Industrial coatings, Plasterkey, tile adhesives, waterproofers & primers. A.Shak is focused firmly on its core business: manufacturing and supplying building industry chemicals. More of a partner than a supplier, A. Shak aims to continually improve and grow, for its own benefit and for that of the entire industry. Established in 1958, A.Shak started off selling shutter release oil to the construction industry. With time the company developed numerous new products and entered the retail sector approximately 30 years ago, supplying Plasterkey to the hardware industry. In 1999 Colin McCrorie and Cindy Engels acquired the company, and immediately set about taking this highly successful brand to even greater heights.