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Home> Products> Mold Making Silicone> Condensation Curing Silicone Mold Rubber> Condensation Curing Silicone Rubber for Gypsum Casting
Condensation Curing Silicone Rubber for Gypsum Casting
Condensation Curing Silicone Rubber for Gypsum Casting
Condensation Curing Silicone Rubber for Gypsum Casting
Condensation Curing Silicone Rubber for Gypsum Casting
Condensation Curing Silicone Rubber for Gypsum Casting
Condensation Curing Silicone Rubber for Gypsum Casting

Condensation Curing Silicone Rubber for Gypsum Casting

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Incoterm:FOB,CFR,CIF,EXW,FAS,FCA,CPT,CIP,DEQ,DDP,DDU,Express Delivery,DAF
Min. Order:1 Kilogram
Transportation:Ocean,Land,Air,Express
Port:s,h,e
Product Attributes

Model No.HY-640

BrandHONG YE SILICONE

Packaging & Delivery
Selling Units : Kilogram
Package Type : 1kg/5kg/25kg/200kg
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Condensation curing silicone mold rubber
Product Description
 Silicone for Gypsum Plaster Molding | HONG YE SILICONE
 
Product Summary
HONG YE SILICONE Silicone for Gypsum Plaster Molding is a professional flexible Mold Making Silicone designed for delicate gypsum and plaster products. Available in both tin-cured and Platinum cured mold silicone variants, with a popular hardness range of 10–30 Shore A, it balances ideal softness for damage-free demolding and high strength for detailed, large-scale molds. As a reliable RTV 2 Silicone Rubber, it features low shrinkage, excellent flow leveling, and food-grade compliance in platinum-based formulas. Suitable for gypsum, resin, PU, and wax casting, it delivers durable, bubble-free molds with fine detail replication, supporting global B2B buyers in architectural decoration and craft manufacturing with consistent quality and versatile performance.
 
Product Overview
This liquid silicone is engineered specifically for gypsum plaster molding, addressing the core needs of softness for fragile gypsum parts and robustness for large, detailed components. HONG YE SILICONE offers both tin-base Condensation Curing Silicone Mold Rubber and platinum-base Addition Curing Silicone options, with 10–30 Shore A hardness as the industry-preferred range. As part of our premium mold making silicone lineup, it ensures safe demolding without breaking delicate plaster pieces while maintaining structural integrity for repeated use, making it a top choice for global architectural and craft mold producers.
 
Technical Specifications
Product Type: RTV 2 Silicone Rubber, Condensation Curing & Addition Curing Silicone; Hardness Range: 10–30 Shore A; Form: Two-component liquid silicone; Key Traits: Low viscosity, low linear shrinkage, high tensile & tear strength; Temperature Resistance: Standard industrial high-temperature resistant grade; Compliance: Platinum grade meets FDA food-grade standards; Performance: Anti-deformation, anti-aging, acid & alkali resistant, non-oily, bubble-free.
 
Product Images and Videos
Product Images:
 
Condensation curing silicone mold rubberCondensation curing silicone mold rubberCondensation curing silicone mold rubber
 
Materials include full views of the liquid silicone, finished gypsum molds, detail replication close-ups, and casting operation demos to showcase texture, fluidity, and application effects.
 
Product Features & Advantages
It offers tailored softness (10–30 Shore A) to prevent breakage during gypsum demolding while providing strong tear resistance for large molds. Platinum-based variants are Food grade mold silicone with FDA approval. It has low viscosity, outstanding flow leveling to capture the finest details, and low shrinkage for dimensional accuracy. The silicone is non-oily, bubble-free, anti-deformation, and resistant to high temperatures, aging, acid, alkali, and corrosion. It ensures easy demolding, high durability, and extended molding cycles for cost-effective mass production.
 
Usage Instructions
Step 1: Select the appropriate tin-cured or platinum-cured liquid silicone and mix with its curing agent as specified.
Step 2: Stir the mixture evenly and conduct vacuum degassing to eliminate bubbles for smooth molding.
Step 3: Pour or brush the silicone onto the gypsum master model, ensuring full coverage of fine details.
Step 4: Allow the silicone to cure fully at room temperature without disturbance.
Step 5: Demold gently once cured, and condition the mold briefly before starting formal plaster casting.
 
Application Scenarios
Primarily used for molding all types of gypsum decorations, plaster mouldings, architectural elements, and garden ornaments. It also serves craft, furniture, Shoe mold silicone , Toy mold silicone , and casting for resin, PU, PVC, wax, and soap. Additional applications include vacuum bagging, wind turbine blades, boat hulls, and FRP products, delivering reliable performance across industrial and decorative sectors. It reduces product rejection rates, cuts mold replacement costs, and improves production efficiency for global buyers.
 
Certifications and Compliance
Platinum-based formulas hold FDA food-grade certification. The full product line complies with ISO 9001 quality management standards and CE certification, meeting international industrial silicone requirements. All formulations are non-toxic and eco-friendly, aligning with import regulations across major global markets for B2B procurement.
 
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Customization Options
We provide OEM customization for hardness (within 10–30 Shore A), viscosity, curing speed, and color. We also support switching between condensation curing and addition curing formulas, and Rapid prototyping silicone solutions for small-batch testing before mass production.
 
Production Process & Quality Control
Manufactured with high-purity Silicone raw materials, the product undergoes precise formula mixing, closed vacuum processing, and multi-point performance testing. Each batch is verified with pre-production samples and final inspection before shipment, supported by mature production lines to ensure consistent quality and stable supply for large-scale orders.
 
 FAQ
1. Why is 10–30 Shore A the recommended hardness?
This range is soft enough to avoid breaking delicate gypsum during demolding and strong enough to support large, detailed molds.
2. Is the platinum-based silicone safe for food-related gypsum crafts?
Yes, it is FDA-approved food grade Mold Silicone , suitable for food-contact casting applications.
3. Can this silicone be used for materials other than gypsum?
Yes, it works for resin, PU, PVC, polyester, wax, and more, and is compatible with shoe mold silicone and toy mold silicone production processes.
4. How to ensure no bubbles in the final mold?
Use vacuum degassing after mixing, and leverage the product’s low viscosity and natural flow leveling for bubble-free results.
5. Does the silicone resist long-term use?
Yes, it features anti-aging, acid, and alkali resistance, with high tensile strength to support repeated molding cycles.
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