English

AI translation, not reviewed by a native speaker. Chinese version

Contact

Tell us the substrate, the equipment duty and where the noise appears, and we will discuss the scope of verification.

Application enquiry

Become a distributor → Sales@griwecolor.com.cn

Samples are not shipped outside China. We are recruiting distributors outside China and agents in China. Send sales enquiries to Sales@griwecolor.com.cn and technical enquiries to Tech@griwecolor.com.cn.

Phone, mobile number or WeChat ID — at least one.

Process details (all optional)

We store your enquiry and notify the Sales or Technical team. Samples are not shipped outside China.

Privacy Policy

Or email us directly at Sales@griwecolor.com.cn Tech@griwecolor.com.cn

FAQ

  • What is Griwecolor Shanghai?

    Gelisiwei (Shanghai) Tech Co., Ltd. (格理斯威（上海）科技有限公司), established in 2019, uses German technology to manufacture water-based damping (sound-deadening) coatings, acoustic coatings and water-based fire-protection and thermal-insulation coatings in Songjiang, Shanghai. The coating range is sold in China and internationally as griwecolor Antiphon. It is not affiliated with Antiphon AB (Sweden).

  • How does a water-based damping coating reduce noise?

    Applied to thin metal panels, the viscoelastic coating converts vibration energy into heat, reducing structure-borne noise radiated by the panel. Airborne noise needs separate insulation or absorption measures.

  • Is the coating EN 45545 compliant?

    AN2-800 was tested to EN 45545-2:2013+A1:2015 and reached hazard level HL3, test report (2020) CL字第W1197号 (summary of the AN2-800 technical data sheet, 2023-06-14 edition; applies to AN2-800 only). For other grades contact Tech@griwecolor.com.cn.

  • Do you ship samples outside China?

    No. Free 1 kg samples are only available to customers in mainland China, freight collect. Overseas customers can send a technical or distributor enquiry.

  • Can I become a distributor?

    Yes. We are recruiting distributors outside China. Choose 'Become a distributor' at https://www.griwecolor.com.cn/en/contact/ or email Sales@griwecolor.com.cn.