The resistance to oxidative degradation depends on many factors, including chemical composition, molecular weight, crosslink density, and type of cross-links. Diene elastomers that have electron-donating groups attached to the diene are usually the least stable rubbers (NR, IR), i.e. they have poor heat, ozone and UV resistance, whereas elastomers with a low nuer of double bonds (HNBR, IIR
RUBBER COMPOUNDS Abbreviation Chemical Deﬁnition EP, EPR, EPT, EPDM Ethylene Propylene Diene Rubber Material Selection Guide EPDM or Ethylene Propylene Good to Excellent Compression Set Poor to Excellent Impact Resistance Very Good Tear Resistance Fair to Good Durometer or Hardness Range Tensile Strength Range Elongation (Range %) Abrasion Resistance Adhesion to …
CHEMICAL RESISTANCE CHART RATINGS — CHEMICAL EFFECT A — No effect—Excellent B — Minor effect—Good 2. Polypropylene — Satisfactory to 72° F. C — Moderate effect—Fair D — Severe effect—Not recommended FOOTNOTES 1. P.V.C. — Satisfactory to 72° F. 3. Polypropylene — Satisfactory to 120° F. 4. Buna-N — Satisfactory for “O” Rings 5. Polyacetal — Satisfactory to 72
Rubber Hose Chemical Resistance Chart Page 4 Chemical Tube compounds Temp °F Natural Rubber (NR) SBR Butyl (IIR) EPDM Neoprene (CR) Hypalon (CSM) Nitrile (NBR) Crosslinked Polyethylene (XLPE) Flurocarbon (Viton/ Fluorel) Flurocarbon Plastic (Teflon/ TFE/FEP) Modified Cross-link UHMWP Air 180 F 70 X E E E E E E X E E E E Air 200 F 70 X C E E G X G X E E E E Air, …
Ethylene-Propylene rubber materials are characterized by excellent chemical, steam and thermal resistance for a relative low cost. Often used in food, water, beverage and agricultural systems, hydraulic, braking, steam appliions. Not recomended for use with oils and fuels. EP can be formulated in a variety of ways for use in a wide range of demanding specialty appliions.
O-Ring Fluid Compatibility Guide. The following charts show the resistance of different chemicals to Perfluoroelastomer, Viton® Extreme ETP, Aflas® TFE/P, Viton® FKM Fluoroelastomer, EPDM P.C., Buna-n, Silicone and Fluorosilicone. These charts are to be taken as a general reference only.
Chemical Resistance Chart . PVC . Polyvinyl Chloride (PVC) is biologically and chemically resistant. PVC can be formulated to meet fire resistant and anti-static r equirements. Examples: 2 -1121, 2-1151, 2-1201 . RAV . Rubber and Vinyl (RAV), also known as RMV, is a refined PVC formulation. If offers high resistance to fats, oils and chemicals. It is a popular compound for use in food
Chemical resistance data from immersion tests cannot be unconditionally applied to thermoplastic piping components subjected to continuous or frequent mechanical or thermal stresses. When the pipe will be subject to a continuous applied mechanical or thermal stress or to coinations of chemicals, testing that duplies the expected field conditions as closely as possible should be performed
Rubber). HNBR polymers are high temperature and oil resistant elastomers. HNBR compounds are formulated to meet demanding appliions and environments with a wide operational temperature range. CHEMISTRY AND MANUFACTURING PROCESS The material itself is a derivative of nitrile rubber, which is hydrogenated in solution using precious metal alysts. The basic structure of an HNBR …
2. Service Conditions: A rubber compound usually swells when exposed to a chemical. Within a given percent of swell, a hose tube may function satisfactorily if the hose is in a static condition, but may fail quickly if the hose is subject to flexing. 3. The Grade or Blend of the Rubber Compound: Basic polymers are sometimes mixed or blended to enhance a particular property for a specific
The degree of resistance of a rubber compound to a specific chemical depends on many variables such as temperature, concentration, length of exposure, stability of chemical, etc. For a specific compound, many grades of polymers are available which can alter the compound’s chemical resistance. When in doubt Before using a specific product, contact your local Continental ContiTech …
Chemical Resistance and Fluid Compatibility, Additionally, these elastomers are commercially available in different grades of polymer and can vary in compound ingredients—different grades and compounds within a polymer class can have significantly different performance characteristics. 100 °C (212 °F) was chosen as the baseline comparison for the elastomers in this guide. Chemical
chemical environments and temperatures above 600°F. Markez® is a high performance perfluoroelastomer compound that offers a broad chemical and temperature resistance up to 600°F. For demanding sealing appliions, in various industries, like Petrochemical and where harsh solvents are required. The temperature range is ‐5°F to 600°F.
appliance, and chemical fields. With over half a century of proven performance, Oil and chemical resistance are also essentially unaffected by elevated temperatures. Compounds of Viton™ remain substantially elastic indefinitely when exposed to laboratory air oven aging up to 204 °C (399 °F) or to intermittent exposures up to 316 °C (601 °F). High temperature service limits are
Outstanding resistance to chemical attack by most chemicals and solvents. It is a self-lubriing compound and has a temperature rating of 20ºF - 400ºF [--29ºC - 204ºC]. [ marine atmosphere and exhibits exceptional resistance to a . ELASTOMER. VITON® [Fluorocarbon Rubber abv. FPM]
* compounds not in alogue. Ask Parker for right solution WARNING The service life of rubber hoses is not endless. Consequently the user must periodically check the suitability of a rubber hose for the intended applica-tion, particularly in the presence of dangerous or polluting chemical products or when using the hose at elevated pressures
The Grade or Blend of the Rubber Compound: Basic polymers are sometimes mixed or blended to enhance a particular property fo a specific service. As an example, the nitrile used as the tube material for Parker aircraft fueling hose varies in its makeup from the nitrile used in the tube of Day-Flo® Special Purpose hose. Consequently, the reaction to a particular chemical may therefore be
ProMinent® Chemical Resistance List 5.0.1 ProMinent® Chemical Resistance List The data apply to standard conditions (20 °C, 1,013 ar). Concentration data are stated in weight percent, referred to aqueous solutions. If percentages are stated for the level of resistance, this level of resist ance is only valid up to this concentration. NOTE: The elastomers CSM (Hypalon
Our rubber chemical resistance chart will ensure that you can choose the correct elastomer for your appliion’s environment. For more information about individual rubber chemical resistance or for assistance with your material selection for your appliion, speak to our expert team at Martin’s Rubber .
chlorine bond of chlorobutyl rubber, resulting in compounds with faster cure rates that can utilize a wider range of vulcanization systems. As a result, bromobutyl provides an even higher level of co-curing compatibility with general-purpose elastomers than chlorobutyl rubber. EXXON™ star-branched bromobutyl rubber is a brominated copolymer of isobutylene and isoprene containing a polymeric
COMPATIBILITY CHART Chemical Natural Rubber SBR, GRS Butyl EPR, EPT, EPDM Buna-N, Nitrile, NBR Hydrin Neoprene Hypalon Urethane, Polyurethane Polysulfide Silicone Fluorosilicone Fluoro Elastomers LEGEND A - RECOMMENDED B - MINOR TO MODERATE EFFECT C - MODERATE TO SEVERE U - UNSATISFACTORY BLANK - INSUFFICIENT DATA Acetaldehyde C U A A U C C U C …
COMPOUND COMPATIBILITY RATING 1 - Satisfactory 2 - Fair (usually OK for static seal) 3 - Doubtful (sometimes OK for static seal) 4 - Unsatisfactory x - Insufficient Data AFLAS -4°C to 232°C (25°F to 450°F)* Neoprene -37°C to 107°C (-35°F to 225°F)* Polyacrylate -21°C to 177°C (- 5°F to 350°F)* Polyurethane -40°C to 82°C (-40°F to 180°F)* Butyl -59°C to 120°C (-75°F to 250°F
Rubber Chemical Resistance. The above recommendations are subject to certain qualifiions. When designers and engineers specify a rubber there needs to be an awareness that not all rubbers are equal: even the same type or brand of rubber can be subject to variations that will affect its chemical resistance. Rubber Grades. There are many different grades of synthetic rubber, and these rubbers
The chemical resistance guide has been compiled to assist in selecting chemical resistant materials. This information is intended is intended as a guide only. Many conditions can affect material chioices. Careful consideration must be given to temperature, pressure, amd chemical cocen-trations before a final material can be selected. The compound should be tested under actual service
Chemical Resistance Guide O-Ring Calculator Unit Converter Bellow Selector Rubber Profile Price Calculator Anti Vibration Selector. Acrylonitrile butadiene rubber (nitrile / NBR rubber ) Profile Price Calculator. Rubber Profile Profile Price Calculator. Nitrile/NBR Nitrile (often referred to as buna-N rubber or perbunan) is the most commonly used elastomer in the seal industry. Nitrile is a