Premium thermosetable glass cloth tape with rubber adhesive for high-temperature industrial splicing and insulation applications, offering superior heat resistance, tensile strength, and durability across extreme temperature ranges.
The 3M™ Thermosetable Glass Cloth Tape 365 is a premium industrial adhesive tape constructed with a glass cloth backing and thermosetable rubber adhesive, designed for demanding applications requiring high adhesion and superior heat resistance. This white glass cloth tape features exceptional tensile strength and is specifically engineered for splicing textured surfaces, particularly materials with rough surfaces or low internal strength such as roofing felts, fiberglass, and textiles. The thermosetable rubber adhesive provides excellent initial adhesion and high tack, which cross-links when exposed to a thermosetting cycle, delivering enhanced adhesion, bond strength, and superior heat resistance.
Constructed to withstand extreme conditions, this tape performs reliably across a wide temperature range from -29°C to 232°C (-40°F to 450°F), making it ideal for both indoor and outdoor industrial applications. The durable glass cloth backing will not shrink or rot, featuring outstanding abrasion and puncture resistance for extended performance under challenging conditions. With good solvent resistance and excellent conformability, the tape maintains its bond strength under a variety of environmental and chemical conditions. The 3M™ Thermosetable Glass Cloth Tape 365 meets rigorous industry standards including ASTM D3330, D3652, D3758, and FAR 25.853(a), ensuring compliance with aerospace and military specifications.
This industrial-grade tape is recommended for splicing and insulating applications requiring high tensile strength at elevated temperatures, corrosion-resistant wrapping on stainless steel hot air ducts, and splicing materials with challenging surface properties. With a shelf life of 18 months and core size of 3 inches, this tape is sold as a roll and is intended exclusively for industrial and occupational use by trained professionals in manufacturing, aerospace, automotive, construction, and specialty vehicle industries.
Key Features
- Thermosetable rubber adhesive cross-links when exposed to heat, providing enhanced adhesion and bond strength
- Glass cloth backing delivers high tensile strength of 2224 oz/in for increased productivity and durability
- Durable backing resists shrinkage, rotting, abrasion, and puncture damage for extended performance
- Performs reliably across extreme temperature range from -29°C to 232°C (-40°F to 450°F)
- Excellent solvent resistance maintains strong bonds under various chemical and environmental conditions
- Meets aerospace and military specifications including ASTM D3330, D3652, D3758, and FAR 25.853(a)
- Ideal for splicing rough surfaces, roofing felts, fiberglass, textiles, and materials with low internal strength
- Suitable for indoor and outdoor industrial applications in aerospace, automotive, and construction sectors
Technical Specifications
| Specification |
Value |
| Product Type | Thermosetable Glass Cloth Tape |
| Brand | 3M™ |
| Part Number | 365 |
| 3M ID | 7100132868 |
| Backing Material | Glass Cloth |
| Adhesive Type | Thermosettable Rubber Resin |
| Product Color | White |
| Total Tape Thickness without Liner (Imperial) | 8.3 mil |
| Total Tape Thickness without Liner (Metric) | 0.2 mm |
| Backing Thickness (Imperial) | 4.8 mil |
| Backing Thickness (Metric) | 0.12 mm |
| Adhesive Thickness (Imperial) | 3.5 mil |
| Adhesive Thickness (Metric) | 0.08 mm |
| Tensile Strength (Imperial) | 2224 oz/in |
| Tensile Strength (Metric) | 2430 N/100mm |
| Elongation at Break | 7% |
| Minimum Operating Temperature (Fahrenheit) | -40°F |
| Minimum Operating Temperature (Celsius) | -29°C |
| Maximum Operating Temperature (Fahrenheit) | 450°F |
| Maximum Operating Temperature (Celsius) | 232°C |
| Core Size (Imperial) | 3 inches |
| Core Size (Metric) | 7.62 cm |
| Shelf Life | 18 Months |
| Smallest Saleable Unit | Roll |
| Indoor/Outdoor | Indoor/Outdoor |
| Specifications Met | ASTM D3330, D3652, ASTM D3758, F.A.R. 25.853(a) |
| Primary Application | Splicing Together Fiberglass Web |
| Industries | Aerospace, Automotive, Construction, General Industrial, Military & Government, Specialty Vehicles, Transportation |
| Recommended Uses | Splicing and insulating applications requiring high tensile strength at elevated temperatures, corrosion resistant wrap on stainless steel hot air ducts, splicing materials with rough surfaces or poor internal strength such as roofing felt, fiberglass or textiles |
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