Why does silicone rubber produce many bubbles after adding curing agent?

This is a normal physical phenomenon. The liquid produces a large number of bubbles during mixing, so it must undergo vacuum exhaust bubble treatment.

High Adhesion Clear RTV-2 Silicone Rubber for Electronics Applications

Name: High Adhesion Clear RTV-2 Silicone Rubber for Electronics Applications
Brand: GUANGZHOU OTT NEW MATERIALS CO., LTD.
SKU: 1977021685

Guangdong, ChinaGUANGZHOU OTT NEW MATERIALS CO., LTD.

US$8.41-10.66

100 kg

Sample price:US$11.00/kg.Request sample

Product profile

Customization

Available

Raw Material

Synthetic Rubber

Material

Silicone Rubber

Model NO.

OTT-D8125

Appearance

Liquid

Form

Liquid Rubber

Hardness

25 Shore a

Color

Transparent

Mix Ratio

1:1

Shelf Life

18months

Advantages

Waterproof

MOQ

1kg

Delivery Date

3-5days

Transport Package

Plywood Pallet

Specification

5kg, 20kg, 25kg, 200kg, 1000kg drum

Trademark

OTT Silicone

Origin

Guangzhou

HS Code

3910000000

Production Capacity

600000

Key features

High Adhesion & Transparency: Ensures seamless visual inspection and robust protection for electronic components.

Environmentally Friendly Formula: Odorless, non-toxic, and generates no harmful by-products during use.

Low Viscosity & Self-Leveling: Allows easy pouring and smooth application for precise results.

Superior Electrical Properties: Ideal for sealing and waterproofing electrical and electronic devices.

Wide Temperature Resistance: Withstands extreme temperatures, corrosion, moisture, and mildew effortlessly.

Flexible Curing Options: Cures at room temperature or can be accelerated with heating for faster processing.

Minimal Shrinkage: Achieves almost zero shrinkage for precise and accurate molding results.

Long Shelf Life: Guaranteed 18-month shelf life in original unopened packaging.

Company profile

GUANGZHOU OTT NEW MATERIALS CO., LTD.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2022-07-27 CertifiedNearest Port: Shenzhen Port, Guangzhou PortAverage Response Time: ≤8.41h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryGuangzhou OTT New Materials Co., Ltd. is a China-based limited company established in 2014, operating in silicone and related chemical materials. It reports five production lines, a 1,700 m² manufacturing plant, broad product coverage, exports representing 90% of total sales, and stated peak- and off-peak-season fulfillment within 15 working days. The supplier holds ISO 9001:2015 certification and describes technical support, after-sales service, and silicone-material innovation capabilities. However, the available information indicates a relatively small organization of 17 employees, fewer than five quality-control staff, and limited documented customer-trade evidence. Financial strength, customization performance, and the depth of customer cases cannot be conclusively assessed from the provided data.

Supplier typeThe supplier is identified as Guangzhou OTT New Materials Co., Ltd., a China-based limited company operating in chemicals and silicone materials. Its listed products include architectural-restoration silicone and mold-making silicone, while its broader product keywords cover multiple liquid, RTV, cured, and specialty silicone products.

CertificationsThe supplier reports holding an ISO 9001:2015 certificate, providing explicit evidence of a certified quality-management system. No other certifications are stated in the provided information.

After-Sales capabilityThe supplier states that three doctoral senior researchers and 12 professional engineers support quality improvement, product development, innovation, and after-sales service. It also explicitly claims to provide technical solutions, after-sales service, and ongoing technical support, although no service-performance metrics or response-time data are provided.

R&D capabilityThe supplier explicitly reports top technology in condensation and addition-cured silicone in China and identifies doctoral researchers and professional engineers supporting new-product development and innovation. Its stated range of related silicone materials further supports technical breadth, though no independently verified innovation results are provided.

Production capacityThe supplier reports five production lines, a 1,700 m² manufacturing plant, and order fulfillment within 15 working days in both peak and off-peak seasons. Its product scope is broad and export sales are stated to represent 90% of total sales, but the small total workforce of 17 employees and fewer than five quality-control staff indicate that operational scale should be verified for large-volume requirements.

Product Q&A

Q:What silicone products do you make?

We produce liquid silicone, silicone rubber, and silicone oil. Due to different silicone molds, our silicone has varying viscosity, hardness, and density to meet client requests.

Q:Do you offer free samples?

Yes, we can provide samples for testing.

Q:How is quality controlled in your factory?

We have a professional QC team to control quality during production. All goods are 100% inspected before shipment.

Q:How to remove bubbles during mold making?

After mixing liquid silicone with the curing agent, put the material into a vacuum machine to remove the bubbles.

Q:How to get a good silicone mold that lasts longer?

Choose the right liquid silicone for your product, do not use silicone oil in mold making as it makes the mold too soft, and wait 2 hours after the mold is finished for full curing.