Silicone rubber is available
in discs with diameters of 9", 12", 15", and
18". Sold by set, as well as rolls of approximately 20"
wide (sold by the pound).
HCR Rubber Silicone Materials
Product
Color
Characteristics Applications Rubber Silicone
SPB
Light Blue
Like BackSil Red with stronger
tear resistance. Excellent for casting plastic, polyurethane,
and Epoxy. Durometer: 45.
BackSil
Red
Dual purpose, great silicone to
handle polyurethanes, polyesters, and epoxies. Also,
inexpensive for backup of our other silicones, adding
firmness and stability while economizing. 70 Duro.
SoftSil
Pink
Very soft silicone mold making
material with excellent tear resistance and elongation.
Ideal for casting large and complex pieces with white
metal. Durometer: 50 shore A.
ZincSil
Sky Blue
Superior resistance to high temperature.
Great for casting pieces out of zinc alloys with less
or without undercuts. Durometer: 65 shore A.
VnatSil
Green
The most flexible of heat resistant
silicones. Excellent tear strength and undercut capability.
Exceptional heat resistance. Durometer: 55 shore A.
NBB
White
The most economic heat resistant
silicone. Good overall performace. Ideal for relatively
short product runs. For fishing lure manufacturing.
Durometer: 65 shore A.
Polyurethane Casting Elastomers
Flexible and rigid. Available in 1 gallon, 5 gallon, and 55
gallon kits.
Name
Description
MC-65 A/B
For machine casting, rapid de-mold - fast curing. Used
for small molds, tires for models.
TC-806
Rigid casting system. Used to cast
models, objects of art, industrial prototypes and toys.
RC-8002
Produces a rigid casting, used to make models, prototypes
and fast production runs.
RC-8004
Same as the TC-8002, but with fire
retardant properties.
Organic Rubbers
Our mold rubber is available in sets of 9", 12",
15", and 18" diameter. A set is made of 2 pieces
of 1/2" thickness. Custom sizes available upon request.
Name
Characteristic
PR-1
Excellent for heavy
build-up. Good de-layering, excellent compounding or
adhesion to itself. 63 Duro.
PR-3
High temperature
rubber mold-making material. Excellent de-layering with
no need of liquid chemicals. Superior life and good
compatibility with lead and lead free alloys for bulky
figures. 63 Duro.
WR-4
Very low shrinkage
material. Excellent for flat round pieces. Not recommended
for under-cuts. 70 Duro.
