The Sika®-1 Pre-Bagged structural waterproofing system has been used to control water ingress on new build, and repair and refurbishment projects worldwide.
Originally invented by Kaspar Winkler, the founder of Sika in 1910, Sika®-1 was a quick setting waterproofing admixture for mortar, which was used to waterproof the Gotthard Tunnel, enabling the Swiss railway company to electrify this important connection between Northern and Southern Europe.
The Sika®-1 Pre-Bagged Waterproofing System consists of watertight renders and screeds produced using Sika®-1 Pre-Batched Mortars. The mortars consist of a blend of special cement and kiln dried graded aggregates with waterproofing admixtures. Packaged in 4 grades, each specifically designed for optimum application performance and durability.