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Viton - Rainbow Rubber

Viton . fluoroelastomer A Product of dupont Dow Elastomers FOR MORE RELIABLE Rubber . COMPONENTS AND SEALS SPECIFY. Viton FLUOROELASTOMERS. Reduce Lifetime Costs Cut Unscheduled Downtime Increase Temperature Capability Stand Up to Aggressive Fluids Comply with Tougher Regulations Seals, Rubber parts PROVEN PERFORMANCE SUPERIOR THERMAL STABILITY BROAD CHEMICAL COMPATIBILITY. Since its introduction in 1957, Viton has solved sealing Resisting damage from thermal upsets is important Because Viton is compatible with a very wide range l a s t l o n g e r w i t h Vi t o n and other problems in major industries: insurance against failure for seals and other components. of chemicals, fuels and solvents, it can reduce costs fluoroelastomers Aircraft and Aerospace Viton fluoroelastomers resist hardening and embrittle- through extended service life and reduced unscheduled Viton can help you reduce costs by preventing Automotive ment indefinitely in air at up to 204 C (399 F), and they downtime for seals and components.

Viton ® fluoroelastomer A Product of DuPont Dow Elastomers FOR MORE RELIABLE RUBBER COMPONENTS ANDSEALS…SPECIFY VITON FLUOROELASTOMERS é Reduce Lifetime Costs é Cut Unscheduled Downtime

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Transcription of Viton - Rainbow Rubber

1 Viton . fluoroelastomer A Product of dupont Dow Elastomers FOR MORE RELIABLE Rubber . COMPONENTS AND SEALS SPECIFY. Viton FLUOROELASTOMERS. Reduce Lifetime Costs Cut Unscheduled Downtime Increase Temperature Capability Stand Up to Aggressive Fluids Comply with Tougher Regulations Seals, Rubber parts PROVEN PERFORMANCE SUPERIOR THERMAL STABILITY BROAD CHEMICAL COMPATIBILITY. Since its introduction in 1957, Viton has solved sealing Resisting damage from thermal upsets is important Because Viton is compatible with a very wide range l a s t l o n g e r w i t h Vi t o n and other problems in major industries: insurance against failure for seals and other components. of chemicals, fuels and solvents, it can reduce costs fluoroelastomers Aircraft and Aerospace Viton fluoroelastomers resist hardening and embrittle- through extended service life and reduced unscheduled Viton can help you reduce costs by preventing Automotive ment indefinitely in air at up to 204 C (399 F), and they downtime for seals and components.

2 Broad compatibility sealing failures, extending maintenance intervals, Chemical Processing and Transportation endure thermal excursions to 315 C (599 F) (Figure 1). also increases product versatility to extend applications. handling more aggressive fluids and higher tempera- Off-Highway and Heavy-Duty Equipment And with the high-temperature capability of Viton , some Much more information is available about the perfor- tures, increasing safety, and meeting stringent Petroleum Refining and Transportation users can increase operating temperatures to improve mance of Viton with chemicals and fluids. The dupont environmental regulations. Major uses include bonded seals, radial lip seals, productivity or gain other advantages.

3 Dow publication, Fluid Resistance of Viton , can be With Viton , you can meet these needs with caulks, coatings, vibration dampeners, expansion joints, Viton delivers at low temperatures, too. Dynamic seal obtained from any dupont Dow Elastomers office listed performance proven by decades of service in gaskets, O-rings, piston seals, custom shapes, and stock applications for Viton have been successful at 40 C, on the back cover. harsh environments. rod and sheet. and in some cases, appropriately designed parts of Viton can still offer static sealing capabilities down to 160 C. PERMEATION RESISTANCE. REDUCE LIFETIME COSTS LEARN MORE ABOUT WHAT TO FIGHT EMISSIONS. Viton far outlasts nitriles and other general-purpose Viton CAN DO FOR YOU FIGURE 1: HEAT RESISTANCE OF Viton Even if high temperatures or aggressive fluids aren't This brochure contains extensive technical data and INDEFINITE involved, Viton may be specified because it has good elastomers.

4 It allows you to extend service intervals information to show what Viton can do for you. It's all 10,000 resistance to permeation. In automotive, chemical and stretch maintenance dollars. here: data confirming superior thermal, chemical and >3,000 Hrs. processing and other industries, Viton helps control Hours of Service >1,000 Hrs. CUT UNSCHEDULED DOWNTIME mechanical performance, and comparisons with other fugitive emissions to meet Clean Air Act requirements. 1,000. Viton protects against unscheduled downtime because elastomers. Basic information is included to help you >240 Hrs. select the best type of Viton for your application, TABLE 1: PERMEATION RATES FOR SELECTED ELASTOMERS, Sealing components of it provides increased reliability.

5 You can extend war- 100 NYLON 12 AND FLUOROPOLYMERS.*. Viton resist chemical ranty periods with greater confidence. along with examples of economic analyses. >48 Hrs. attack and permeation Average Permeation Rate for ASTM. Standard Fuels, (g x mm) (m2 x days). to help cut emissions and increase safety. INCREASE TEMPERATURE CAPABILITY 0 204 C 232 C 260 C 287 C 315 C Material Fuel C 90% Fuel C, 85% Fuel C, 15% Fuel C, 400 F 450 F 500 F 550 F 600 F 10% 15% 85%. Ethanol Methanol Methanol In many applications, Rubber parts are stressed by Test Temperature NBR (33% ACN) 669 1028 1188 264. accidental temperature excursions as well as by HNBR (44% ACN) 230 553 828 211. increases in operating temperatures designed to What's more important, Viton retains good performance Fluorosilicone 455 584 635 261.

6 Increase production. In some situations, Viton can in fluids at elevated temperatures. Figure 2 compares the Nylon 12 24 83 90. serve continuously at 204 C (399 F) with excur- performance of Viton and other elastomers in a standard Viton GLT 14 60 149. sions to 315 C (599 F). SAE/ASTM test that measures volume swell in hot oil. Viton B70 32 95. Viton A200 36 55. A swell of more than 30% is usually unacceptable. Viton GFLT 14 11. STAND UP TO AGGRESSIVE FLUIDS Viton B200 12 Viton performs well in a wide range of aggressive fluid Viton GF FIGURE 2: HEAT AND OIL RESISTANCE OF SPECIALTY Tefzel ETFE 1000LZ environments. Systems can tolerate changes in fluids ELASTOMERS (ASTM D2000/SAE J200) Teflon PFA 1000LP and have more versatility for broader application.

7 300 C Teflon FEP 1000L KALREZ . 275 C * Mathematically normalized to 1 mm thicknesses using data from tests described C O M P LY WITH TOUGHER REGULATIONS in ASTM E96-53T. Viton in O-rings and other parts 250 C. Viton . Environmental regulations have raised the stakes for extends maintenance intervals 225 C. Heat Resistance leaks, spills and emissions. Viton helps guard against for heavy-duty equipment. SILICONE. 200 C FLUOROSILICONE Table 1 shows permeability to standard ASTM fuels for these problems and increases safety for workers and VAMAC . 175 C general purpose and specialty types of Viton and several plant neighborhoods. 150 C other materials. Other information about types of Viton Specialty Elastomers BUNA-N NITRILE.

8 125 C is given on page 5 in Selecting the Type of Viton That's 80 60 40 20 0 Best for You.. % Volume Swell in #3 Oil 2 3. TABLE 2: COMPARISON OF ELASTOMER PROPERTIES* SELECTING THE TYPE OF Viton . TABLE 3: RELATIVE CHEMICAL COMPATIBILITY AND MECHANICAL. Ethylene Buna-N Fluoro- THAT'S BEST FOR YOU PROPERTIES OF Viton FLUOROELASTOMERS. Common Name Neoprene Propylene Nitrile VAMAC Silicone silicone Viton KALREZ . Viton General Use Viton Specialty We've developed many types of Viton to meet specific Family Types Family Types ASTM D1418 EPM, MQ, VMQ. Designation CR EPDM NBR AEM PVMQ FVMQ FKM FFKM end-use and processing needs. Table 3 shows how differ- Chemical Environment A B F GB, GF GLT GFLT. GBL. ASTM D2000 ent types of Viton compare in chemical resistance and Automotive and aviation fuels 1 1 1 1 1 1 1.

9 Designation BC, BE CA, DA BG, BK EE, EP FE, GE FK HK HK+. mechanical properties. Automotive fuels oxygenated Service Temperature with MEOH, ETOH, MTBE, etc. NR 2 1 2 1 NR 1. Selecting the type that best meets your needs is impor- Max. Continuous Engine lubricating oil, SE and SF 2 1 1 1 1 1 1. Service Temperature 105 C 150 C 121 C 150 C 230 C 175 C 204 C 316 C tant, but it isn't complicated, and help is available from Engine lubricating oil, SG and SH 3 2 1 1 1 2 1. Low Temperature Properties (Tg) 50 C 54 C 30, 25 C 16 C 125, 85 C 65 C 30, 17 C 8 C. dupont Dow Elastomers. The general purpose types Aliphatic hydrocarbon process fluids, chemicals 1 1 1 1 1 1 1. Chemical Compatibility** differ primarily from the specialty types in chemical Aromatic hydrocarbon process Lubricating Oils 2 4 1 1 4 1 1 1 resistance.

10 In the specialty family, the choice is among fluids, chemicals 2 2 1 1 1 2 1. Fuel Oils 2 4 1 1 4 1 1 1 four types that are tailored for superior fluid resistance, Aqueous fluids, steam, mineral acids 3 2 2 1 1 1 1. Hydraulic Oils 2 4 1 1 2, 3 1 1 1 low-temperature performance or combinations of Compression and Fireproof Hydraulic Fluids 2 1 3 4 3 4 4 1 low-temperature performance these properties. Vegetable Oils, Animal Fats 2, 3 2, 3 1 1 1, 3 1 1 1 Resistance to compression set 1 2 2 2 3 2 2. Gasoline (high octane) 3, 4 4 1, 2 3 4 1 1 1 Each type of Viton is available in a number of grades. Low-temperature flexibility 2 2 3 2 3 1 1. Kerosene 2 4 1 2 4 1 1 1 The grade to be used for a specific application is selected Key: 1 = Excellent 2 = Very Good 3 = Good NR = Not Recommended Aromatic Hydrocarbons 4 4 2, 4 4 4 2, 3 1 1 for manufacturability as well as performance.


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