Leak-Proof Silicone Gaskets Designed for Oil and Fuel Resistance

ASTM D2000 · SAE J200 · ISO 9001:2024 certified

beyond standard sealing

These premium fluorosilicone-modified gaskets deliver exceptional performance in continuous contact with gasoline, diesel, bio-fuels, synthetic oils, and transmission fluids. Zero leak even after 5000h accelerated aging. Perfect for oil pans, fuel pumps, marine engines, and industrial gearboxes. 

 certified fluid compatibility

fluid / medium	test duration / temp	volume change	hardness change
ASTM #1 oil	1000h @ 150°C	+1.8%	-2 pts
IRM 902 (oil)	500h @ 125°C	+3.2%	-3 pts
Fuel C (50/50 iso-octane/toluene)	70h @ 23°C	+6.5%	-5 pts
diesel B20	1000h @ 60°C	+4.1%	-3 pts
E85 ethanol	1000h @ 40°C	+7.0%	-6 pts
automatic transmission fluid (Dexron VI)	500h @ 150°C	+2.5%	-2 pts

 standard gasket dimensions & physicals

profile / type	thickness range	hardness (shore A)	tensile (MPa)
solid sheet (custom die-cut)	0.8 – 6.4 mm (±0.10)	60 ±5	9.2
reinforced fabric insert	1.2 – 3.2 mm	75 ±5	11.5
O-ring cord stock	2.0 – 10.0 mm Ø	70 ±5	8.8
molded flange gasket	1.5 – 5.0 mm	65 ±5	9.5

 field-proven in: heavy-duty trucks, agricultural sprayers, transfer cases, hydraulic pumps, fuel rail seals, and aerospace ground support. Every lot is tested for compression set and fluid resistance.

physical properties

property	value
density (g/cm³)	1.28 ±0.02
tear strength (kN/m)	24
elongation at break	400%
compression set (22h/175°C)	16%
volume resistivity	1.2 x 10¹⁴ Ω·cm
brittle point	< -65°C

extended fuel aging

fuel type	swell after 1000h
diesel (low sulfur)	+3.8%
gasoline (E10)	+5.2%
jet fuel A-1	+4.0%
hydraulic oil (phosphate ester)	+6.5%

 certifications & test methods

All gaskets are manufactured under strict process controls and tested per international standards.

standard	requirement	typical result
ASTM D2000 M2GE 507	heat resistance, oil swell	pass (class GE)
SAE J200	tensile / elongation	9.5 MPa / 390%
ISO 3605 (fuel resistance)	Fuel C 70h @ 23°C	volume +6%
REACH / RoHS	phthalate-free, no heavy metals	compliant
UL 94 (flammability)	HB rating	passed, V-0 available