Tin Cure Silicone Rubber RTV2 40 Shore A Industrial Grade Liquid for Gypsum Crafts Molds
Price:
Negotiable
MOQ:
1 Kilogram
Delivery Time:
5-7 Days
Brand:
Hanast
Product Description
Industrial Grade RTV2 Tin Cure Liquid Silicone Rubber for Gypsum Craft Molds — HN-640 A/B
HN-640 A/B is an industrial-grade, two-component RTV2 tin cure (condensation cure) liquid silicone rubber, mixed at 100:2 and vulcanized at room temperature. With an easy-foaming, high-fluidity formulation, high tear resistance and low shrinkage, it is a cost-effective choice for gypsum craft molds, construction molds and general industrial mold making, supplied in bulk for factory production runs.
Key Features
- Easy foaming and excellent fluidity — self-leveling, easy bubble release, easy pouring
- Strong tear resistance, high & low temperature resistance, acid & alkali resistance, aging resistance
- Low linear shrinkage (≤0.2%, i.e. ≤2‰) for faithful reproduction of fine detail
- Molds can be turned over many times with long service life; finished part will not turn white
- Non-toxic, odorless and shipped as non-hazardous
- ROHS & SGS certified; color, hardness, viscosity and operating time adjustable (OEM/ODM)
Technical Specifications
| Property | Value |
|---|---|
| Model | HN-640 A/B |
| Mixing Ratio (A:B) | 100:2 |
| Viscosity | 170,000 cps |
| Density | 1.06 g/cm³ |
| Hardness | 20 Shore A |
| Tensile Strength | 3.1–3.6 MPa |
| Tear Strength | 19.8–24.3 kN/m |
| Elongation | 600–720% |
| Linear Shrinkage | ≤0.2% (≤2‰) |
| Curing Agent Addition | 2–3% |
| Operating Time | 30–40 minutes |
| Curing Time | 3–4 hours at room temperature |
Applications
- Gypsum craft and plaster mold making
- Construction molds and industrial mold making
- Large stones, cement parts, cultural stones, Roman columns and stone carvings
- Resin & gypsum handicrafts, soap molds, tire turning and segmented molds
Packing & Trade Information
- Packing: 25KG / 200KG iron drum (bulk supply for factory production)
- Place of Origin: Guangdong, China
- Certification: ROHS, SGS
- Minimum Order Quantity: 1 kilogram; wholesale price on request
- Delivery Time: 5–7 days
- Payment Terms: T/T
- Shipping: non-hazardous; sealed storage away from heat, light and water
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Get in Touch
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Company
Shenzhen Hanast New Material co.,LTD
Location
Units 1210-1211, Block B, Building 6, Hengda Fashion Valley, Dalang Street, Longhua District, Shenzhen, Guangdong Province, China
Contact Person
Candy