Waterproofing of underground parts of buildings: Depending on the water and ground conditions and the depth of the foundation of the structure, an appropriate thickness of the insulating layer should be selected. An according layer of BITFLEX 1KP is applied to the properly prepared and primed substrate using a trowel or suitable spraying equipment (with the spraying method, the thickness of a single layer applied should not exceed 3 mm). Waterproofing is recommended to be carried out in at least two working operations. Each operation should take place after the previous layer has dried.
Any service penetrations, expansion joints or other areas exposed to uncontrolled cracks should be reinforced with a 60 - 80 g/m² fibreglass mesh. Be sure to use cuffs to seal all types of installation penetrations.
The freshly applied coating must be protected from strong sunlight (e.g. by shading), flooding, rain and negative temperatures. The time for the waterproofing to bind completely, allowing the trench to be backfilled, is approximately 3 days. After binding, the waterproof coating should be protected against mechanical damage associated with backfilling the excavation.

Damp proofing of underground parts of buildings: In the case of damp proofing, BITFLEX 1KP can be applied to the properly prepared and primed substrate in one layer. It is recommended that the thickness of the bonded coating be at least 2 mm.

Bonding of thermal insulation boards on foundation walls: Apply thermal insulation boards after the waterproofing layer has fully set (dried). Hydrophobized insulation boards should be sanded before bonding. Apply BITFLEX 1KP compound in spots on polystyrene boards (10 - 12 palm-sized spots per a 0,5 m² board). Then wait approx. 15 minutes (depending on the temperature conditions) before bonding the board. After the wait, the boards should be applied and firmly pressed against the levelled substrate. Begin bonding at the bottom of the excavation. Thermal insulation boards are recommended to be supported on the footing offset and, if this is not possible, to be supported during binding. The excavation can be backfilled after 3 - 7 days, after full bonding properties of the compound are obtained.

Before use, please read the application details in the product's Technical Data Sheet.

Documents for download

Declaration of Performance

Safety Data Sheet

Technical Data Sheet