How can I prevent the silicone mold from burning out?

When using unsaturated resin, demold the product within 3 minutes to avoid heat damage, as the resin generates significant heat during curing.

What certifications does this product have?

The product is certified with ROHS, REACH, MSDS, and is safe for transport by sea or air.

What is the shelf life of this liquid silicone rubber?

The product has a long shelf life of up to 18 months when stored properly.

Condensation Catalyst Eristic RTV 2 Liquid Silicon Rubber for Concrete Mold Making

Name: Condensation Catalyst Eristic RTV 2 Liquid Silicon Rubber for Concrete Mold Making
Brand: Dongguan gangtian polymer materials Co.Ltd.
SKU: 2001533235

Guangdong, ChinaDongguan gangtian polymer materials Co.Ltd.

US$6.50

50-499 kg

US$6.28

500-999 kg

US$6.08

1,000-49,999,999 kg

US$4.33

50,000,000+ kg

Sample price:US$6.50/kg.Request sample

Product profile

Customization

Available

Raw Material

Silicone Rubber

Material

Silicone Rubber

Model NO.

GTSIL-T15

Appearance

Liquid

Form

White Liquid Colloid + Transparent Liquid

Component

Part a + Part B (Two Component)

Application

Mold Making

Mixing Ratio

100:2, 100:3, 100:5

Customiation Service

Color, Package

Hardness Shore a

14-16 Shore a

Viscosity - Cps

12000-16000

Shrinkage - %

Around 0.2%

Free Samples

Yes

Certification

RoHS, Reach, MSDS, Safe Transport of Goods by Sea/

Tear Strength - Kn/M2

15-18

Tensile Strength - MPa

3.5-5.5

Elongation - %

400-500%

Shipment

by Air, by Sea, by Train

Transport Package

1kg/Drum, 5kg/Drum, 20kg / Drum 25kg/Drum

Specification

liquid silicone rubber

Trademark

Gangtian

Origin

Dongguan, Guangdong

HS Code

3910000000

Production Capacity

600 Tons Per Month

Key features

Adjustable Color & Package: Color and package are customizable to meet specific client requirements.

Low Shrinkage Rate: Features around 0.2% shrinkage for high-precision mold replication.

Long Shelf Life: Maintains stability with a shelf life of up to 18 months.

High Tear Strength: Offers 15-18 KN/m2 tear strength for durable mold usage.

Excellent Fluidity: Low viscosity (12000-16000 Cps) ensures easy mixing and pouring.

Multi-Industry Application: Ideal for art, industrial prototypes, resin, wax, and plaster casting.

Chemical Resistance: Resists heat, acid, alkali, and aging for long-term performance.

Fast Sample Delivery: Samples shipped within 1-3 days after payment receipt.

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: ≤5.99h 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.

Product Q&A

Q:What is the mixing ratio for this silicone rubber?

The mixing ratio is 100:2, 100:3, or 100:5 depending on the specific model and application requirements.

Q:Can the color of the silicone rubber be customized?

Yes, the color is adjustable and customization services for color and package are available.

Q:What is the recommended catalyst addition percentage?

We recommend adding no more than 2% catalyst for condensation cure silicone rubber to ensure optimal operation time and strength.

Q:Why does the silicone mold appear dry outside but wet inside?

This is because condensation silicone rubber solidifies by absorbing moisture. To fix this, add 0.05% water and stir briefly at low speed before use.

Q:What causes poor tear strength in silicone molds?

Common causes include adding too much silicone oil, using excessive catalyst (more than 5%), or using the mold prematurely before the recommended 24-hour curing period.