Saint-Gobain Weber

Saint-Gobain Weber is a manufacturer of construction products for waterproofing, tiling, floors and façades. The product names follow a fixed scheme: after the prefix weber. comes the product family – prim for primers, tec for waterproofing and building protection, xerm for tiling, floor for the floor. We stock the part of the range that is needed for waterproofing and coating: reactive waterproofing for components in contact with the ground, composite waterproofing with tile adhesive in one product, liquid vapour barrier and epoxy resin floor coating.

The dot in the name organises the whole range

Once you know what the four syllables stand for, you can find your way around the Weber range without a catalogue. The families correspond to the layers on the building – from preparing the substrate to the finished usable surface.

This order has a practical benefit beyond searching: products of one family are matched to one another. Primer, waterproofing and adhesive from the same system are compatible, and the drying and waiting times fit together. Anyone who lays layers from different manufacturers on top of one another has to check compatibility themselves – in case of doubt it is stated in neither of the data sheets.

Selection guide: which weber product for which layer?

The overview arranges the Weber range we stock by the layer on the building. The details in the last column come from the product data of the respective article.

Composite waterproofing: the layer you never see again

In showers, bathrooms and everywhere that water can arrive behind the tile, a composite waterproofing belongs between substrate and tile adhesive – often abbreviated AIV. It is invisible after tiling, and precisely for that reason it is occasionally left out. The damage then shows years later on the back of the wall.

What tradespeople use Saint-Gobain Weber for

• Waterproofing basement walls and components in contact with the ground
• Bridging cracks in the substrate without the layer tearing
• Building up on existing bitumen layers afterwards
• Waterproofing bathrooms and showers in composite
• Laying tiles on wall and floor under high water exposure
• Blocking water vapour before the floor build-up
• Coating workshop and garage floors liquid-tight
• Broadcasting floors for slip resistance or leaving them smooth
• Laying out floor surfaces in a RAL shade

Saint-Gobain Weber product families

Good to know

• The prefix is the order. weber.prim, weber.tec, weber.xerm, weber.floor – each family covers one layer on the building. The number behind it designates the individual product.
• OS-8 is a surface protection system class from the rules for concrete repair. It describes a dense, mechanically loadable coating – the mention on weber.floor 4740 is therefore a performance specification, not a colour designation.
• Total solid means: without solvents and without water as thinner. The layer hardly shrinks as it cures, and nothing escapes into the room.
• C1 E and S2 according to DIN EN 12004. C1 stands for a cementitious adhesive of the basic class, E for extended open time, S2 for high deformability – the value that matters with moving substrates and large formats.
• Reactive waterproofing instead of bitumen sheet. According to the product data, Superflex D24 can also be applied afterwards onto existing bitumen layers – an argument in existing buildings, where the old waterproofing cannot be removed.
• Crack bridging from two millimetres. This specification decides whether a waterproofing can survive on a moving substrate. It describes how wide a crack in the substrate may become before the layer above tears open – a value that is considerably lower with rigid waterproofings.
• Pack sizes follow the area. 24 kg for the basement wall, 6 kg for the tiled area, 6 l for the primer, 10 kg for the floor: the pack sizes are tailored to typical coverage rates, not to round numbers.

Frequently asked questions about Saint-Gobain Weber