Silputty
Extra Firm Putty (Silputty SP-90)
Silputty SP-90 is a two-part, Platinum Based, Easy 1 to 1 mix, quick curing silicone RTV. Silputty SP-90 is a kneadable dough that is designed for its rubber hardness—90 A, equivalent to the hardness of a skateboard tire. Applications include custom tool fixtures, quick impressions, calibration impressions, rapid prototype, and body impressions. **Please check Addition Cure Tech Sheet for cure inhibitions.
Mix Instructions
Mix 1 part by weight of cross-linker to 1 part by weight of base--visual estimation of proportions is usually sufficient. Knead components together until color is uniform. Be careful not to mix more than can be applied in 3 minutes. Press material into desired surface--taking care to avoid air entrapment. Temperature will affect the cure rate with warmer materials curing more rapidly. **Avoid using—Tin Based (Condensation) Silicone RTV, Sulfur Clay, and Latex Gloves that will inhibit surface cure resulting in a tacky or gummy surface. **Please check Addition Cure Tech Sheet for cure inhibiting materials
|
Consistency-Mixed |
Firm Putty |
|
Gel Time |
2 min |
|
Cure Time |
4.5 min |
|
Mixed Color |
Light Purple |
|
Durometer Shore A |
88 (+/-) 3 |
|
Viscosity, cps |
Kneadable Dough |
|
Mix Ratio |
1 to 1 |
|
Color-Base |
Tan |
|
Specific Gravity |
1.40 |
|
Elongation |
100% |
|
Tear Strength, ppi |
20 |
|
Service Temp |
C -60 to 200 C |
|
Shelf Life |
6 months |
**Values listed are typical and not intended for use in specifications. Test methods are available on request.
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.