Rocky Hill, Connecticut -- A new line of Loctite Frekote mould-release agents and sealers from Henkel Corp. is designed for use on a variety of substrates, including rigid and elastomeric open cell polyurethane foams.
Henkel said they are easy to apply and fast curing, semi-permanent release agents which offer low mould buildup and minimal transfer, to simplify production of polyurethane foams and thermoplastic resins, coatings and films.
The three new products are clear, solvent-based polymers, spray-applied at between 95°F and 149°F (35°C and 65°C), drying in just 30 s when exposed to ambient moisture at 110°F. All three products are thermally stable to 450°F.
For flexible PU foams, Loctite Frekote PU7000 allows many releases of open cell or gloss surface foams before the mould needs cleaning. A PU7001 version is a high-slip, low-transfer release agent that requires very little cleaning of moulds and is designed for flexible or semi--rigid foams. The PU7200 type is a mould sealer and release agent offering high slip and minimal transfer on both flexible and semi-rigid polyurethanes.
These new semi-permanent release agents are ideal for use with rigid foams found in sporting equipment, safety padding, seating and protective guards; on elastomeric, open cell polyurethane foams used in pillows and mattresses; and on thermoplastic resins, coatings and films.