Why do bubbles form when adding the curing agent?

This is a normal physical phenomenon. Mixing introduces bubbles, so vacuum exhaust treatment is required to remove them.

What is the shelf life of the silicone rubber?

The shelf life is 18 months when stored in cool, dry places with the original package unopened.

Softer Hardness 1: 1 RTV2 Liquid Silicone Rubber for Resin Mold Making

Name: Softer Hardness 1: 1 RTV2 Liquid Silicone Rubber for Resin Mold Making
Brand: GUANGZHOU OTT NEW MATERIALS CO., LTD.
SKU: 1982518765

Guangdong, ChinaGUANGZHOU OTT NEW MATERIALS CO., LTD.

US$6.88-8.60

1 kg

Sample price:US$12.00/kg.Request sample

Product profile

Customization

Available

Material

Organic Silicone

Application

Industrial

Model NO.

OTT-J805

Certification

ISO, FDA

Mixing Ratio

1:1, 10:1

Working Time/Pot Life

30~50min

Curing Time

3~4h

Hardness

0~50shore a

Type

Liquid

Transport Package

20kg/Drum, 25kg/Drum or 200kg/Drum

Specification

Liquid Silicone

Trademark

OTT

Origin

Guangzhou

HS Code

39100000

Production Capacity

8000kg/Day

Key features

Food Grade Certification: Platinum cured silicone rubber certified by FDA and ISO for safe use.

High Tear Resistance: Superior tear strength ensures durable molds for complex replica parts.

Excellent Fluidity: High flowability allows for precise duplication of intricate details.

Customizable Hardness: Available in 5-50 Shore A hardness options to meet specific needs.

Fast Curing Time: Cures in 3-5 hours at room temperature for efficient production.

Chemical Resistance: Resistant to acid, alkali, and high temperatures for long-term use.

OEM/ODM Service: Professional manufacturer offering custom OEM and ODM solutions.

Quick Delivery: Standard delivery within 4-6 days after payment confirmation.

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: ≤9.20h 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 types of silicone products do you manufacture?

We produce liquid silicone, silicone rubber, and silicone oil. We adjust viscosity, hardness, and density to meet specific client requirements for different molds.

Q:Do you provide free samples for testing?

Yes, we can provide free samples for clients to test the product quality before placing an order.

Q:How do you ensure product quality?

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

Q:How can I remove bubbles during mold making?

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

Q:How can I extend the lifespan of my silicone mold?

Choose the right silicone for your product, avoid using silicone oil as it makes molds too soft, and wait at least 2 hours after molding for full curing.