What are the common applications for this electronic potting compound?

It is especially developed for electronic potting and encapsulating applications, such as electronic components, marketing tools, and equipment.

Why might a silicone mold get burnt out during use?

This often happens when using unsaturated resin materials that generate heat. You must demold the product within 3 minutes to avoid burning.

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.

What causes weak tear strength in silicone molds?

Weak tear strength is often caused by adding too much silicone oil or too much catalyst (more than 2-5%). It can also result from using the mold prematurely.

What is the lead time for samples and mass production?

Samples can be shipped in 1-3 days after payment. Mass production orders normally take 3-7 days after payment.

Waterproof and Moistureproof RTV Silicone for Electronics

Name: Waterproof and Moistureproof RTV Silicone for Electronics
Brand: Dongguan gangtian polymer materials Co.Ltd.
SKU: 2009648685

Guangdong, ChinaDongguan gangtian polymer materials Co.Ltd.

US$6.68

50 kg

Sample price:US$1.00/kg.Request sample

Product profile

Customization

Available

Raw Material

Silicone

Material

Silicone Rubber

Model NO.

TE10, TE15, TE50

Appearance

Color Is Customized

Form

Liquid Rubber

Component

Part a + Part B (Two Component)

Mixing Ratio

10:1, 100:3 or Others

Customiation Service

Color, Package

Hardness Shore a

10, 15, 50

Free Samples

Yes

Certification

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

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

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

Excellent Electrical Insulation: High dielectric strength (>25 kV/mm) and volume resistivity (>1.0x10^14 Q.cm) ensure safety.

Superior Heat Resistance: Good thermal conductivity (>0.2 W/m.K) and fire resistance (UL94V1) protect electronics.

Flexible and Easy to Apply: Features flexible fluidity for easy pouring or machine injection with strong adhesion.

Waterproof and Dustproof: Provides excellent protection against water, dust, and aging for electronic components.

Long Shelf Life and Stability: Good shelf-life with perfectly cured state achieved within 24 hours for reliable performance.

Multiple Hardness Options: Available in various Shore A hardness levels (8-50) to suit different application needs.

Certified Quality and Safety: RoHS, REACH, MSDS certified and safe for sea/air transport, ensuring regulatory compliance.

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: ≤6.01h 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 are the main features of this RTV silicone?

It offers flexible fluidity for easy pouring, strong adhesion, good heat resistance, excellent insulation, and is waterproof, dustproof, and aging proof.

Q:Is the color of the silicone customizable?

Yes, the color is customized. Part A can be gray, red, or black liquid colloid, and Part B is transparent or yellowish.

Q:What is the mixing ratio for this two-component silicone?

The standard mixing ratio is 10:1 by weight. Other ratios like 100:3 or others are also available upon request.

Q:How long does it take for the silicone to cure?

It is basically cured in 3 hours and perfectly cured in 24 hours. The working time is typically 60-120 minutes.

Q:What certifications does this product have?

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