Hostapur® OSB

Hostapur® OSB by Clariant acts as wetting, dispersing and plasticizing agent. It is based on long-chain olefin sulphonate. It is anionic in nature.

• It forms the air pores with excellent stability, reduces the shrinkage particularly of cement resp. cement-lime based mortar systems and prevents the formation of cracks.
• Other advantages are the higher frost resistance and reduced tendency to efflorescence of hardened mortar.
• It reduces the tackiness (occasionally caused by high dosage of methylcellulose).
• It improves the workability and pumpability of wet mortars.
• Hostapur® OSB is a suitable additive for masonry cements and a powerful foaming agent for any mineral based building material (f. e. for manufacturing of foamed light weight concrete).