Hao Seal provides various types of rubber seals, including O-rings, star rings, diaphragms, washers, U-rings, V-rings, rubber bellows, wire harness seals, rubber balls, and rubber-metal bonding parts.

Our rubber materials come from mainstream suppliers in the industry:

For example: Chemours, Solvay, DAIKIN, Dupont, Dow Corning, Shin Etsu, Arlanxeo, Nippon Zeon, Bayer-polysar, Toshiba, etc.

Environmentally friendly materials meet standards

1、ROHS: Hao Seal's sealing products are manufactured in compliance with RoHS regulations (2011/65/EU and 2000/53/EU) and do not use cadmium (Cd), lead (Pb), mercury (Hg), hexavalent chromium (Ct6+), PBB, PBDE, DEHP, BBP, DBP, DIBP

2、REACH: All sealing products manufactured by Hao Seal comply with REACH requirements and meet the SVHC<0.1% requirement.

3、ELV: Hao Seal's sealing products are in compliance with the EVL requirements for chemical testing of complete vehicles and components: GB/T-30512 banned substances and EU End-of-Life Vehicles Directive 2000/53/EU

Hao Seal Statement: All of our seal products comply with ROHS, REACH and ELV regulations requiring SVHC < 0.1%

The main materials of our rubber seals are:

1、Perfluoroelastomer FFKM

     Tecnoflon® Series FFKM

2、Fluoroelastomers FKM/FPM:

     Viton™ Fluoroelastomer Series

     Tecnoflon® Fluororubber Series

     DAI-EL™ Fluororubber Series

     AFLAS® Fluororubber Series

3、Fluorosilicone (FVMQ)

4、Silicone Rubber (VMQ)

5、Ethylene Acrylate Rubber AEM

6、Polyacrylate rubber ACM

7、HNBR (Highly Saturated Nitrile)

8、EPDM

9、Nitrile ( NBR, BUNA-N )

10、Neoprene CR

11、ECO (Epichlordphydrin) ( Hydrin )

12、Polyurethane elastomer PU, AU, EU

Operating temperature

This service temperature range is for reference only.

In actual use environment, some compounds may not reach the highest temperature in this table, but they can still reach the highest temperature instantaneously or in a short time.

Oil resistance recommendation table