepare the substrate prior to the application of Silicone Silicate render. It bonds dusty surfaces, regulates absorptive capacity and reduces the required quantity of render – all without compromising breathability. SiSi primer can be pigmented according to match the colour of the render.
- Vapour permeable
- Increases groundwork adhesion
- Facilitates render application