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Chemical Compatibility: NR (Natural Rubber)
Calcium Salts to Calcium Tungstate
Chemical compatibility ratings for elastomers and engineering materials exposed to various chemicals — resistance grades from A (excellent) to D (not recommended), plus X (insufficient data)
| material | chemical | parker compound code | rating | rating code |
|---|---|---|---|---|
| NR (Natural Rubber) | Calcium Salts | N0674-70 | A-Excellent | A |
| NR (Natural Rubber) | Calcium Silicate | N0674-70 | A-Excellent | A |
| NR (Natural Rubber) | Calcium Stearate | V1164-75 | D-Not Recommended | D |
| NR (Natural Rubber) | Calcium Sulfamate | V1164-75 | D-Not Recommended | D |
| NR (Natural Rubber) | Calcium Sulfate | E0540-80 | A-Excellent | A |
| NR (Natural Rubber) | Calcium Sulfide | N0674-70 | B-Good | B |
| NR (Natural Rubber) | Calcium Sulfite | N0674-70 | B-Good | B |
| NR (Natural Rubber) | Calcium Thiocyanate | E0540-80 | A-Excellent | A |
| NR (Natural Rubber) | Calcium Thiosulfate | E0540-80 | B-Good | B |
| NR (Natural Rubber) | Calcium Tungstate | E0540-80 | A-Excellent | A |
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