BK-A15 Platinum-Cure Silicone Rubber – Shore A15
BK-A15 Platinum-Cure Silicone Rubber – Shore A15
BK-A15 is a two-component, platinum-cure liquid silicone rubber for flexible mold making. This material-only product is supplied as equal-weight Parts A and B.
Available pack sizes
- 1 kg kit: 0.5 kg Part A + 0.5 kg Part B
- 2 kg kit: 1 kg Part A + 1 kg Part B
- 8 kg kit: 4 kg Part A + 4 kg Part B
Material overview
- Hardness: Shore A15
- Mix ratio: 1:1 by weight
- Cure system: platinum-catalysed addition cure
- Appearance: translucent, viscous liquid
- Typical working time at 23°C: 30 ± 5 minutes
- Typical cure time at 23°C: 4 ± 1 hours
Values are typical data from the current BKSilicone TDS under the stated test conditions. Actual processing can vary with temperature, batch size, master material and workshop conditions. Run a small compatibility and cure test before production.
Typical applications
Suitable for general mold making, larger molds and projects that require a flexible Shore A15 silicone. Final suitability depends on the master material, geometry, release system and production conditions.
Cure inhibition
Platinum-cure silicone can be inhibited by sulphur-containing clay, latex, tin-cure silicone residue, amines, some epoxy curing agents and uncured or unsealed SLA, LCD or DLP resin prints. Keep tools and master surfaces clean and test before production.
Storage and shelf life
Store unopened original containers at 15–25°C. Recommended shelf life is 12 months from the date of manufacture.