Why does the mold appear oily?

The silicone itself does not emit oil. Oiliness is caused by adding composite silicone oil (mixed with white mineral oil) during operation, as white mineral oil is a petrochemical product.

Why does the silicone mold have traces, streaks, and unevenness on the surface?

This happens if the original model is not smooth or polished, or if the release agent was not applied evenly. The mold will reflect the imperfections of the original object.

What are the wonderful usages of mold silicone?

It is widely used in toy, gift, furniture, character reproduction, building decoration, resin crafts, candle making, plastic toys, gypsum crafts, glass products, and sculpture industries.

Room Temperature Vulcanization RTV Addition Cured Silicone for Making Rounded Triangle Silicon Mold

Name: Room Temperature Vulcanization RTV Addition Cured Silicone for Making Rounded Triangle Silicon Mold
Brand: Dongguan gangtian polymer materials Co.Ltd.
SKU: 2009142755

Guangdong, ChinaDongguan gangtian polymer materials Co.Ltd.

US$7.88

200-999 kg

US$6.68

1,000-4,999 kg

US$6.38

5,000-9,999,999 kg

US$4.88

10,000,000+ kg

Sample price:US$7.68/kg.Request sample

Product profile

Customization

Available

Material

Silicone

Application

Household, Medical, Industrial, Agricultural, Mold Making or Silicone Material

Model NO.

GTSIL-P0 ~ GTSIL-P65

Certification

ISO, FDA, REACH, RoHS

Component

Part a + Part B (Two Component)

Mixing Ratio

1:1, 10:1, 9:1

Customiation Service

Color, Package

Hardness Shore a

00-65 Shore a

Shrinkage - %

Below 0.1%

Free Samples

Yes

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

Food Grade Certification: FDA, REACH, and RoHS certified for safe use in food, medical, and baby products.

Ultra-Low Shrinkage: Shrinkage rate below 0.1% ensures high precision in mold replication.

Wide Hardness Range: Available in 00-65 Shore A hardness to suit various mold applications.

Long Shelf Life: Stable quality with a shelf life of up to 18 months.

Customizable Color and Package: Color and packaging can be customized to meet specific client requirements.

Excellent Detail Replication: Perfect fluidity and tension allow for capturing fine details in sculptures and prototypes.

High Temperature Resistance: Resistant against heat, acid, alkali, and aging for durable performance.

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

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: ≤7.20h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryDongguan Gangtian Polymer Materials Co., Ltd, established in 2011, is a leading manufacturer located in Dongguan City, Guangdong, China. The company specializes in RTV 2 Liquid Silicone Rubbers and other silicone-based products, with a robust production capacity exceeding 500 tons per month. They are ISO9001:2015 certified, indicating a commitment to quality management systems. The company has been exporting since 2016, with 21% to 30% of total sales coming from exports. Their R&D team focuses on innovation, providing solutions to a global customer base and supporting the company's growth and reputation in the industry.

Supplier typeThe supplier is a manufacturer and a limited company, operating in the manufacturing industry in Dongguan, Guangdong, China.

CertificationsThe supplier holds an ISO9001:2015 certificate, demonstrating adherence to quality management standards.

After-Sales capabilityThe company emphasizes honesty in after-sales service, suggesting a commitment to customer support.

R&D capabilityThe company focuses on R&D and innovation, offering advanced technology solutions and enhancing performance.

Production capacityThe supplier has over 10 production lines and a significant annual production output, with monthly capacities exceeding 500 tons.

Client casesThe company serves hundreds of domestic and overseas customers, indicating a broad customer base.

Product Q&A

Q:Why could the silicone mold be reused only for a few times?

Common reasons include adding too much silicone oil which destroys molecular weight, adding excessive catalyst (over 2% for tin cure) which speeds up operation and reduces strength, or using the wrong hardness for the product design.

Q:Why does the silicone mold get burnt out?

This occurs when using unsaturated resin without demolding within 3 minutes, as the curing agent generates great heat. Our silicone rubber contains special materials to resist high temperatures.

Q:Why does the silicone mould appear to be dry outside but wet inside?

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

Q:Why is the tear strength of silicone molds weak?

Weakness is caused by adding too much silicone oil, adding excessive catalyst (recommended max 5%, ideally 2%), or using the mold prematurely before the recommended 24-hour curing period.

Q:Why does the mold silicone have poor tension?

Poor tensile strength results from adding large amounts of silicone oil to reduce viscosity, making the rubber too soft and reducing durability and mold turnover count.