OTT Silicone (RTV Liquid Silicone)
A Guangzhou manufacturer of RTV liquid silicone rubber products. Condensation and addition cure technologies. 16 insured employees.
RTV liquid silicone rubber, B2B presence confirmed, production photos pending.
RTV-2 Mould-Making Silicone Rubber
The company manufactures RTV-2 (room-temperature vulcanising, two-part) silicone rubber for mould making and mould casting. Both tin-cured (condensation) and platinum-cured (addition) formulations are available. Specify the master model material, mould size, required Shore A hardness, tear strength and number of casts expected.
Electronic Potting & Insulation Silicone
Electronic potting silicone rubber for waterproof insulation of circuit boards and electronic components. Specify the operating temperature range, dielectric requirements, cure profile and volume needed.
Pad Printing Silicone Rubber
Specialised silicone rubber for manufacturing printing pads used in pad printing (tampo printing). Specify pad shape, size, hardness and the substrate to be printed.
Life Casting & Specialty Silicone
Life casting silicone for prosthetics and body casting, plus insole and foot health silicone. The B2B platform also lists silicone resin powder as a diffusion agent for plastics and masterbatch. Confirm specific grades and compliance requirements with the company.
What the registry confirms, and what stays open.
Registry Verified — Guangzhou, Huadu District
The company is registered as 广州市一二三新材料有限公司, USCC 914401013043244182, with status “存续” (in operation) in Guangzhou. Company type: limited-liability company. Credit-code check digit verified. Division code 440101 = Guangzhou.
Founded July 2014 — 16 Insured Employees
The company was founded on 15 July 2014. 16 employees are enrolled in social insurance. The B2B platform lists 17 employees. This headcount is consistent with a small silicone rubber manufacturer focused on speciality formulations.
B2B Platform Presence — Gold Member & Audited Supplier
The company operates a storefront on Made-in-China.com (ott-silicone.en.made-in-china.com) as a Gold Member since 2022 with Audited Supplier status and SGS verification. The platform lists Guangzhou OTT New Materials Co., Ltd. with expertise in R&D for liquid RTV silicone.
Manufacturing Scope Confirmed
The registered business scope includes silicone and plastic products manufacturing. The industry classification is silicone and plastic products. This confirms manufacturing capability within the registered scope.
What was checked — and what the check found.
Registry data for this company has been verified via Chinese enterprise-data sources on 2026-09-30. The company is registered as in operation (存续) in Guangzhou, Huadu District. The company name 广州市一二三新材料有限公司 translates to Guangzhou OTT New Materials Co., Ltd. The registered business scope includes silicone and plastic products manufacturing. The company was founded in July 2014 with 16 employees enrolled in social insurance. The B2B platform data indicates 17 employees, consistent with the insurance data. The company has been a Gold Member on Made-in-China.com since 2022 with Audited Supplier and SGS verification status. No management-system certificate, product test report, workshop photograph or production capacity data has been supplied to ChinaMakersHub. Buyers should verify product certifications and quality systems directly with the company or via factory audit before placing orders.
An RTV silicone manufacturer in Guangzhou, 16 insured employees, B2B presence confirmed.
OTT Silicone is the ChinaMakersHub listing name for Guangzhou OTT New Materials Co., Ltd. (广州市一二三新材料有限公司), a company registered in Guangzhou, Huadu District, Guangdong Province. The company manufactures RTV liquid silicone rubber products using both condensation-cure and addition-cure technologies.
The company was founded on 15 July 2014. 16 employees are enrolled in social insurance. The B2B platform (Made-in-China.com) lists 17 employees, consistent with the insurance data. The company has been a Gold Member since 2022 and holds Audited Supplier status.
No product photos, certifications or production data have been supplied to ChinaMakersHub. The B2B platform storefront may have additional product information and photographs. All items are listed as open on this page.
Founded July 2014, registry verified September 2026.
Company Founded
Guangzhou OTT New Materials Co., Ltd. registered in Guangzhou, Huadu District.
Gold Member on Made-in-China.com
Became a Gold Member on Made-in-China.com B2B platform with Audited Supplier status.
Listed on ChinaMakersHub
Listed under silicone & plastics with registry verified. B2B platform presence confirmed. 16 insured employees confirmed. Product photos, certifications and production capacity data have been requested.
Who buys RTV liquid silicone from Guangzhou — and what to check.
Mould Makers & Prototyping Companies
Companies needing RTV-2 silicone rubber for mould making, model casting and rapid prototyping. Ask about tin-cure vs platinum-cure suitability for your application, tear strength, shrinkage rate and shelf life.
Electronics & LED Manufacturers
Manufacturers needing potting compounds for circuit board protection, LED encapsulation or sensor sealing. Confirm operating temperature range, dielectric strength, thermal conductivity and applicable standards (UL, RoHS, etc.).
Printing & Packaging Companies
Companies sourcing pad printing silicone for tampo printing pads. Confirm pad hardness, ink transfer efficiency, durability (number of prints) and minimum order.
Medical & Prosthetics Manufacturers
Companies needing life casting or body-safe silicone. Confirm biocompatibility testing (ISO 10993), skin-safe certification and specific Shore A hardness range for prosthetic and orthotic applications.
Sourcing guides for this category
The 27-Point China Factory Audit Checklist
Product Inspection in China Before Shipment: A Buyer's Guide
How to Request a Sample from a Chinese Factory (Without Getting Burned)
What Documents to Request From a Chinese Supplier Before Your First Order
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Frequently Asked Questions
Is this listing CMH-verified?
The registry has been verified: the company is registered and in operation in Guangzhou since July 2014 with 16 insured employees. A B2B platform presence has been confirmed (Gold Member since 2022, Audited Supplier). However, no certifications, product photos or production data have been supplied to ChinaMakersHub. The listing carries a registry-verified mark but production checks remain open.
What does OTT Silicone make?
The company manufactures RTV (room-temperature vulcanising) liquid silicone rubber using both condensation-cure (tin) and addition-cure (platinum) technologies. Product categories include mould-making silicone, electronic potting silicone, pad printing silicone, life casting silicone and silicone resin powder. For specific products, visit the B2B storefront or contact the company through ChinaMakersHub.
Does it export?
The company has a B2B platform storefront on Made-in-China.com with Gold Member and Audited Supplier status, indicating export capability. OEM/ODM services and sample products are listed as available. Confirm export terms, payment methods and certifications for your specific market.
How large is the factory?
16 employees are enrolled in social insurance. The B2B platform lists 17 employees. The factory address is in Huadu District, Guangzhou. No workshop photographs or independent production capacity figures have been supplied to ChinaMakersHub. Visit the company or arrange a factory audit for detailed production information.
Talk to OTT Silicone (RTV Liquid Silicone) directly.
State the silicone type (RTV-2 condensation, RTV-2 addition/platinum, pad printing silicone, electronic potting, life casting, insole silicone, etc.), Shore hardness, colour, application, quantity and any specific certifications required. For mould-making silicone, specify the master model material, mould size and required tear strength. Ask for the product catalogue, MOQ, sampling terms and production lead time before ordering.