http://www.gast.co.za World leading provider of multiple products and services in 15 different countries worldwide. http://www.gast.co.za/overview.html Gast provides a complete spectrum of services from design and supply to installation in both the civil and construction industries. http://www.gast.co.za/et11-waterproofing-manufactures.html Waterproofing manufacturers in South Africa have a code of ethics to abide by in order to assure industry regulation and the delivery of industry standard products and services, and we are proud to submit fully to all requirements of the Waterproofing Federation of South Africa.