KÖSTER MS-Flexfolie

Very easy to apply, one component, fast curing, highly elastic, UV esistant waterproofing with very good adhesion to numerous substrates

KÖSTER MS-Flexfolie is a single component, liquid applied, elastic, crack bridging waterproofing material based on MS Polymer ztechnology. 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. KÖSTER MS-Flexfolie 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.
KÖSTER MS-Flexfolie is a waterproofing material for the positive side waterproofing, concrete slabs, on flat roofs, on terraces or balconies, in wet and damp rooms, and similar applications. Due to its excellent adhesion to most substrates (including masonry, concrete, screed, PVC, FRP, Plastics, and metal) and high elasticity it is an excellent repair material. The general accepted principles of construction technology and the applicable construction standards must be adhered to.



approx. 1,5 – 2,5 kg/m2.


2 x 4 kg or 25 kg bucket


from 5°C until 25°C