Silpak, Inc

Products

Flexible Urethane Foams

SP 300-3**, SP 200-4, SP 100-8, SP 400-15 are two-component, self-skinning, non-CFC, urethane flexible foam systems. They offer excellent flow and fast de-molding times for increased production cycles. Thickness of skin can easily be controlled by proper mold temperature settings and the amount of mixed product packed in the mold. **SP-300-3 is a low density foam that inherently exhibits difficulty in achieving good skin thickness and is therefore recommended for applications where foam is used as a filler, i.e., latex skin back filled with foam.

Applications:
Recommended for making molded components for aircraft, automobile, recreation vehicle and furniture industries (arm rests, head restraints, dashboards, crash pads, side panels, steering wheels and misc. moldings); special effects and puppets; any application where low-density flexible foam is required.

Typical Properties of Liquid Components: 
                        Component A         Component B
Viscosity,cps:     41                         1740
Specific Gravity:  1.17                      1.04

**SP-300-3 is ratio sensitive and is recommended as fill foam only

Mold Preparation:

Polyurethane foams adhere to most surfaces and a release agent should be applied prior to casting. For non-silicone molds (Plaster, Urethane RTV Rubber, Metal) a suitable release is recommended--Paste Wax, PartAll Film #10 (PVA) or R-80 (Liquid Wax). Mold should also be completely free of any moisture. For optimal castings, mold should be heated to 80-125F for initial casting. Once heated and cycled, mold should maintain heat for continued production.

Mixing and Curing:

Mix by recommended weight of A and B. Shake or mix the A & B prior to pouring weighted amounts. Material should be stored and used at 80F. A quick high-speed mix for 10-15 seconds is required to thoroughly integrate A & B. Pour mix as quickly as possible into the pre-heated mold and leave undisturbed until part is fully cured—15-25 minutes. As foam rises, avoid agitating or vibrating the mold, which may cause the foam cell structure to collapse. De-molding times with urethane flexible foams will change with size of cast piece and temperatures of materials and tools.

ACCESSORIES
*R-80 Mold Release–Wax solution used for hard or rubber tooling molds to improve skin quality on cast part
*CU-Pigments—Custom color parts--Red, Blue, Black, White, Brown, Fleshtone, Yellow

Storage: Area should be maintained between 65F and 86F.
Shelf Life: 6 Months Unopened, sealed containers.

The information and data contained herein are based on information we believe reliable. Each user of the material should thoroughly test any application and independently conclude satisfactory performance before commercializing. Suggestions of uses should not be taken as inducements to infringe on any particular patent.