Material and DRY Molding
Process
Dry molded expandable foams
such as “expanded polystyrene” (EPS) and “expanded copolymers” (such as “BASF
E-por polyethylene polystrene and “Synbra
High Temp” polyphenylene oxide-polystyrene) are
produced by a unique, patented, heat-conducted process. The process uses machinery and molds made in our shop that are specifically designed for reliable, long-term production of high quality, molded parts.
The process features
accurate mold alignment for single or multiple cavity molds, calibrated raw
material filling (your molded part density is quoted in a range of densities
from 2.0 lb/ft3 up to 37lb/ft3), and precise temperature
control during automatic and semi-automatic machine molding cycle.
Your finished molded parts
will have: (1) clean, dry, smooth surfaces on which your surface details stand
out sharply; (2) solid material fusion for glossy smooth appearance; this
results from steam jackets in the mold wall which provides even heating of the
mold wall, (3) precise dimensions.
Tempo produces a variety of expanded densities each day for unique customer applications.
The material is expanded in one of four “pre-expanders” which work like sophisticated popcorn poppers to expand the resin to the desired weight. (You can see some of the lighter weights on the
Density Conversion Chart on this
website).
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