Clear Platinum Cure Silicone Rubber for Molds | Food-Grade, High Temperature Resistant | SILCAST™ 45 CLEAR

Description

Flexible Clear Platinum Cure Silicone Rubber for Molds. SILCAST™ 45 CLEAR is a low-viscosity, platinum-cure silicone rubber designed for transparent molds requiring excellent detail reproduction, durability, and high temperature resistance. This semi-flexible silicone system cures at room temperature and produces clear molds ideal for resin casting, prototyping, jewelry, architectural elements, candles, soaps, chocolate molds, and industrial tooling applications. Thanks to its excellent flowability and leveling properties, SILCAST™ 45 CLEAR accurately reproduces the finest details and complex patterns while maintaining outstanding mechanical strength and tear resistance. Platinum-cured silicone molds also provide superior surface finish when casting clear resins.

This system is food-grade compliant (FDA 21 CFR 177.2600) and can withstand operating temperatures from 50°C up to 200°C, making it suitable for both industrial and food-related molding applications.

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Key Features

• Clear platinum-cure silicone rubber
• Shore A45 hardness (semi-flexible)
• Excellent detail reproduction and surface finish
• High tear strength and elongation
• Food-grade compliant (FDA 21 CFR 177.2600)
• Temperature resistance up to 200°C
• Low viscosity for easy pouring and vacuum degassing
• Easy demolding
• Long mold life and durability

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Typical Applications

• Clear resin casting molds
• Jewelry molds
• Chocolate, soap, and candle molds
• Prototyping and model making
• Architectural molds
• Vacuum bagging molds
• Wind turbine blade molds
• Rock climbing holds
• Industrial molds and tooling

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Technical Properties (Typical)

• Mixing Ratio: 1A : 1B (by weight)
• Pot Life: 25-30 minutes
• Demold Time: 12–18 hours
• Full Cure: 24 hours
• Hardness: Shore A45
• Tensile Strength: 1160 psi
• Elongation: 315%
• Tear Strength: 3395 psi
• Linear Shrinkage: 0.1%
• Operating Temperature: Up to 200°C
  These values are listed in the technical data sheet (page 3).