3M
3M 361 High-Temperature Glass Cloth Tape White 1/2 in 60 yd
High-temperature glass cloth tape with silicone adhesive withstands 450 °F for sealing and repair
- ColorWhite
- Withstands 450 °F for reliable high-heat sealing
- Silicone adhesive delivers 38 oz/in bond to steel
- 4 mil fiberglass cloth backing resists tears and abrasion
- 60 yd continuous roll covers long runs without splicing
- White color allows easy visual inspection of seals
High-Temperature Glass Cloth Tape
3M 361 is a white fiberglass cloth tape with silicone adhesive built for sealing and maintenance tasks that see sustained heat. The 1/2 inch by 60 yard roll suits HVAC technicians, plant engineers and anyone needing a continuous high-temperature seal indoors or outdoors.
Capacity and headroom
Rated to 450 degrees Fahrenheit, the tape holds its bond on ductwork, oven doors and exhaust components where standard tapes fail. At 6.4 mil thickness the backing resists tearing during application, yet the roll length covers long seams without splicing.
Thermals, noise and power draw
Silicone adhesive delivers 38 ounces per inch adhesion to steel while remaining stable across the full temperature range. No power, moving parts or noise are involved; the tape simply maintains its seal through thermal cycling in industrial and HVAC environments.
Highlights
- Withstands 450 °F for reliable high-heat sealing
- Silicone adhesive delivers 38 oz/in bond to steel
- 4 mil fiberglass cloth backing resists tears and abrasion
- 60 yd continuous roll covers long runs without splicing
- White color allows easy visual inspection of seals
Specifications
| Brand | 3M |
|---|---|
| Color | White |
Questions about this item
Will the 1/2 in 3M 361 tape adhere reliably to the older steel ductwork I am keeping?
The silicone adhesive delivers 38 oz/in adhesion to steel, so it bonds firmly to existing duct surfaces.
How can I verify the 3M 361 tape is performing correctly once applied?
It is rated for continuous exposure up to 450 °F; if the tape remains intact and sealed at your operating temperature, it is working as intended.
Does the roll include a dispenser or must I buy one separately for the 60 yd length?
The product is a continuous 60 yd roll of 6.4 mil glass cloth tape; no dispenser is included and must be sourced separately.
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