Why do bubbles form when adding the curing agent?

This is a normal physical phenomenon where the liquid produces many bubbles during mixing. It must be treated with vacuum exhaust to remove them.

RTV2 Silicone Rubber for Molds Making for Concrete, Resin, Gypsum

Name: RTV2 Silicone Rubber for Molds Making for Concrete, Resin, Gypsum
Brand: GUANGZHOU OTT NEW MATERIALS CO., LTD.
SKU: 1983111665

Guangdong, ChinaGUANGZHOU OTT NEW MATERIALS CO., LTD.

US$4.55-12.22

1 kg

Sample price:US$8.00/kg.Request sample

Product profile

Customization

Available

Material

Organic Silicone

Application

Medical, Industrial, Agricultural

Model NO.

OTT Silicone

Certification

ISO, FDA

Color

as Requested

Shelf Life

18 Months

Shipping Term

by Sea, by Air

Usage

Mold Making

Delivery Term

EXW, Fob, CIF.etc.

Shrinkage

≤0.1%

Pot Life

Adjustable

Molding Method

Pouring / Brushing

Sample

Free

Transport Package

1kg, 5kg, 20kg, 25kg, 200kg Drum

Specification

Liquid Silicone

Trademark

OTT

Origin

China

HS Code

3910000000

Production Capacity

8000kg/Day

Key features

Wide Application Range: Suitable for concrete, resin, gypsum, jewelry, shoe soles, and rapid prototyping.

Low Shrinkage Rate: Ensures high precision with shrinkage as low as 0.1% for platinum cured series.

Adjustable Pot Life: Pot life ranges from 20 to 40 minutes at 25 degrees Celsius for flexible processing.

Free Sample Available: Customers can request free samples for testing purposes before bulk orders.

High Tear Strength: Offers excellent durability with tear strength up to 26 KN/m depending on model.

Rapid Delivery: Delivery time is within 4 to 6 days after payment confirmation.

Long Shelf Life: Product remains stable for 18 months when stored in original unopened packaging.

OEM and ODM Services: Customization options available for specific client requirements and branding.

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: ≤5.67h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

About Our Factory & Business Background

AddressFirst Floor Building A1 Tangkou 236 Industrial Zone, Tuanjie Village, Xinhua Street, Huadu District, Guangzhou, Guangdong, China

Plant Area1700 square meters

Number of Employees17

Registered Capital5,000,000 RMB

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW, DDU

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsRTV2 Liquid Silicone Rubber, Molding Silicone Rubber, Platinum Cured Silicone Rubber, Tin Cured Silicone Rubber, Pad Printing Silicone Rubber, Electronic Potting Silicone Rubber, Life Casting Silicone Rubber, Insole Silicone Rubber, Silicone Resin Powder

Production MachinesKneading Machine, Grinding Machine, Mixing Machine

R&D Engineers2 people

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2014-07-15

Main MarketsNorth America, South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia, Domestic

Number of Foreign Trading Staff5

Overseas Agent/BranchNo

Product Q&A

Q:What silicone products do you manufacture?

We produce liquid silicone, silicone rubber, and silicone oil. Different viscosities, hardness, and densities are available to meet client requests.

Q:Do you offer free samples?

Yes, we can provide free samples for testing purposes.

Q:How is quality controlled in your factory?

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

Q:How do I 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 can I get a silicone mold that lasts longer?

Choose the right liquid silicone for your product, avoid using silicone oil in mold making, and wait 2 hours after finishing the mold to ensure full curing.