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1 Short periods 2 Swells 3 Less than 20C 4 Less than 30C 5 Less than 100C 6 Medium concentration |

|
Bioprene® Marprene® |
Sta-Pure Silicone |
Neoprene |
Butyl |
PVC |
Fluorel® |
Chem.Sure® |
Palmitic acid | y |
| y | y |
| y |
|
Paraffin | n | n | n | n | n | y |
|
"Parcalene" |
|
| y |
|
|
|
|
Perchloric acid | y | n | y | y | n | y |
|
Perchloroethylene | n | y | n | n | n | y |
|
Petrol | n | n | y | n | n | y | y |
Petroleum | n | n | y | n | n | y | y |
Petroleum white spirit |
|
| y | n |
|
|
|
Phenol | n | n | n | y | n | y |
|
Phenyl ethyl ether |
|
| n | n |
|
|
|
Phenyl hydrazine |
|
| n | n |
| y |
|
Phenylbenzene |
|
| n | n |
| y |
|
Phorone |
|
|
| y |
|
|
|
Phosphonate |
|
| y | y |
|
|
|
Phosphoric acid | y | n | y | y | y | y |
|
Phthalic acid | y | y |
|
| y | y |
|
Picric acid | y | n | y | y |
| y |
|
Pine oil |
|
| n | n |
| y |
|
Pinene |
| n | y | n |
| y |
|
Piperidine |
|
| n | n |
| n |
|
Polyethylene glycol | y |
| y |
|
|
|
|
Potassium bicarbonate |
|
| y |
| y |
|
|
Potassium bisulphate |
|
| y |
| y |
|
|
Potassium carbonate |
| y |
|
| y | y |
|
Potassium chlorate |
| y |
|
| y | y |
|
Potassium cyanide | y | y | y | y | y | y |
|
Potassium dichromate | y | y | y | y |
| y |
|
Potassium hydroxide | y | n | y | y | y | y |
|
Potassium iodide |
| y |
|
| y | y |
|
Potassium nitrate |
| y | y |
| y | y |
|
Potassium nitrite |
|
| y |
| y |
|
|
Potassium phosphate |
|
| y |
| y |
|
|
Potassium salts | y | y | y | y | y | y |
|
Producer gas |
| y | y | n |
| y |
|
Propanol, 50C |
|
|
|
|
|
| y |
Propane |
| n | y | n |
| y |
|
Propionic acid |
|
| n | y | n |
|
|
Propyl alcohol | y | y | y | y |
| y |
|
"Pyrene Bonderite" |
|
| y |
|
|
|
|
Pyridine | n | n | n | y | n | n |
|
Pyroligneous acid |
|
| y | y |
|
|
|
Pyrrole |
| y | n | n |
|
|
|
|
|
|
|