HNBR Mechanical O Ring Cord Professional Silicone Oil / Greases
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 |
