weber.xerm 848

Colours:
white, silver grey, medium grey, dark grey, grey-beige

Storage:
The product can be stored for at least 12 months in its original unopened packaging, if kept dry and cool (not below +5 °C).

Fields of application

In case of high loads, e.g. due to brine water, aggressive media (acids) or strong mechanical loads, the fixing of tiles and their grouting with a reaction resin product are most recommended.
weber.xerm 848 is a slip-resistant and fine-graded 2-component epoxy resin mortar for fixing and grouting ceramic tiles, mosaic, stoneware quarter bricks, earthenware, split tiles as well as glass mosaic in swimming pools, thermal, medicinal and therapy baths, school and workrooms, bathrooms and showers, wet-duty rooms, balconies and terraces.
Also for use in kitchen worktops, laboratory rooms and tables, canteen and commercial kitchen floors and for the repair of worn-out joints.
Furthermore, for bonding the lightweight multi-use tilebackers weber.sys 834 in case of high mechanical loads.
For use indoors and outdoors.

Main features

• R2 TE: R2: pull-off strength ≥ 2.0 N/mm² after all storage conditions – T: thixotropic, slip ≤ 0.5 mm – E: extended open time ≥ 30 minutes
• RG: reduced water absorption (≤ 0.1 g) and higher abrasion resistance (≤ 250 mm3)
• high chemical resistance
• high mechanical resilience
• very easy to emulsify
• heat- and frost-resistant
• crack-free setting
• long bonding open time
• fulfills the KSW recommendations in swimming pools (Germany)
• also suitable in hydrotherapy pools

General notes

• All characteristics mentioned in this data sheet are based on a temperature of +23 °C without draught and a relative humidity rate of 50%.
• Higher temperatures accelerate, lower temperatures delay the reaction process.
• Comply with the national standards and/or guidelines, for ex. DIN 18157 “Execution of tilings and coverings” and the leaflets of ZDB (Central Association of German Construction Industry); if not issued and if necessary, request technical advice.
• Do not install or grout tiles, slabs or natural stones that have been stored damp, wet, or too cold.
• Mortar residues can settle on porous (also microporous), rough and matt surfaces. If in doubt, carry out a trial test. If necessary, such discolorations can be prevented by pre-wetting the covering.

Special notes

• Limits of use: do not use weber.xerm 848 for fixing or grouting mosaic and absorbent coverings; in these cases use the quick-setting all-bed natural stone mortar weber.xerm 866 F.
• Do not use on mastic asphalt and on heated anhydrite screeds.
• For full information relating to allowed substrates and tile coverings, refer to the Weber chart “Overview Tile Adhesives”.
• Before grouting, all joints must be evenly scraped out and thoroughly cleaned of loose parts, dust and grease.
• Do not add water to the components during mixing and application.
• A large number of slabs and natural stones available on the market does not allow a sufficient assessment of their suitability. If in doubt, a bonding and/or grouting test should be carried out on a trial area.
• Take care when handling the component B (hardener); it is alkaline, skin aggressive and can cause irritation. Observe the safety regulations indicated on the packaging when handling and storing the material.