Koster KB-Fix 5 is an extremely fast setting waterproof and weatherproof mortar.
Koster KB-Fix 5 is intended for swift filling of holes and cracks in plaster and masonry, for anchoring wall anchors, anchor fittings, brackets of roof gutters and down pipes, handrails, grates, radiators as well as for swift repairs for sealing pipe penetrations in connection with Koster KB-Flex 200.
Koster KB-Fix 5 is suitable for both inside and outside use.