Koster Deuxan 2C

Deuxan 2C is designed for the secure and permanent exterior waterproofing of basement walls, foundations, floor plates, etc. and for intermediate waterproofing of balconies, terraces without inhabited sub-structures, underneath screeds as well as for wet and damp rooms. KÖSTER Deuxan 2C is also suitable for bonding insulation and drainage boards.

Deuxan 2C can also be used in a variety of other applications, such as waterproofing foundations, pillars or columns in contact with the soil, bridge abutments, embankment and retaining walls, etc.

Authoritative according to DIN 18533:2017-07:

• W1-E: Soil moisture and water without hydrostatic pressure
• W2-E: Water with hydrostatic pressure
• W3-E: Water without hydrostatic pressure on earth-covered ceilings W4-E: Splash water and soil moisture on the wall base as well as capillary water within and under walls

The execution of the waterproofing has to be made in accordance with loading conditions according to DIN 18533, Part 1, Section 5. The loading condition (water exposure class) have to be determined by the planner prior to the application.

Substrate

The substrate should be dry or slightly damp, (no visible water), frost- free, free of tar and oil and free of loose particles. Remove mortar residues, break edges, and vertical and horizontal inside corners and transitions should be rounded out by installing mineral fillets.

Mineral substrates always have to be primed with KÖSTER Polysil TG 500 (approx. 100 – 130 g / m2) by spray application. Strongly absorbent surfaces may require up to 250 g / m2. Priming is also necessary when applying a subsequently scratch coat. Priming is not necessary on polystyrene substrates. By existing bituminous residues, priming the substrate with KÖSTER Bitumen Primer is recommended.