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Flexible Cementitious

MasterSeal 540 is a two part, prepacked system, consisting of a liquid polymer as Part A and a premixed powder as Part B. The two parts on mixing yield a brushable, smooth slurry with excellent bond to most substrates. The product is based on selected synthetic resins and cements.

MasterSeal 540 is in compliance with Bureau Veritas Potability test for used in drinking water reservoirs or tanks.
Surface Spread of Flame test: - BS 476:Pt.7:71(passes Class 1)


MasterSeal 540 is designed to be used as an effective waterproofing membrane on a variety of substrates. Applications include:
 Waterproof coatings to the internal faces of
water tanks, sumps, reservoirs, planter boxes etc., before tiling or other surface finishing;
 Treating terraces, balconies, kitchen & toilet floors as a sandwich treatment, to prevent water ingress.
 Treating bridge & flyover decks before wearing
course to protect concrete from rainwater

 Polymer modified - Improved bond strength on a
variety of substrates.
 Permeable to water vapours - Allows surface to
breath, preventing buildup of moisture in
structure, reducing maintenance.
 Flexible - Can withstand moderate movement of
hairline cracks. Bridges cracks up to 0.3mm in
width, reducing maintenance.
 Weather resistant - Suitable for use in exposed
 Brushable consistency - Easily applied by brush
or spray.
 Non-toxic – Can be applied onto surfaces in
contact with drinking water.

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