MACSIL is a sprayable silicone release agent, designed specifically for releasing polyurethanes, polyesters and epoxy resins. This product does not contain CFCs, 111-trichloroethane or any other kind of halogenated solvent.
Key Features:
– Transparent
– Low mould build up
– Easy Release
Applications:
MACSIL is suitable for many moulding materials and a variety of substrates. Typical moulding materials are polyurethane epoxy acrylic and polyester casting resins.
MACSIL has been formulated for high quality general purpose moulding at temperatures from ambient to 100C.
The material is in a ready to use aerosol. It should be shaken well before use.
Usage Details:
The aerosol can should be held 250 mm – 350mm away from the mould surface. The can should be kept moving during the spraying otherwise patches of excess material will form. If possible the spray should be kept perpendicular to the area being sprayed.
The application of a number of light coats is preferable to one heavy coat. Light coats allow the solvent to dry more rapidly and improves the surface finish.
The application technique used will depend upon mould geometry. Deep sections undercuts and recesses often lead to incomplete coverage by shadowing parts of the mould surface from the release agent spray. This may lead to difficulty in releasing the moulded parts.
A thin sprayed coat should dry within 2 minutes at 20°C. Higher mould temperatures and a current of air over the mould will lead to shorter drying times. Casting onto release agent which has not fully dried may cause softening of the surface of the moulded part.
