Koster MS Flex Foil Liquid Applied, Elastic, Crack Bridging Waterproofing Material - W 200

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KOSTER MS-Flex Foil is a single component, liquid applied, elastic, crack bridging waterproofing material based on MS Polymer technology. It is characterized by excellent adhesion to a wide variety of building materials and can be applied on dry or slightly moist substrates. It is liquid applied and therefore seamless, which greatly eases application to complicated architectural details. Due to its UV stability it is suitable for indoor and outdoor use. It is quickly resistant to rain.

KOSTER MS-Flex Foil is solvent free and does not contain isocyanates. The fast curing coating is highly flexible, resistant to occasional foot traffic, aging, hydrolysis, UV-rays, salts, and frost.

Coverage: Approx. 25 - 45 sq ft/gallon.

Unit Sizes
2 x 4 kg tubular bags (W 200 008)
55 lb bucket (W 200 025)

KOSTER American Corporation is a subsidiary of KOSTER Bauchemie AG of Germany.

Founded in 1982 KÖSTER BAUCHEMIE AG specializes in the development and production of high-quality waterproofing products and systems. Today, KÖSTER forms a group of more than 20 companies with worldwide activities in more than 50 countries. Its headquarters are located in Aurich, Germany.

Our R&D facility, production and technical department are all located on the same campus in Virginia Beach, VA. This allows each department to work closely together to ensure each product conforms to the highest standards of quality. 

KOSTER operates two production facilities in Virginia Beach. The liquid facility produces all of our epoxy coatings while the powder facility produces our self-leveling underlayments as well as other cementitious waterproofing products. 

We place tremendous value on producing our products ourselves in order to ensure the highest level of quality control from development to application. We strongly believe in providing our customers with an excellent and safe experience with our products.