FDA Grade Low Viscosity Platinum Cure Silicone Rubber with 1:1 Mix Ratio for Candle and Soap Molds

Anti-Yellowing UV Resistant FDA Grade Platinum Cure Silicone Rubber

This two-component platinum catalyzed RTV silicone rubber features an anti-yellowing UV resistant formula that keeps molds crystal clear and prevents discoloration under prolonged light exposure. The FDA grade addition cure system produces no byproducts, making it safe for food contact mold making applications.

Key Features

• Anti-Yellowing & UV Resistant - Special formulation maintains high transparency and prevents yellowing during long-term use
• Long Shelf Life 12 Months - Extended storage stability reduces material waste and inventory cost
• High Elongation 500-580% - Excellent flexibility for easy demolding of complex geometries and deep undercuts
• Easy 1:1 Mix Ratio - Equal-part A:B mixing simplifies operation and ensures consistent batch results
• High Tear Strength 15 N/mm - Durable molds with extended service life and more demolding cycles
• Customizable Hardness 10-30 Shore A - Tailored softness for different mold making applications
• Ultra-Low Shrinkage ≤0.1% - Precise mold reproduction with superior dimensional accuracy

Technical Specifications

Typical Applications

• Resin & Jewelry Mold Making
• Cake, Chocolate & Food Molds
• Candle & Soap Molds
• Gypsum & Concrete Decoration Molds
• Industrial Prototyping & Composite Molding

As a direct factory manufacturer, we offer custom OEM formulations with adjusted hardness, viscosity, working time or color. Free evaluation samples available. Contact our sales team today for bulk pricing.

About This Supplier

Shenzhen Hanast New Materials Co., Ltd. is a professional manufacturer specialising in the research, development, manufacturing and global supply of industrial silicone materials. As a strategic branch of the renowned Shenzhen Kanglibang Technology Co., Ltd., Hanast integrates over a decade of chemical adhesive expertise with a cutting-edge 40,000-square-meter modern production base (including our newly expanding Jiangmen facility) to deliver high-capacity, reliable material solutions worldwide.

We serve as a vital tier-one supplier and OEM/ODM partner for global factories, procurement managers and engineering teams across diverse sectors, including electric vehicles (EV), battery energy storage systems (BESS), solar inverters, LED lighting and industrial automation.

FAQ

• 1. Q: What is the mix ratio and cure time of this food grade silicone?
• A: Mix Component A and Component B at a 1:1 ratio by weight. Pot life is 30-40 minutes at 25°C. It cures in 3-4 hours at room temperature, or in 20 minutes or less at 80-100°C for fast production.
• 2. Q: Is this silicone food grade and safe for food contact molds?
• A: Yes. The HN-E620 is a food-grade platinum-cure (addition) silicone compliant with FDA 21 CFR 177.2600 and LFGB, and certified with MSDS and RoHS. It is non-toxic, odourless and releases no low-molecule by-products during cure, making it suitable for gummy, jelly, candy, chocolate and baking molds.
• 3. Q: Which molds is the 20 Shore A grade best for?
• A: The 20 Shore A (HN-E620) soft-medium grade is ideal for gummy, jelly, candy, chocolate, baking, soap and candle molds and other high-detail food-contact molds. Softer grades (5-15 Shore A) suit delicate work, while harder grades (35-50 Shore A) suit rigid molds and high-wear parts.
• 4. Q: What must I avoid to prevent platinum catalyst poisoning?
• A: Platinum-cure silicone may fail to cure in contact with organotin compounds, sulfur / polysulfide, amines, polyurethane, phosphorus compounds, organic acids and solder flux. Keep all substrates, tools and containers clean, and never mix with tin-cure silicone residues.
• 5. Q: What are the MOQ, supply ability and delivery time?
• A: MOQ starts at 20 kg. Supply ability is 50 tons per month, with about 3-5 days lead time for samples and 10-15 days for bulk orders. Components A and B are packed in 10/20/25 kg iron or plastic drums, or as 20/40/50 kg kit sets.