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An O-Ring is simply a circular sealing ring with a round cross section. When compressed between mating surfaces, an O-Ring blocks the passage of liquids or gases.

TUICO has developed over 250 material compounds, that meet various international standards, such as ASTM, JIS, DIN,... We are also able to supply O-Rings to FDA, NSF, KIWA, WRAS,.... Available materials : FKM, Dupont Viton, Silicone, EPDM, NBR, ACM, HNBR, Neoprene, Polyurethane, .... for wide range of application, which requires low-high temperature (-65°C to +250°C), low compression set, oil & fuel resistance,...

TUICO has available molds for Aerospace Standard AS568 , Japan JIS (G,P,S) Oring sizes and is developing thousands of molds for European metric Oring sizes and non-standard Orings for specific requests.

With 15 sets of CNC machines running 24hrs per day, average 300sets of new molds are made each
month. We are able to make Orings as
- 0.5 ~ 60mm (.020 ~2.340 inch) for the cross section
- 3,500~4,000mm (118"~157" inch) large for ID
- Surface treatment : Molycoat, dull (by stone wash), lubricated,...
- Various colors
- Hardness range : 40 ~ 90 shore A
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