Why does adding curing agent create many bubbles?

This is a normal physical phenomenon where the liquid produces bubbles during mixing; vacuum exhaust treatment is required.

RTV-2 Silicone Rubber for Craft Casting Liquid Silicone

Name: RTV-2 Silicone Rubber for Craft Casting Liquid Silicone
Brand: GUANGZHOU OTT NEW MATERIALS CO., LTD.
SKU: 1975794495

Guangdong, ChinaGUANGZHOU OTT NEW MATERIALS CO., LTD.

US$10.88

200 kg

Sample price:US$11.65/kg.Request sample

Product profile

Customization

Available

Material

Organic Silicone

Application

Industrial, DIY Art

Model NO.

OTT-J820

Certification

ISO, FDA, MSDS

Hardness

20 a Shore

Color

Translucent or Adjustable

Mix Ratio

1:1 or 10:1

Shelf Life

18months

Pot Life

20-40 Mins

Demold Time

4-6 Hours

Business

Factory Direct Sale

Sample

Available

Trade Term

EXW/CNF/CIF/Fob/DDU

Shipping

by Sea, by Air

Transport Package

Plywood Pallet

Specification

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

Trademark

OTT

Origin

Guangzhou

HS Code

3910000000

Production Capacity

600000

Key features

Food Grade Safety: Non-toxic and food grade certified for safe use in food molds and crafts.

Long Shelf Life: Maintains quality for 18 months when stored in cool, dry places in original packaging.

High Duplication Count: Supports 50 to 1000 duplications depending on product size and usage.

Fast Delivery: Ships within 4 to 6 days after payment confirmation.

Room Temperature Curing: Cures fully within 3 to 5 hours at 25 degrees Celsius without heat.

Low Shrinkage: Features 0.1% shrinkage rate for high precision replica details.

Adjustable Hardness: Available in Shore A 5 to 50 range to suit various molding needs.

Professional Support: 24-hour after-sales service and professional R&D team assistance.

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: ≤7.53h 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. Different molds require specific viscosity, hardness, and density to meet client requests.

Q:Do you offer free samples?

Yes, we can provide samples for testing purposes.

Q:How is quality controlled in your factory?

We have a professional QC team that inspects goods 100% before shipment.

Q:How to remove bubbles during mold making?

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

Q:How to get a long-lasting silicone mold?

Choose the right liquid silicone, avoid using silicone oil as it softens the mold, and wait 2 hours after finishing the mold for full curing.