Weber Internal Waterproofing Solutions

When water spoil Interior .... we guard it......

Water is regularly used in the washroom, wet areas, kitchen areas. Though these areas are covered with a protective layer of tiles, water can seep through corners, tile joints and ultimately damage the mother slab. These damages are seen over a period of time and hence this area demands special care and attention for waterproofing treatment on mother slab.

Get a call from our waterproofing experts

We are happy to help you with the right waterproofing solutions

Weber Internal Waterproofing System

weber primer 401

High performance acrylic based waterproofing primer

weber primer 401 is a high-performance acrylic based waterproofing primer with excellent bonding agent properties with the substrate, like gypsum board, cementitious board, new and old concrete. It yields into overall strength properties of a waterproofing coating system.

wp acc

Flexible waterproofing tape for joints and corners & 3-ply waterproofing membrane

webertape stickon is special coated 3-ply tape: high extension in the cross direction and rigid lengthwise, thin, high tenacity.

weber tap-seal is 3-ply flexible waterproofing membrane to be used at the intersection of pipes and boards.

Cementitious Waterproof Coating-Weber Waterseal 321

2k elastomeric waterproofing coat for cementitious substrate

weber waterseal 321 is a two-component acrylic polymer modified, elastomeric cementitious waterproofing coating, which requires adding only clean water at the site. It is easy to apply on the surfaces by stiff brush, roller or trowel to form a flexible waterproof coating.

weberdry moistseal

Easy-to-use waterproofing mortar

weberdry moistseal is an easy to use, single-component waterproofing mortar for application of external walls of bathrooms and toilets and concrete walls.


Whether you are craftsmen, distributors or building specifiers, Weber supports you on a daily basis. Find the answers of our experts to the questions you ask yourself on your sites

Internal Waterproofing Solution

All the loosely held concrete must be removed completely. Areas around pipe penetrations must be treated with weber Tapseal. Corners must be filled with polymer modified mortar or treated with weber stickon tape.

All corners of the floor must be filled with cement sand mixture modified with polymer-like webertec SBR so as to have a curved surface. This ensures water does not accumulate on the edges which are susceptible to leakage.

Alternatively, edges can be reinforced with corner treatment tape - weber Stickon. Apply weberdry ACR Seal on edges with a brush and place weber Stickon firmly so that half of it covers the wall and rest covers the floor. Apply another coat of weberdry ACR Seal over this completely covering weber Stickon and its edge.

Generally, 2-3 coats of 0.5 mm thick waterproofing membrane must be applied for durable waterproofing. The second coat must always be applied perpendicular to the 1st coat.

Primer penetrates into pores of the concrete and enhances adhesion of subsequent coat with base substrates. It also improves coverage.

We recommend scrapping loosely held concrete, wetting the surface with ample quantity of water and apply two liberal coats of weber moistseal. Putty and paint can be applied after 2 days of drying.