Bostik Polyurethane Sealant

Bostik Fireban

Fireban one is a fire rated, single component, low modulus polyurethane sealant curing via air humidity to form a elastomeric weatherproof fire rated seal.

Recommended Uses

  • Sealing joints in expansion and construction joints in precast.
  • Sealing joints in insituconcrete, block and brick work.
  • Penetration and core hold sealing in conjunction with fire collars or pillows or in areas requiring intumescent sealing.
  • Sealing joints that require acoustic rating performance.

Approvals/Standards

  • AS 1526-1973
  • ASTM C920-1986
  • BS4254-1983
  • Fire Test Certification to AS1530-4 (1990), AS4072-1 (1992) and BS476-20 (1987)
  • Acoustic certification to BCA Standards
  • BOMBA Approved (Malaysia)
  • Certificate of Conformity – PSB Singapore

Seal N Flex

Seal ‘N’ Flex is a low modulus, one component, polyurethane sealant.  When cured it will form a tough, flexible seal capable of cyclic expansion and compression movement of ±50% of the original joint width.

Seal’N’Flex is virtually unaffected by normal weathering conditions such as rain, sunlight, snow, sleet, ultra-violet radiation, ozone, atmospheric contamination and pollution.  Its excellent weatherability enables it to retain its original properties after years of exposure.

Approvals And Standards

  • CSIRO RILEM LONG – TERM SEALANT DURABILITY STUDY DBCE Doc.97/196 (M)
  • ISO 11600-Class F-25LM
  • DIN 18540 (German) and SNJF (French) approval as a low modulus external joint sealant
  • ASTM C.920-87 & 98 (USA) as Type S, Grade NS, Class 25, use NT, G, A, M, & O as an external joint sealant.
  • AS4020 1992 Potable water
  • AS1157-1972 Resistance to fungal growth Ministry of Agriculture and fisheries New Zealand (Meat, fish, Game, Poultry-All areas)