Page 82 - GETELEC catalogue US 2020

Cellular silicone elastomers

Our range of cellular silicone elastomers allows the making of seals with low hardness and shock-
absorbing stops. All these products are available with or without adhesive on request.

CHARACTERISTICS

Reference GT 11 GT 21 GT 31 GT 27 EX
Type Closed cell cellular material
Material Expanded Expanded Expanded Expanded
silicone silicone silicone fluorosilicone
Hardness shore A (±5) 12 20 30 20
Density g/cm3 (±0.1) 0.40 0.60 0.80 0.55
UL94 rating RF version (UL94 V1) feasibility
Color Off-white (other colour on request) Blue
Working temperature -55°C to +200°C (up to 250°C) -60°C to +230°C

Compression force
Reference GT 11 GT 21 GT 31
Sample thickness 4 mm 3.5 mm 4 mm
Force kg*/cm² Crushing % Force kg*/cm² Crushing % Force kg*/cm² Crushing %
0.26 7 0.4 17 0.65 5
0.45 18.6 0.7 25 1.3 10
0.76 30.2 1.1 35 2.34 15
1.16 41.9 1.5 42 3.25 20
1.84 53.5 2.1 48 - -

Available formats : Molded Cut Sheet

TOLERANCES OF OUR SEALING SHEETS

External dimensions (mm) Thickness (mm) Thickness tolerances +/-
300 x 300 1.00 ≤ Th. < 2.00 +/- 0.20
300 x 300 2.00 ≤ Th. < 4.00 +/- 0.30
300 x 300 4.00 ≤ Th. < 8.00 +/- 0.50

Note
The use of expanded material beyond 50% compression is not
recommended due to the risk of breaking the cell walls and
inducing significant residual deformation.

Recommended compression is in the 20 to 30% range.

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