|
PRODUCTS
OF ARCHITECTURAL AND FURNITURE APPLICATIONS
Master molders offers a variety of products for
the architectural and furniture industries. For those smaller more
detailed parts where lower durometers can be used, condensation
cure products RTV 7888-20, RTV 7888-30 are offered. Larger parts
requiring greater dimensional stability may best be molded using
addition cure products. Such as RTV 664, RTV 668.
Low viscosity
Materials of low to midium viscosity provide decreased pour time,
produce fewer voids in the molds, and facilitate dearation.
Low surface energy
The low surface energy of silicone allows it to wet surfaces very
well, aiding in excellent detail reproduction. It also imparts superior
release properties.
Resistance to polyester and polyurethanes
Polyester and polyurethane are the most commonly used casting resins
in this market segment. Barrier coats are often required due to
aggressive polyurethane resins.
Silicone is the most widely used material in these market segments.
Because of the geometry of some of these parts, flexibility is critical
to successful demolding. This requirement precludes the use of steel
molds and makes silicone an ideal molding material. Detail reproduction
is also essential. Due to its low surface energy, silicone wets
surfaces very well. This allows the intricate detail found on the
master to be reproduced with the same precision onto the silicone
mold. Finally, easy release of the part from the part is critical.
Significant adhesion of the casting resin to the mold surface can
cause a misshapen and/or broken final product.
|
MOULDING 