HONG YE SILICONE RTV Moulding Silicone Rubber for Gypsum Cornice is a dual-formula RTV 2 Silicone Rubber, including Condensation Curing Silicone Mold Rubber and Addition Curing Silicone. This two-component liquid silicone offers exceptional fluidity, room-temperature curing, and zero shrinkage, with high tensile strength and reusability. Supporting pouring, brushing and spraying applications, it is food grade and highly economical, ideal for gypsum cornices, plaster mouldings and decorative crafts. Backed by 20 years of manufacturing expertise, it serves global buyers with stable quality and wide hardness customization.
Product Overview
This professional Mold Making Silicone is a high-performance liquid silicone designed for gypsum cornice and architectural decoration molding. It is available in two proven formulations: tin-based condensation curing silicone mold rubber (mix ratio 100:2–5) and platinum-based addition curing silicone (mix ratios 1:1 or 10:1). As a core Industrial mold silicone rubber, it cures at room temperature with outstanding bubble release, moderate hardness and excellent flexibility, ensuring easy demolding and high duplication times. It delivers stable, non-shrinking molds with strong abrasion resistance, making it the most cost-effective choice for global architectural and craft manufacturers.
Technical Specifications
Product Type: RTV 2 Silicone Rubber, Condensation Curing & Addition Curing Silicone; Form: Two-component liquid silicone; Mix Ratios: Tin type 100:2–5, Platinum type 1:1 / 10:1; Curing Mode: Room temperature curing; Hardness: Customizable moderate range; Key Traits: Zero shrinkage, high tensile & tear strength, food grade certified; Operation Methods: Pouring, brushing, spraying; Abrasion Resistance: Excellent; Reusability: High-cycle repeated use.
Product Images and Videos
Product Images:
Visuals include liquid silicone texture shots, mold making demos, finished gypsum cornice samples and application close-ups to showcase performance and details.
Product Features & Advantages
It provides exceptional fluidity and operability for effortless molding and demolding. With moderate, customizable hardness, it balances flexibility and durability for gypsum applications. High tensile and tear strength extend mold life, while excellent bubble release ensures flawless detail replication. It cures completely at room temperature with zero shrinkage and strong abrasion resistance. The food grade formula meets safe production standards, and it supports pouring, brushing or spraying for versatile use. As a reusable Mold Silicone , it offers superior economic value compared to other mold rubbers.
How to Use
Step 1: Select condensation or addition type liquid silicone and prepare the specified mixing ratio of Part A and Part B.
Step 2: Mix the two components evenly to ensure uniform formula distribution.
Step 3: Perform vacuum defoaming to remove trapped air for smooth mold surfaces.
Step 4: Apply the silicone via pouring, brushing or spraying onto the master model based on product shape.
Step 5: Allow full room-temperature curing without external disturbance.
Step 6: Demold gently after complete curing, and the mold is ready for repeated gypsum casting.
Application Scenarios
Primarily used for gypsum cornice, plaster mouldings, concrete decorations, cement sculptures and cultural stone. It also applies to poly resin crafts, PU crafts, gypsum crafts, Toy mold silicone products, stationery gifts, Buddha statues, relief furniture, building decoration materials and European components. It helps manufacturers reduce production costs, improve molding efficiency and maintain consistent product quality for large-scale decorative production.
Certifications and Compliance
This product holds ISO 9001 quality management certification and CE certification. The platinum-based addition curing silicone is certified as Food grade mold silicone, complying with international environmental and safety standards, supporting smooth global procurement and customs clearance.
Customization Options
We offer OEM customization for hardness, viscosity, curing speed and color. We also adjust mixing ratios for condensation and addition curing formulas to match Rapid prototyping silicone needs and large-scale gypsum cornice production requirements.
Production Process
Made with high-purity Silicone raw materials, the product undergoes precise formula blending, closed vacuum mixing, performance testing and standardized packaging. Each batch is inspected before shipment, supported by mature production lines and a professional R&D team to ensure stable quality for bulk orders.
FAQ
1. What mixing ratios are available for this silicone?
Tin-based condensation type uses 100:2–5, platinum-based addition type uses 1:1 or 10:1.
2. Can this silicone be used for materials other than gypsum?
Yes, it suits resin, PU, cement, wax and craft casting applications.
3. Is the silicone food grade safe?
Yes, the platinum addition curing variant is certified food grade mold silicone.
4. What application methods are supported?
It can be poured, brushed or sprayed onto master models for flexible use.
5. How is the product packaged?
Samples are 1kg, bulk packaging includes 20kg, 25kg and 200kg metal or plastic drums, shipped as non-dangerous goods.