Description weber AD250 Additive & Primer is a synthetic, water-based dispersion of highly flexible acrylic polymers. It is used with standard adhesives to improve flexibility. It can also be used as a primer. weber AD250 Additive & Primer can be used as a performance-enhancing admixture for weberset plus and weberset rapid plus, when tiling onto: Low-porosity substrates or tiles Wooden floors Green screeds Heated floors weber AD250 Additive & Primer can also be used alone as a primer as a surface treatment for: Priming porous or dusty surfaces prior to tiling Sealing gypsum based substrates prior to the application of a cementitious product Things to consider: This product does not act as a waterproofing system Cannot be mixed with grouts to increase flexibility Technical Data: Usage (approx.): As an additive: 4.5 litres per 20 kg adhesive – As a primer: 0.1 litres/m2 undiluted, depending on porosity of the substrate Application temperature: 5°C to 40°C Relative density: 1.05 Solids content: 33% pH: 7 to 8 Product Datasheet Click here to view this product on the manufacturers website.
