High Temperature Hydraulic O Ring Strip Metric Excellent Chemical Resistance
Metric O-Ring Cord, can be used to make custom sizes. Can be "cold bonded" or "heat spliced and vulcanized" We stock the most popular "Buna-70" and "FKM-70" materials
Peculiarity Of O Ring Cord:
1) NBR O Ring Cord: Good chemical resistance to mineral oils and greases,hydraulic oils H, HL, HLP, non-inflammable hydraulic pressure fluids HFA, HFB, HFC to approx. +50°C and water to max. +80°C.
2) FKM O Ring Cord:
Good chemical resistance to mineral oils and greases, synthetic oils and greases,engine, transmission and ATF oils to approx. +150°C, fuels, non-flammable hydraulic pressure fluids HFD, aliphatic, aromatic and chlorinated hydrocarbons, water to max. +80°C, excellent resistance to weathering, ozone and ageing, very low gas permeability (and therefore excellent for vacuum application) and resistance to a wide range of chemicals.
3) EPDM O Ring Cord:
Good resistance to hot water and steam, detergents, caustic potash solutions, silicone oil and greases, many polar solvents, and many diluted acids and chemicals, along with a high level of ozone resistance. EPDM materials are totally unsuitable for use with all mineral oil products (lubricants, fuels).
4) Silicone O Ring Cord
Good resistance to water (up to 100 °C), aliphatic engine and transmission oils, animal and plant oils and fats.This material complies with Positive List 21 CFR 177.2600 FDA. VMQ is generally not resistant to fuels,
aromatic mineral oils, steam (short term up to 120 °C possible), silicone oils and greases, acids and alkaline compounds.
Cord stock is excellent for your metric custom size o-ring needs. Available in standard cross sections from 1mm to 20mm Available in Buna -70 and FKM -70 Metric sizes are also available.
Materials |
Materials & Temperature Ranges | Fluid Examples |
Suitable With | Not Suitable With |
Nitrile (NBR) -40ºC to 120ºC -40ºF to 248ºF | Petroleum Oils Hydraulic Oils Water | Brake Fluids Ketones Phosphate Esters Strong Acids (H2S) |
Hydrogenated Nitrile (HNBR) -40ºC to 150ºC -40ºF to 302ºF | Petroleum Oils H2S (10%) Water | Polar Solvents Brake Fluids Strong Acids |
Ethylene Propylene(EPDM) -50ºC to 150ºC -58ºF to 302ºF | Brake Fluids Water/ Hot Water Steam | Mineral Oils Ozone at High Temperatures |
Fluoroelastomer (FKM) -20ºC to 200ºC -4ºF to 392ºF | Petroleum Oils Silicone Oils Gasoline | Brake Fluids Ammonia Gas Steam |
Perfluoroelastomer (FFKM) -20ºC to 320ºC -4ºF to 608ºF | Most Media | Liquid Sodium & Potassium Fluorinated Solvents & Refrigerants |
Silicone (VMQ) -70ºC to 220ºC -94ºF to 428ºF | Vegetable Oil Water Ozone | Acids &Alkalis Hot Water & Steam (>120ºC) |
Neoprene (CR) -40ºC to 120ºC -40ºF to 248ºF | Ammonia Refrigerants Ozone | Aromatic Hydrocarbons Polar Solvents Toluene |
PTFE -200ºC to 280ºC -148ºF to 536ºF | Most Media | Fluorine Molten Alkali Metals Strong Oxidizing Agents |
Polyurethane (PU) -40ºC to 90ºC -40ºF to 194ºF | Most Petroleum Oils | Brake Fluids Hot Water Steam |
PEEK -70ºC to 260ºC -94ºF to 500ºF | Most Media | Hydrochloric, Nitric & Sulfuric Acids |
