O-Ring Fluid Compatibility Guide - H's

(for reference only)

1 = Recommended 2 = Probably Satisfactory 3 = Marginal 4 = Not Recommended

Chemical/Media	Perfluoro- elastomer	Viton® ETP	Aflas® TFE/P	Viton® FKM	EPDM P.C.	Buna-N NBR	Silicone	Fluoro- silicone
HALOTHANE (Bromochlorotrifluoroethane)	2	1	1	1	4	4	4	2
HALOWAX OIL	2	1	1	1	4	4	4	1
Heavy Water	1	1	1	2	1	1	1	1
HEF-2 (Trialkyl Pentaborane)	1	1	1	1	4	2	4	2
Helium	1	1	1	1	1	1	1	1
Heptachlor	1	-	-	-	-	-	-	-
Heptanal	1	-	-	-	-	-	-	-
Heptanoic Acid	1	-	-	-	-	-	-	-
Hexachloroacetone	1	4	4	4	1	4	-	-
Hexachlorobutadiene	1	-	-	-	-	-	-	-
Hexachloroethane	1	-	-	-	-	-	-	-
Hexaethyl Tetraphosphate (HETP)	1	-	-	-	-	-	-	-
Hexafluoroethane (FC 116)	2	2	-	2	1	1	-	-
Hexamethyldisilizane (HMDS)	1	-	-	-	-	-	-	-
Hexamethylenediamine	2	-	-	-	-	-	-	-
Hexamethylenetetramine	2	-	-	-	-	-	-	-
Hexyl Acetate	1	-	-	-	-	-	-	-
Hexyl Alcohol	1	1	-	1	3	1	2	2
Hexylene Glycol	1	-	-	-	-	-	-	-
Hexylresorcinol	1	-	-	-	-	-	-	-
High Viscosity Lubricant H2	1	1	1	1	1	1	1	2
High Viscosity Lubricant U4	1	1	1	1	1	1	1	2
Hydraulic Oils (Petroleum, Aircraft)	1	1	1	1	4	1	2	1
Hydraulic Oils (Synthetic Base)	1	-	-	-	-	-	-	-
Hydrazine	2	4	1	4	1	2	3	4
Hydrazine Dihydrochloride	1	-	-	-	-	-	-	-
Hydrazine Hydrate	1	-	-	-	-	-	-	-
Hydriodic Acid	1	-	-	-	-	-	-	-
Hydrobromic Acid	1	1	1	1	1	4	4	3
Hydrochloric Acid (37%) (Hot)	1	1	1	1	3	4	3	2
Hydrochloric Acid, Conc.	1	1	-	1	2	2	4	3
Hydrocyanic Acid	1	1	1	1	1	2	3	2
Hydrofluoric Acid (49%)	1	1	-	1	4	4	4	4
Hydrofluoric Acid, Anhydrous	1	1	-	1	3	4	4	4
Hydrofluoric Acid, Conc. (Hot)	1	3	-	3	4	4	4	4
Hydrofluosilicic Acid	1	1	1	1	1	2	4	4
Hydrogen	1	1	-	1	1	1	3	3
Hydrogen Bromide, Anhydrous	1	-	-	-	-	-	-	-
Hydrogen Chloride, Anhydrous	1	1	1	1	1	4	-	-
Hydrogen Fluoride, Anhydrous	2	4	-	4	2	-	4	-
Hydrogen Iodide, Anhydrous	1	-	-	-	-	-	-	-
Hydrogen Peroxide (36%)	1	1	1	1	1	2	2	2
Hydrogen Selenide	1	-	-	-	-	-	-	-
Hydrogen Sulfide	1	4	1	4	1	1	3	3
HYDROLUBE	1	1	1	1	1	1	2	2
Hydroquinone	2	3	3	2	4	3	2	2
Hydroxyacetic Acid	1	-	-	-	-	-	-	-
Hydroxycitronellal	1	-	-	-	-	-	-	-
Hydroxyethylenediamine	1	-	-	-	-	-	-	-
Hydyne	2	4	-	4	1	2	4	4
HYJET	1	4	2	4	1	4	4	4
Hypochlorous Acid	1	1	-	1	2	4	-	-

Next Fluid Compatibility I's

Our specialty is solving sealing problems for original equipment manufacturers. If you have any questions about the compatibiliity of these chemicals with Perfluoroelastomer, Viton® ETP, Aflas® TFE/P, Viton® FKM, EPDM P.C., Buna-n, Silicone or Fluorosilicone please talk to one of our engineers.