WKT (sealant)

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WKT is a sealing compound which was developed by Paul Pietzschke, Chemisch-Technische Fabrik, Hamburg, Germany in 1962 specifically to meet the stringent requirements in the yacht and ship building industry. WKT belongs to the silicone group of sealants.

About WKT[edit]

WKT is a highly elastic and extremely non-ageing sealant. WKT is a silicone rubber and one of the first fully synthetic sealants for the commercial marine industry. The active ingredient in WKT sealing compound is polydimethylsiloxane."MSDS WKT Sealing Compound" (PDF). April 20, 1994. Today WKT is used in countless fields of applications such as the construction and building industry, windows and glazing, interior industry, plant engineering and construction, grommet maintenance, manufacturing industry, recreational vehicles (RV) and aircraft industries.


WKT is extremely UV resistant and maintains its high elasticity both in tropical and arctic climates, and it maintains its adhesive force even after years of exposure to all weather conditions and it does not lose its elasticity under constant, greatly varying mechanical stress.


WKT is free of solvents, heavy metals, isocyanates and oximes and is not subject to marking as hazardous goods. WKT in its cured form is physiologically harmless.

Other types of sealants[edit]

See also[edit]

External links[edit]