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Appendix

   XRF Accessories      Chemical Resistance Tables
Chemical Resistance of Kapton
Percent Retained (typical)
SubstanceConditionsTensile StrengthElongationTensile Modulus
Acetic Acid, Glacial 36 days, 110° C 85 62 102
Acetone 365 days, R.T. 67 62 160
Benzene 365 days, R.T. 100 82 100
Chloroform 365 days, R.T. 93 74 96
p-Cresol 22 days, 200° C 100 77 102
Hexane 365 days, R.T. 97 89 100
Jet Fuel 190 days, R.T. 86 92 84
Methanol 365 days, R.T. 100 73 140
Sodium Hydroxide, 10% 5 days, R.T. - Degrades -
Toluene 365 days, R.T. 94 66 97
Transformer Oil 180 days, R.T. 100 100 100
Water pH=1 14 days, 100° C 65 30 100
Water pH=4.2 14 days, 100° C 65 30 100
Water pH=7.0 166 days, 100° C 65 20 100
Water pH=8.9 14 days, 100° C 65 20 100
Water pH=10.0 4 days, 200° C 65 10 100
Reprinted by permission of E.l. du Pont de Nemours & Co., Kapton, Summary of Properties E-50533
Chemical Resistance of Mylar
Percent Retained (typical)
SubstanceConditionsTear StrengthElongationTensile Strength
Acids
Glacial Acetic Acid 24 hours, 75°C 100 10 100
Hydrochloric Acid, 10% 100 100 75
Hydrochloric Acid, Con. 0 0 0
Hydrochloric Acid, 48% 80 50 50
Nitric Acid, 10% 100 100 100
Nitric Acid, 40% 75 50 75
Sulfuric Acid, 30% 100 100 100
Bases
Ammonium Hydroxide, 2% 24 hours, 75°C 85 65 40
Sodium Hydroxide, 2% 90 65 40
Sodium Hydroxide, 10% 0 0 0
Solvents
Dioxane (1,4) 24 hours, 75°C 100 100 100
Ethyl Acetate 100 100 100
Ethanol 100 100 100
Methyl Ethyl Ketone 100 100 100
Toluene 100 100 100
Trichloroethylene 100 100 100
Miscellaneous
Detergent, 25% 24 hours, 75°C 100 100 125
Dimethyl Formamide 100 100 -
Sodium Sulfide, 4% 72 45 40
Tricresyl Phosphate 100 100 -
Impregnants
Hydrocarbon Oil, hi. vis. 900 hours, 100°C 92 88 87
Hydrocarbon Oil, low vis. (immersion) 96 67 123
Silicone, DC 200 79 141 97
Varnishes
Asphalt Base GE9466 168 hours, 150°C 92 18 113
Glyptal Resin GE2480 (baked) 90 80 60
Phenolic Resin GE1678 92 3 73
Silicone Resin GESR80 58 230 100
Silicone Resin GESR28 100 54 97
Reprinted by permission of E.l. du Pont de Nemours & Co., Bulletin M-3C.
Chemical Resistance of Polypropylene
SubstanceTemperature °CEffect
Acetic Acid, Glacial 80 B
Acetic Acid, 50% 80 A
Acetone 60 A
Acetophenone 20 B
Ammonia, 30% 20 A