Why do bubbles form after adding the curing agent?

This is a normal physical phenomenon where mixing creates bubbles. You must use vacuum exhaust treatment to remove them.

What is the shelf life of the silicone rubber?

The shelf life of the product is 18 months when stored properly.

What is the minimum order quantity (MOQ)?

The minimum order quantity is 100 kgs.

RTV-2 Silicone Rubber with 3% Catalyst for Molds Making

Name: RTV-2 Silicone Rubber with 3% Catalyst for Molds Making
Brand: GUANGZHOU OTT NEW MATERIALS CO., LTD.
SKU: 1990491105

Guangdong, ChinaGUANGZHOU OTT NEW MATERIALS CO., LTD.

US$4.50-6.20

200 kg

Sample price:US$6.20/kg.Request sample

Product profile

Customization

Available

Material

Organic Silicone

Application

Industrial, Agricultural, Mold Making

Model NO.

OTT-S825

Certification

ISO

Mixing Ratio

100:3, 100:2, 100:5

Working Time/Pot Life

30~50min

Curing Time

3~4h

Shelf Life

18 Months

MOQ

100kgs

Delivery Term

Fob/CNF/CIF/EXW/DDU

Delivery Time

3-5days

Hardness

15A/25A Hardness

Transport Package

Pallet

Specification

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

Trademark

OTT

Origin

China

HS Code

39100000

Production Capacity

8000kg/Day

Key features

Low Shrinkage Rate: Shrinkage is almost zero, below 0.2%, ensuring high precision in mold reproduction.

Customizable Parameters: Viscosity, hardness, working time, and curing time can be adjusted according to requirements.

Excellent Physical Strength: Features excellent tension and tear strength for durable and long-lasting silicone molds.

High Fluidity: Amazing fluidity allows for easy operation and captures complex designs and intricate patterns.

Fast Delivery: Standard delivery time is 3-5 days, with peak and off-season lead times within 15 workdays.

Non-Toxic Formula: Part B catalyst is non-toxic and odorless, ensuring safety during the mold-making process.

Versatile Applications: Suitable for artificial stones, gypsum crafts, resin works, sculptures, and various decorative items.

OEM/ODM Support: We offer OEM and ODM services to meet specific client needs and custom formulations.

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: ≤9.39h 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. Our silicone viscosity, hardness, and density vary to meet specific client requests for different mold applications.

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 quality control during production?

We have a professional QC team that controls quality throughout 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 mixture in a vacuum machine to remove the bubbles effectively.

Q:How can I make my silicone mold last longer?

Choose the right liquid silicone for your product, avoid using silicone oil as it softens the mold, and allow the mold to fully cure for at least 2 hours after finishing.