Automotive oil sealing
Representative part: flange gaskets cut from nitrile rubber sheet. Ask for Shore A, fuel/oil medium and the IATF 16949 plant file only if the program requires it.
What the project actually demands of nitrile rubber sheet
Site conditions change the requirement, not just the price. Oil splash, outdoor ozone, food-contact claims and continuous temperature each move a different axis.
Pump and valve gaskets
Representative part: die-cut rings. Pair inner/outer diameter with thickness. Temperature belongs in °F or °C next to the fluid name.
Food-equipment pads
Representative part: sheet pads. A food-contact file must name the quoted grade and lot. A company letter is not enough.
Electronics enclosure seals
Representative part: punched sheet gaskets. Compression set % and thickness tolerance matter more than a brochure “oil resistant” line.
Construction flashing stock
Representative part: roll or sheet. Outdoor ozone and UV exposure can move the buyer off nitrile rubber sheet toward a different family — that change must be written, not assumed.
Automation wear pads
Representative part: cut pads. Abrasion and Shore hardness stay buyer decisions. Tensile strength in MPa or psi belongs on the quoted coupon if wear is the reason for the buy.
Which site condition changes the nitrile rubber sheet requirement
The matrix is a question list. It is not a published rating for any option on this site.
| Thermal | Chemical | Mechanical | Compliance |
|---|---|---|---|
| Service temperature in °F or °C, continuous vs peak | Oil, fuel, water or air named on the line | Shore A, tensile in MPa or psi, tear if specified | ASTM D2000 callout if the drawing uses one |
| Low-temperature flexibility if the plant is unheated | Whether a neighbouring FKM ask is actually in play | Compression set % under a named ASTM D395 condition | REACH / RoHS statements on the quoted grade |
| Heat-aging method if the buyer asked for it | Food-contact only with a named FDA 21 CFR 177 file | Density in g/cc when two grades look alike | Prop 65 only if the receiving plant requires it |
Assumptions that must be confirmed in writing: that “nitrile rubber sheet” means the same construction as a glove or gasket request; that a 70 hardness figure is Shore A; that a plant certificate covers the quoted lot.
Procurement situation: a plant asked for nitrile rubber sheet at “standard temperature.” Two factories picked different defaults — one answered −20 to +150°C, the other answered a room-temperature coupon only. The brief had to name °F or °C and the medium before the prices could be compared.
Write the nitrile rubber sheet temperature and medium
Send the project condition, thickness, quantity and destination. We will ask factories to answer those axes, not a promised field result.
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