HONG YE SILICONE Thick Silicone for Brushing Molding is a two-component room-temperature curing ''RTV 2 Silicone Rubber" and professional ''Condensation Curing Silicone Mold Rubber", as a high-performance "Mold Making Silicone"with wide mixing ratio 100:2–100:5 and 20–35 Shore A hardness. This high-viscosity " liquid silicone ** supports both brushing and pouring molding, delivering high replication precision, no deformation, excellent tear strength and low shrinkage. Certified with RoHS, REACH and ISO systems, it is ideal for "Toy mold silicone", craft and manual mold production, ensuring easy operation and long service life for global B2B buyers.
Product Overview
This is a specialized high-viscosity **Liquid Mold Silicone** designed for brushing molding, belonging to our Industrial mold silicone rubber lineup. It is a two-part room-temperature vulcanized silicone, consisting of base material Part A and catalyst Part B, with adjustable mixing ratio to control hardness and curing speed. With high consistency and anti-flow property, it is engineered for complex, fine-detail and large-size mold making, solving flowing and incomplete replication issues in traditional brushing operations. It serves as a reliable solution for craft manufacturers, toy makers and manual mold design studios.
Technical Specifications
Product Type: RTV 2 Silicone Rubber, condensation curing silicone mold rubber; Form: Two-part thick liquid silicone; Mixing Ratio: 100:2 to 100:5; Hardness Range: 20–35 Shore A; Curing Mode: Room-temperature curing; Operation Methods: Brushing molding, pouring molding; Key Traits: High precision, non-deformation, non-stick surface; Shelf Life: 12 months (≤25℃, sealed dry & cool storage); Packaging: 1kg/jar, 5kg/20kg/25kg/200kg drum, vacuum packing available.
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Product Features & Advantages
It offers high-precision replication with zero deformation to restore delicate patterns completely. Excellent tensile and tear strength extend mold service life, with low shrinkage for stable dimension. The high-viscosity formula avoids flowing during brushing, perfect for vertical and large molds. 20–35 Shore A adjustable hardness matches diverse craft requirements. Non-stick and oil-free surface ensures easy demolding and clean casting. It adapts to both brushing (complex details) and pouring (simple patterns) for flexible production. Certified with RoHS, REACH, SGS, ISO9001 and ISO14001, it meets global industrial environmental and quality standards.
How to Use
Step 1: Clean the master model thoroughly, apply release agent (detergent, soapy water or Vaseline), weigh 100g silicone and 2–5g curing agent, then mix evenly. Keep all tools clean to avoid undercuring.
Step 2: Conduct vacuum defoaming for about 5 minutes (max 10 minutes) to eliminate bubbles, avoiding premature cross-linking.
Step 3: Use pouring for simple patterns (low-viscosity flow) and brushing for delicate/large molds (high-viscosity anti-flow). Adjust curing agent dosage to control curing speed. Silicone oil addition is not recommended.
Step 4: Demold after 3–5 hours, with 24 hours curing recommended for optimal mold strength. Curing time can be adjusted by ambient temperature.
Application Scenarios
Widely used for "toy Mold Silicone " production, poly resin crafts, PU crafts, gypsum crafts, unsaturated resin crafts, lighting & candle crafts, stationery and gift molds. It also supports high-precision manual mold design for various decorative and craft industries, helping manufacturers improve detail integrity, reduce rejection rates and lower mold replacement costs.
Certifications and Compliance
This series holds RoHS, REACH, SGS certifications, plus ISO9001 quality management and ISO14001 environmental management certifications, complying with EU and global import standards for industrial silicone materials, supporting smooth customs clearance and bulk procurement.
Customization Options
We provide OEM customization on hardness (20–35 Shore A), viscosity, curing speed and color. Packaging specifications and mixing ratio schemes can be tailored for mass production and small-batch Rapid prototyping silicone demands.
Production Process
Made with high-purity Silicone raw materials, the product undergoes precise proportioning, closed vacuum mixing, multi-performance testing and standardized filling. Each batch is inspected before delivery, ensuring stable viscosity and curing performance for consistent brushing and pouring results.
FAQ
1. Why choose this thick silicone for brushing?
Its high viscosity prevents flowing on vertical or complex surfaces, ensuring full detail coverage.
2. Can I use pouring method with this product?
Yes, it supports both brushing and pouring, suitable for both simple and intricate molds.
3. Is silicone oil allowed to soften the mold?
We do not recommend it, as it may cause oily residue and affect mold performance.
4. How to store unused silicone?
Keep in sealed packages at ≤25℃ in dry, cool places, with 12-month shelf life.
5. What causes undercuring?
Contamination from dust, grease or unclean tools; ensure full cleaning before operation.
Shenzhen Hong Ye Jie Technology Co., Ltd
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