weber.sys 835

Colours:
white

Storage:
The product can be stored for at least 24 months in its original unopened packaging if kept dry and protected from sunlight.

Fields of application

weber.sys 835 is designed for the preparation and reinforcement of critical substrates prior to subsequent tiling and levelling works. The reinforcing fabric is an alkali-resistant, high-strength fiberglass fabric to increase safety against cracking on critical substrates. weber.sys 835 can be used for works with tile adhesives and levelling compounds to increase their stability and flexural rigidity. By improving the dimensional stability of the built-up system, the reinforcing fabric reduces the transfer of cracks and deformations from the substrate to the surface covering. For use on vibration-prone concrete surfaces, screeds, mixed substrates, old substrates, plasters/renders, gypsum plasterboards, gypsum fiberboards, hard foam boards, old tile coverings and wooden substrates.

Main features

• for indoors and outdoors
• increases the stability of the whole construction
• for reinforcement on critical substrates
• also for reinforcement of the de-coupling layer of the 2-comp. reactive waterproofing compound weber.xerm 844
• also for wooden substrates
• minimum installation height
• high tear strength

General notes

• Take over existing separation joints and connection joints in the substrate in the boards and in the top covering at the same place.
• Wooden surfaces (treated timber planks and OSB boards) must be strongly connected with the substrate; if necessary, fasten them with wood screws in interval of max. 40 cm. All joints between the beams must be bonded to each other with appropriate timber glue. Use the bonding primer weber.prim 803 on all wooden substrates.
• If floor acoustic insulation is required, use the foot impact sound insulation and de-coupling boards weber.sys 832 in residential buildings.
• All statements described in our technical data sheet refer to our tests and practical experience.
• These might not be valid for every application; if necessary, carry out preliminary tests.