What is the typical shrinkage rate of this silicone rubber?

The shrinkage rate is consistently 0.3% across all models.

How long does it take to demold after curing?

You can start using the rubber molds after 24 hours of curing.

What is the mixing ratio for the silicone rubber?

The mixing ratio for components A and B is 2%.

Easy Operating Silicone Rubber RTV-2 Silicone Rubber for Gypsum Casting

Name: Easy Operating Silicone Rubber RTV-2 Silicone Rubber for Gypsum Casting
Brand: Dongguan gangtian polymer materials Co.Ltd.
SKU: 1958764932

Guangdong, ChinaDongguan gangtian polymer materials Co.Ltd.

US$4.00-5.65

200 kg

Sample price:US$6.25/kg.Request sample

Product profile

Customization

Available

Material

Organic Silicone

Application

Industrial

Model NO.

GTSIL-T15, T20, T25

Certification

ISO, FDA, REACH, RoHS

Color

Adjustable

Transport Package

1kg, 5kg, 10kg, 20kg, 25kg and 200kg Packing

Trademark

GT SILICON

Origin

China

HS Code

39100000

Production Capacity

500tons/Month

Key features

Adjustable Color Options: Color is adjustable to meet specific project requirements.

High Tear Strength: Exceptional tear strength ranging from 12-30 KN/m2 for durable molds.

Room Temperature Curing: Cures at room temperature with a long working time for easy operation.

Multi-Material Compatibility: Suitable for casting plaster, gypsum, concrete, wax, and polyurethane.

FDA & ISO Certified: Complies with ISO, FDA, REACH, and RoHS standards for safety.

High Elasticity: Elongation up to 550% allows easy removal of complex replica parts.

Versatile Applications: Ideal for art, furniture, architecture, soap, candles, and crafts.

Low Shrinkage Rate: Consistent 0.3% shrinkage ensures high precision in final products.

Company profile

Dongguan gangtian polymer materials Co.Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2016-08-08 CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤7.22h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryDongguan Gangtian Polymer Materials Co., Ltd. is identified as a China-based manufacturer of silicone and polymer materials, established in 2011, with 59 employees and a 6,000 m² manufacturing plant. Its product portfolio includes RTV 2 silicone rubber, LSR, silicone oil, silicone ink, pigments, and electronic potting compounds. The supplier reports more than 10 production lines and annual capacities totaling 6,900 tons across listed products, as well as exports since 2016 with 21%–30% of sales from exports. It holds an ISO 9001:2015 certificate and reports six R&D engineers and six to ten quality-control staff. The information supports strengths in certification, product breadth, production scale, and international market experience. However, the provided evidence does not sufficiently establish financial credibility, customization capability, or specific customer cases. After-sales capability is indicated by a stated focus on after-service but is not documented in operational detail.

Supplier typeThe supplier is explicitly identified as a manufacturer and as a professional manufacturer of RTV 2 liquid silicone rubbers. Its company type is also described as a limited company, with operations in Dongguan, Guangdong, China.

CertificationsThe supplier holds an ISO 9001:2015 certificate for supplier management systems. This is explicit evidence of a formal quality-management certification.

R&D capabilityThe supplier describes an R&D focus on innovation, reports six R&D engineers, and states that it has developed performance-enhancing silicone solutions. These statements support an established R&D function, although no patents, laboratories, or quantified R&D results are provided.

Production capacityThe supplier reports more than 10 production lines, a 6,000 m² manufacturing plant, and product capacities of 2,500 tons each for tin and platinum silicone rubber, 1,000 tons for silicone oil, 800 tons for electronic potting compound, and 100 tons for pigment. It also states production capacity above 500 tons per month, indicating substantial manufacturing capability.