Koster NB 4000 – 25kg (hybrid waterproofing coating)
Koster NB4000 is an external waterproofing system for balconies, podium decks and walls.
Trowel applied and with excellent crack bridging properties NB4000 is very versatile due to the variety of uses and relaxed application requirements.
Koster NB4000 is trafficable, UV Stable (so can be exposed to sunlight) and can also be applied in temperatures down to 2c.
NB4000 can be rendered over making it an ideal system to link external waterproofing used on walls up to damp proof course level.