Kalsi Seal Material Options

Standard Kalsi Seal Materials*

Material Dash No. Material Name Material Hardness, Shore A Durometer
-10 HNBR (HSN) 80 ± 5
-11 HNBR (HSN) 85 to 90

*For elastomer selection considerations, see the Kalsi Seals Handbook.

 

Special Purpose / Special Order Seal Materials†

Material Dash No. Material Name Material Hardness, Shore A Durometer
-2 FKM 73 ± 5
-4 FKM 80 ± 5
-6 FKM 90 ± 5
-7 FEPM (TFEP) 70 ± 5
-8 FEPM (TFEP) 80 ± 5
-12 EPDM 80 ± 5
-13 EPDM 90 ± 5
-14 HNBR (HSN) 70 ± 5
-15 HNBR (HSN) 90 ± 5
-16 HNBR (HSN) 75 ± 5
-30 FKM 80 ± 5
-31 FKM 85 to 92

† The molding shrink rates of the FKM and TFEP materials differ from the shrink rate of the standard seal materials, and shaft and groove dimensions may require adjustment accordingly. Call for details.

 

HNBR Material Combinations for Dual Durometer Seals

Material Dash No. Inner Lip Hardness, Shore A Outer Lip Hardness, Shore A
-100 80 ± 5 65 ± 5
-101 85 to 90 65 ± 5
-102 90 ± 5 65 ± 5
-104 80 ± 5 70 ± 5
-105 85 to 90 70 ± 5
-106 90 ± 5 70 ± 5
-107 95 ± 5 70 ± 5
-108 80 ± 5 75 ± 5
-109 85 to 90 75 ± 5
-110 90 ± 5 75 ± 5
-112 85 to 90 80 ± 5
-113 90 ± 5 80 ± 5
-114 95 ± 5 80 ± 5
-115 95 ± 5  85 to 90

 

FEPM/FKM Material Combinations for Composite High Temperature Seals

Material Dash No. FEPM (TFEP) Inner Lip Hardness, Shore A FKM Outer Lip Hardness, Shore A
-200 80 ± 5 80 ± 5
-201 90 ± 5 90 ± 5
-202 95 ± 5 80 ± 5

The molding shrink rate of certain composite high temperature material combinations differs from the shrink rate of the standard seal materials. Shaft and groove dimensions may require adjustment if the seals are made from tooling that is based on the shrink rate of typical HNBR seal materials, particularly with larger seal diameters. Due to shrink rate and lubrication considerations, it is recommended that dedicated tooling should be used for High Temperature Seals. Call for additional information.

 

Plastic Lined Kalsi Seals

  Inner Lip Outer Lip
Dash No. Inner Lip Dash No. Outer Lip Dash No. Compound Name Durometer, Shore A
-303 -32 -11 HNBR 85 – 90
-307 -33 -10 HNBR 80 ± 5
-308 -33 -11 HNBR 85 – 90
-318 -35 -11 HNBR 85 – 90