Home » GTU-SA Series — Standard Density Silicone Foam Rubber

GTU-SA Series — Standard Density Silicone Foam Rubber

Q: What is the biggest difference between GTU-SA and lower-density foam grades?

GTU-SA is positioned as an ultra-rigid silicone foam for durable, very high-closure-force gasket applications rather than softer, lower-force sealing interfaces.

Q: Is GTU-SA suitable for demanding enclosure gasket structures?

Yes. The product description explicitly states it is designed for enclosures requiring durable, high-closure-force gaskets.

Q: Is GTU-SA suitable for outdoor cabinet sealing?

Yes. The datasheet explicitly highlights waterproof sealing strips for outdoor communication and power cabinets exposed to long-term sunlight, rain, and temperature fluctuations.

Q: Can the product be supplied in converted forms?

Yes. The datasheet lists customized sheet products and customized die-cut products.

Q: What flame rating and shelf life are listed for GTU-SA?

The listed flame retardancy is UL94 V0, and the listed shelf life is 12 months.

Closed-cell silicone foam in six density grades from 200 to 450 kg/m³. Each grade balances compressive stiffness against sealing effectiveness — from soft low-force gaskets to ultra-rigid enclosure seals with sponge-rubber-level performance.

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Strengths

Density range 200–450 kg/m³ covering soft-seal to rigid-gasket needs
Compression set <5% @158 °F — seal force maintained over long service life
Breakdown voltage ≥9 kV (at 450 kg/m³) — safe for high-voltage enclosures
Thermal conductivity ≤0.2 W/(m·K) — strong thermal insulation
UL94 V-0 rated; stable from -60 °C to +200 °C

Customization

Six density grades — select by required closure force
Thickness 1.0–10.0 mm; stock or custom rolled
PSA adhesive backing: single- or double-sided
Die-cut gaskets, strips, or shaped parts to customer drawing

Technical Information

Review some Applications recommendations and how to use product series.

Installation Notes

Battery pack inter-cell cushioning and insulation
Enclosure housing sealing strips (upper/lower)
Outdoor communication and power cabinet gaskets
EV charging station fire-sealing
Electronic enclosure EMC gaskets
Automotive door and body panel seals

Installation Notes

Target 20–40% compression deflection for a reliable seal
Clean and dry the mating surface before applying PSA-backed material
Roll stock: store upright on the core to prevent flat spots
Shelf life 12 months — store sealed away from heat and moisture

Frequently asked questions

What is the biggest difference between GTU-SA and lower-density foam grades?

GTU-SA is positioned as an ultra-rigid silicone foam for durable, very high-closure-force gasket applications rather than softer, lower-force sealing interfaces.

Is GTU-SA suitable for demanding enclosure gasket structures?

Yes. The product description explicitly states it is designed for enclosures requiring durable, high-closure-force gaskets.

Is GTU-SA suitable for outdoor cabinet sealing?

Yes. The datasheet explicitly highlights waterproof sealing strips for outdoor communication and power cabinets exposed to long-term sunlight, rain, and temperature fluctuations.

Can the product be supplied in converted forms?

Yes. The datasheet lists customized sheet products and customized die-cut products.

What flame rating and shelf life are listed for GTU-SA?

The listed flame retardancy is UL94 V0, and the listed shelf life is 12 months.

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