Tin Cure Liquid Molding Silicone Rubber For Plaster Casting Cornice Mold

We are a reputed name in this industry as a Exporter & Manufacturer of Tin Cure Liquid Molding Silicone Rubber For Plaster Casting Cornice Mold in Dongguan, Guangdong, China.
1. Description
Plaster is an age-old casting media used today for casting statuary, home decor items (e.g., lamps, wall plaques) as well as ornamental moldings and decorative millwork.
GC Silicone manufactures two-component, room temperature curing silicone mold materials that are used widely in the plaster casting industry to create highly detailed plaster parts.
Plaster can be cast repeatedly into silicone molds without release agents. The primary differences between polyurethanes and silicones are the cost (silicones are more expensive than polyurethane) and the range of hardness available within the product lines. For highly detailed and delicate castings, silicone rubbers may be necessary as they are available in softer and more flexible options compared to polyurethanes.
The popular silicone mold rubber is C-820/C-825 for these applications. A tin-cured silicone rubber with a 1A:10B mix ratio; measure with a digital scale.

2. Technical Datasheet
Typical general characteristicsA Inspection MethodValue
Product data (Catalyzed A+B)C-820C-825
HardnessShore A20A 225A 2
Mix RatioA:B100:3100:3
Color/WhiteWhite
Pot life25 A C (77F)30-40mins30-40mins
Curing time25 A C (77F)3-4 hours3-4 hours
Mixed viscositymPa.s16000A 100020000A 1000
Tear-strengthkg/cm20A 222A 2