OIL RESISTANT HOSES

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OIL RESISTANT HOSES

OIL RESISTANT HOSES There are 11 products.

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Hydrocarbon Silicone Hoses FKM - Fuel, Oil and Gasoline Resistance

What is a hydrocarbon silicone hose? A hydrocarbon silicone hose is a high-performance tube featuring an FKM (fluoroelastomer) inner layer resistant to permanent contact with gasoline, diesel, engine oils and all hydrocarbons. The REDOX bi-layer construction combines external VMQ silicone for thermal resistance -40°F to 392°F (-40°C to 200°C) with internal FKM impermeable to fuels, delivering 20X the lifespan of standard NBR rubber hoses for fuel applications per SAE J30 specifications.

Which fuel and oil applications? Low-pressure fuel circuits, injection return lines, tank ventilation, breather lines, carburetor supply, turbo oil circuits, crankcase ventilation, fuel vapor recovery, biofuel applications E85/E100, mineral oil hydraulic systems, motorsport with methanol/ethanol, aviation 100LL gasoline and marine unleaded fuel.

REDOX Hydrocarbon Hose Technical Structure

How are our FKM/VMQ bi-component hoses built?

  1. Black FKM inner layer - Fluoroelastomer impermeable to hydrocarbons, 1-2mm thick
  2. Anti-permeation barrier - Zero fuel vapor diffusion to exterior
  3. Chemical bonding interface - Permanent FKM/VMQ molecular adhesion
  4. External VMQ silicone body - Thermal and mechanical protection 3-4mm
  5. Textile reinforcement 3-4 plies - Polyester or aramid per pressure rating
  6. Gasoline resistance - 100% sealed E10, E15, E85, premium, regular
  7. Oil resistance - Compatible all engine oils 0W20 to 20W60
  8. Temperature range - -40°F to 392°F continuous (peaks 428°F)
  9. Working pressure - 43 PSI fuel, 72 PSI oil, test 130 PSI
  10. Standards compliance - SAE J30 R6/R7, DIN 73379, ISO 7840 marine

Complete Hydrocarbon Hose Range Available

  • Straight hoses: 5/16" to 8.7" ID, lengths 3-10 feet
  • 45°/90° elbows: 5/8" to 4" ID, standard radii
  • Straight couplers: Lengths 2.4"-8" all diameters
  • Reducers: Transitions 1"-1.25" to 3"-4"
  • Hump hoses: Expansion compensation 1.75" to 4"
  • Custom shapes: Complex forms per drawing/sample
  • Complete kits: Ready-to-install solutions by application

Comparison FKM Silicone vs NBR vs Standard Silicone vs Nylon Tubing

Performance CriteriaFKM Silicone REDOXNBR RubberStandard SiliconeNylon Tubing
Gasoline resistance Excellent (100%) Good (85%) None (0%) Excellent (100%)
E85 ethanol resistance Excellent (100%) Fair (60%) None (0%) Good (90%)
Engine oil resistance Excellent (100%) Excellent (95%) Poor (30%) Fair (70%)
Temperature range -40°F to 392°F -22°F to 212°F -58°F to 428°F -40°F to 248°F
Installation flexibility Excellent Good Excellent Poor
Vapor permeation Zero Low Total Zero
Fuel service life 15-20 years 3-5 years 6 months 10-15 years
Price per meter 5/16" $51 $14 $20 $28
Automotive certification SAE J30 R6/R7 SAE J30 R6 Not certifiable SAE J2260
Maintenance required Inspection 5 years Replace 3 years Prohibited fuel Inspection 5 years

Secure Fuel Hose Installation - Mandatory Protocol

Step 1: Fuel safety Engine cold mandatory, minimum 2hr stopped. Disconnect battery. Ventilate work area. CO2 extinguisher ready. Goggles and hydrocarbon-resistant gloves mandatory.

Step 2: Depressurize circuit Remove fuel pump fuse. Start engine until stall. Place absorbent cloths under connections. Prepare clean fuel collection pan.

Step 3: Remove old hose Loosen clamps progressively. Immediately plug lines with appropriate caps. Check fittings for cracks. Clean connections with dry cloth only.

Step 4: Verify new hose Confirm FKM or "Fuel" marking visible. Check exact ID (no play). Observe flow direction if indicated. Cut perpendicular if adjusting.

Step 5: Install FKM hose Never lubricate (slip risk). Push straight without twisting. Insert minimum 1" onto fitting. Position away from direct heat sources.

Step 6: Tighten fuel clamps Use only approved fuel clamps. Firm but without hose deformation. Double clamp if pressure >29 PSI. Verify alignment after tightening.

Installation time: 45-120 minutes per accessibility Difficulty: High (experienced mechanic recommended) Special tools: DIN fuel clamps, circuit plugs, ATEX collection pan

Top 15 Best-Selling Hydrocarbon Products

  1. 5/16" FKM hose x 3ft - Carburetor/pump supply - $51/meter
  2. 1/4" FKM hose x 3ft - Motorcycle tank vent - $43/meter
  3. 3/8" FKM hose x 3ft - Diesel injection return - $59/meter
  4. 90° elbow 5/16" FKM - Chassis passages - $32
  5. 1/2" FKM hose x 3ft - Turbo oil circuit - $66/meter
  6. Straight coupler 1.2" FKM - Fuel pump connection - $48
  7. 1" FKM hose x 3ft - Competition crankcase vent - $108/meter
  8. Reducer 3/8"-5/16" FKM - Circuit adaptation - $40
  9. Complete motorcycle fuel kit - 3 hoses + clamps - $142
  10. 5/8" FKM hose x 3ft - Auto tank ventilation - $77/meter
  11. Hump hose 3" FKM - Thermal compensation - $165
  12. 45° elbow 1/2" FKM - Oil circuit - $36
  13. 2.75" FKM hose x 3ft - Vapor recovery - $210/meter
  14. Coupler 1.4" FKM - Fuel filter connection - $62
  15. Aviation 100LL kit - Certified aerospace - $335

Why these references? 1/4"-5/16"-3/8" = 60% fuel applications. 1/2"-5/8" = oil/ventilation circuits. Complete kits avoid material selection errors.

Critical Hydrocarbon Safety Questions

Are FKM hoses mandatory for gasoline? Legally required for any permanent fuel contact per directive 97/24/EC. Standard silicone degrades in 3-6 months with gasoline, major fire risk. Insurance may deny claim if non-compliant hose. Vehicle inspection can refuse vehicle. Fines possible for non-compliant use.

What's the difference between FKM, FPM and Viton®? Chemically identical: fluoroelastomer hydrocarbon resistant. FKM = generic ISO standard. FPM = German DIN standard. Viton® = DuPont/Chemours trademark. REDOX uses FKM quality equivalent Viton® A. Identical performance, optimized price without brand premium.

How long does FKM hose last with E85? Minimum 15-20 years with E85 bioethanol. Immersion tests 10,000 hours without degradation. E85 more aggressive than premium on standard rubbers. FKM specifically formulated for alcohols/ethers. Annual visual inspection recommended. Preventive replacement 15 years.

Can these hoses be used for brake circuits? NO, NEVER. DOT brake fluid requires specific EPDM. FKM incompatible with brake fluid glycols. Risk of fatal brake failure. Use only DOT-approved brake hoses exclusively. Material confusion = immediate vital danger.

How to identify genuine FKM hose? Interior always black (FKM naturally black). "FKM", "Fuel" or "Hydrocarbon" marking mandatory. Characteristic odor different from silicone. Gasoline drop test: no swelling 24hr. Coherent price (3x standard silicone). SAE J30 conformity certificate required.

Do FKM hoses resist B100 biodiesel? Yes but lifespan reduced to 10 years with pure B100. B7/B10 standard = normal 15-20 year life. Biodiesel more corrosive than mineral diesel. Semi-annual inspection with biodiesel >B20. Alternative: PTFE/Teflon for intensive B100.

What maximum pressure for gasoline? 43 PSI continuous low-pressure circuit (majority applications). 72 PSI possible with double aramid reinforcement. High-pressure injection >72 PSI = rigid metal lines mandatory. Pressure test 3x working before delivery. Overpressure valve recommended.

Can FKM hoses be painted? Discouraged: paint can hide cracks. If necessary: degrease isopropyl alcohol, plastic primer, fuel-resistant paint. Never paint connection areas. Inspection impossible after painting = safety risk.

Is there an installation direction? Certain models with anti-crush helix have preferred direction. Engraved arrow indicates optimal flow direction. Elbows: long part fixed side, short movable. Technical documentation specifies direction if applicable.

Do standard clamps work? NO. Specific fuel clamps DIN 3016/3017 standards mandatory. Full band 316L stainless anticorrosion. Minimum width 0.35". Worm drive system prohibited (sparks). Clamp replacement every 5 years preventive.

Technical Data and Hydrocarbon Certifications

FKM layer specifications:

  • Hardness: 75 ±5 Shore A
  • Density: 0.067 lb/in³
  • Tensile strength: 1450 PSI minimum
  • Elongation at break: 200% minimum
  • Compression set: <20% (70hr/302°F)
  • Permeability: <0.02 oz/ft²/day

Validated chemical resistances:

  • Gasolines: Regular, premium, E10, E15, E85, E100
  • Diesels: B7, B10, B30, off-road, heating oil
  • Oils: Mineral, synthetic, PAO, ester
  • Additives: ETBE, MTBE, methanol, ethanol
  • Solvents: Limited resistance, consult chart
  • Acids/bases: Variable per concentration

Certifications and approvals:

  • SAE J30 R6/R7 (automotive fuel)
  • DIN 73379 Type 2 (Europe fuel)
  • ISO 7840 A1/A2 (marine fuel)
  • EN 13765 (gas stations)
  • ATEX Zone 1 (explosive atmospheres)
  • RoHS/REACH (environmental compliance)

Systematic quality testing:

  • Fuel immersion 1000hr at 140°F
  • Vapor permeation 168hr at 104°F
  • Burst pressure >130 PSI
  • Thermal aging 3000hr
  • Ozone 100 pphm 200hr
  • Batch testing 100% production

Summary: REDOX hydrocarbon silicone hoses with FKM inner layer are THE secure mandatory solution for any fuel/oil contact. Proven resistance 15-20 years, SAE/DIN certifications, zero vapor permeation. Maximum safety, legal compliance, permanent stock all sizes. Professional installation recommended. Order with conformity certificate for insurance/inspection.

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