Smooth-On / Material reference
SiliconeSmooth-Sil™ 950
Smooth-Sil™ 950 is listed by Smooth-On as a platinum-cure silicone rubber. The source reports mixed viscosity of 35,000 cps, mix ratio by weight of 100A:10B, pot life of 45 minutes. This record connects 17 reported fields with 20 manufacturer document links. Review the original technical data sheet for the applicable test conditions and processing instructions.
35,000 cpsManufacturer-reported
100A:10BManufacturer-reported
45 minutesManufacturer-reported
18 hoursManufacturer-reported
50Manufacturer-reported
1.24 g/ccManufacturer-reported
Technical & safety documents
20 linksFiles open on the manufacturer's document host. Region and language follow the source listing; confirm the revision inside the file.
Technical BulletinEnglish · Not specified
Open file Ficha Técnica en EspañolSpanish · Not specified
Open file Food Safe Technical BulletinEnglish · Not specified
Open file Smooth-Sil 950 SDS | EnglishEnglish · United States & Canada
Open file Smooth-Sil 950 SDS | SpanishSpanish · United States & Canada
Open file Smooth-Sil 950 SDS | FrenchFrench · United States & Canada
Open file Smooth-Sil 950 SDS | EnglishEnglish · South & Central America
Open file Smooth-Sil 950 SDS | SpanishSpanish · South & Central America
Open file Smooth-Sil 950 SDS | EnglishEnglish · United Kingdom & European Union
Open file Smooth-Sil 950 SDS | SpanishSpanish · United Kingdom & European Union
Open file Smooth-Sil 950 SDS | FrenchFrench · United Kingdom & European Union
Open file Smooth-Sil 950 SDS | GermanGerman · United Kingdom & European Union
Open file Smooth-Sil 950 SDS | ItalianItalian · United Kingdom & European Union
Open file Smooth-Sil 950 SDS | GreekGreek · United Kingdom & European Union
Open file Smooth-Sil 950 SDS | DutchDutch · United Kingdom & European Union
Open file Smooth-Sil 950 SDS | PolishPolish · United Kingdom & European Union
Open file Smooth-Sil 950 SDS | CzechCzech · United Kingdom & European Union
Open file Smooth-Sil 950 SDS | HungarianHungarian · United Kingdom & European Union
Open file Smooth-Sil 950 SDS | NorwegianNorwegian · United Kingdom & European Union
Open file Smooth-Sil 950 SDS | EnglishEnglish · Australia & New Zealand
Open file Reported specifications
17 fieldsMaterial and processing data
| Property | Reported value | Evidence |
|---|---|---|
| Mixed Viscosity | 35,000 cps | Manufacturer table |
| Catalyst | Platinum | Manufacturer table |
| Color | Blue | Manufacturer table |
| Mix Ratio By Weight | 100A:10B | Manufacturer table |
| Pot Life | 45 minutes | Manufacturer table |
| Cure Time | 18 hours | Manufacturer table |
| Shore A Hardness | 50 | Manufacturer table |
| Specific Gravity | 1.24 g/cc | Manufacturer table |
| Specific Volume | 22.3 cu. in./lb. | Manufacturer table |
| Die B Tear Strength | 155 pli | Manufacturer table |
| Elongation @ Break | 320 % | Manufacturer table |
| 100% Modulus | 272 psi | Manufacturer table |
| Shrinkage | <.001 in./in. | Manufacturer table |
| Tensile Strength | 725 psi | Manufacturer table |
| Thermal Conductivity | 0.261 W/M*K | Manufacturer table |
| Useful Temperature (min) | -65 °F | Manufacturer table |
| Useful Temperature (max) | 450 °F | Manufacturer table |
Reported values are not independent test results. Original units and table wording are preserved. Extracted TDS rows can depend on the grade, component and source table headings; use the linked page to verify that context. Test methods, sample preparation and cure schedules may differ; consult the original TDS before making a performance comparison.
Selection & processing checks
Check the exact cure chemistry and intended substrate. Silicone rubber and silicone resin are distinct material types; this collection includes elastomers.
- Is the material addition-cure, condensation-cure or a one-part system?
- Which substrates and cure-inhibition precautions are listed?
- Are the reported tear strength and elongation measured under comparable conditions?
- Confirm the complete product designation, including any hardener, color or formulation suffix.
- Read the current SDS for handling, protective equipment, storage and disposal information.
The reported weight ratio for this record is 100A:10B. A weight ratio must not be used as a volume ratio without the appropriate density information.
Missing properties are not estimated. Similar values or shared application labels do not establish a drop-in replacement.
Other materials in this family
View collection| Material / manufacturer | Family | Key specification | Documents | Add to comparison |
|---|---|---|---|---|
| 20-1615 | Silicone | 6,000 | 3 linked | |
| PlatSil® 73-60 Silicone Rubber | Silicone | 40,000 cP | 3 linked | |
| PlatSil® 73-25 Silicone Rubber | Silicone | 6,000 cP | 2 linked | |
| PlatSil® Gel-10 | Silicone | 15,000 cP | 2 linked |