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3M

3M Glass Cloth Tape 361 White 1 in x 60 yd 7.5 mil 36 per case

SKU CH-KTDT-P1C8H

High-temperature silicone-adhesive glass cloth tape, 1 in wide by 60 yd long at 7.5 mil, supplied in a 36-roll case

  • TypeTape
  • ColorWhite
  • High-temp sealing with silicone adhesive on fiberglass cloth
  • 38 oz/in adhesion to steel for secure bonding
  • 60-yard continuous roll reduces changeover frequency
  • 4 mil thickness balances strength and conformability
  • 36-roll case supports high-volume industrial use

Industrial high-temperature sealing tape

3M Glass Cloth Tape 361 is a white silicone-adhesive tape built on a fibreglass cloth backing for aerospace, automotive, marine and military maintenance. It handles continuous indoor and outdoor exposure where standard tapes fail. Supplied as a continuous 60-yard roll in a 36-roll case.

Sustained heat and chemical exposure performance

The silicone adhesive delivers 38 oz/in adhesion to steel while resisting degradation at elevated temperatures over long shifts. Fibreglass cloth backing maintains dimensional stability and does not become brittle during extended thermal cycling. Clean-removal time is not rated, so the tape is intended for permanent or long-term sealing rather than temporary masking.

Installation notes and common issues

Apply to clean, dry surfaces at room temperature for maximum bond development; the 6.4 mil thickness requires firm pressure to wet out the cloth weave fully. Users sometimes expect clean removal because the adhesive is silicone, but the product carries no clean-removal rating and may leave residue on painted or polished substrates. Store rolls flat to prevent edge curl on the 1-inch width.

Highlights

  • High-temp sealing with silicone adhesive on fiberglass cloth
  • 38 oz/in adhesion to steel for secure bonding
  • 60-yard continuous roll reduces changeover frequency
  • 4 mil thickness balances strength and conformability
  • 36-roll case supports high-volume industrial use

Specifications

TypeTape
Brand3M
ColorWhite

Questions about this item

How much heat can the 361 tape handle before the silicone adhesive fails?

The 3M 361 glass cloth tape uses a silicone adhesive on a fibreglass backing designed for high-temperature sealing in aerospace and automotive environments.

What surface preparation is needed for the 38 oz/in adhesion to steel to be effective?

For the rated 38 oz/in adhesion to steel, ensure the surface is clean, dry and free of oils or contaminants before applying the 1 in wide tape.

Can the 6.4 mil thick 361 tape wrap around the same connectors as my older 7.5 mil stock?

The 361 series is 6.4 mil thick, slightly thinner than 7.5 mil, so it conforms more easily to irregular shapes while still providing high-temperature sealing.

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