weber.tec 821

Colour:
grey

Storage:
The product can be stored for 12 months in its original unopened packaging, if kept dry and at temperatures between +15 °C and +25 °C.

Fields of application

weber.tec 821 is used as ready-to-use, non-sag, 1-comp. premium hybrid adhesive and sealant for bonding all components of the sealing tape system weber.tec 828 in overlapping areas. Suitable for applications in wet-duty rooms as well as in the interior and exterior areas.
Can be used for tension-equalizing bonding and assemblying of a wide variety of materials. Also used for gluing numerous materials, such as wood, metal, glass, ceramic tiles and natural stones.
It adheres to many, even damp surfaces and is therefore extremely versatile.
For use indoors and outdoors.

Main features

• EMICODE EC 1PLUS: very low emission of volatile substances
• elastic and highly resistant
• optimum adhesion on all substrates
• free of silicone, isocyanate and solvent
• non-corrosive
• quick curing
• colour-fast
• compatible with paint according to DIN 52452
• resistant to weathering and ageing
• low odour
• convenient also on damp substrates

General notes

• All characteristics mentioned in this data sheet are given for a temperature of +23 °C, without a draft and a relative rate of humidity of 50%.
• The curing time is about 2 mm/day at a relative humidity rate of 50% and +23 °C. Temperatures below +20 °C and low relative humidity rates delay the curing process.
• Chemical reactions in combination with components (aldehydic cleaners, preservatives and solvents) in the room air can cause discoloration of the light colours.
• In the case of glazed and unglazed ceramic tiles and glass, a primer can be dispensed with; if in doubt, carry out preliminary tests on trial areas.

Special notes

• Due to their durability, hybrid polymers find applications in many construction fields: bodywork, vehicles, shipbuilding, staircases, metal and equipment, wagon and container.
• Due to all possible influence factors during the application, always carry out a compatibility test on trial areas.