FAQ
High-temperature tape is a specialized adhesive tape capable of maintaining its adhesiveness, insulating properties, or sealing capabilities under high-temperature environments.
- Exceptional Heat Resistance: This is the most defining feature. Depending on the material and design, high-temperature tapes can withstand temperatures ranging from approximately 120°C (250°F) to over 300°C (570°F), with specialized types even enduring above 500°C. This enables stability during high-temperature processes like manufacturing, soldering, or repairs.
- High-Temperature Adhesive Performance: Not only the base material but also the specialized adhesive must retain its bond strength without melting, decomposing, or losing adhesion under extreme heat.
- Stability: Resists shrinkage, deformation, brittleness, or emission of harmful gases when exposed to prolonged high temperatures
Polyimide (PI):
Excellent high-temperature resistance (typically continuous use at 260°C/500°F, with higher short-term tolerance), electrical insulation, chemical stability, and mechanical strength. Widely used in electronics and electrical applications.
Example: PI tapes shield PCB gold fingers during soldering (peak: 300°C) and insulate transformers
Fiberglass Cloth:
Woven fiberglass coated with high-temperature silicone adhesive. Offers heat resistance (180–260°C), flame retardancy, insulation, and moderate strength/abrasion resistance. Ideal for thermal insulation, bundling, and sealing.
Example: Reinforced fiberglass tapes withstand 220°C long-term in H-class transformers and lithium battery insulation
Polytetrafluoroethylene (PTFE/Teflon):
Extremely low friction coefficient (non-adhesiveness), exceptional chemical resistance, and sustained heat tolerance (~260°C). Primarily used in anti-stick or corrosive environments.
Example: PTFE tapes line food packaging heat-sealing rollers and industrial conveyor belts exposed to acids/alkalis
Aluminum Foil:
Foil laminated with heat-resistant adhesives (acrylic or silicone). Provides thermal insulation, moisture/EMI shielding, and sealing. Common in HVAC ducting, automotive systems, and electronic enclosures.
Example: Aluminum foil tapes seal air-conditioning pipes and shield electromagnetic interference in transformers
Electronics & Electrical Engineering
Protecting gold fingers on PCBs during wave soldering and reflow soldering to prevent solder contamination
Insulating and bundling wires, securing transformer coils, and fixing electronic components (e.g., resistors, capacitors) with heat-resistant adhesion
Providing electrical insulation in high-temperature environments (e.g., motors, lithium batteries)
Industrial Manufacturing
Masking non-target areas during powder coating, spray painting, and anodizing (e.g., automotive parts, metal furniture) to ensure precise coating edges
Shielding components during metal heat treatment (e.g., quenching) to prevent oxidation or distortion
Composite Materials & Aerospace
Fixing carbon fiber prepreg layers and sealing vacuum bags during composite molding processes
Masking and positioning parts during high-temperature curing (e.g., aircraft engine components, rocket thermal shields)
Automotive Industry
Bundling engine compartment wire harnesses and securing sensors exposed to heat (e.g., exhaust systems)
Fixing exhaust pipe heat shields and sealing joints in high-temperature zones (e.g., turbochargers)
HVAC (Heating, Ventilation, and Air Conditioning)
Sealing joints in pipe insulation and ductwork to prevent heat loss and improve energy efficiency
Household DIY & Appliances
Temporary insulation or sealing for ovens, dryers, and small appliances (requires tape rated ≥150°C)
Baking applications (e.g., securing parchment paper) using food-grade certified oven-safe tape (e.g., PTFE-based)
Packaging & Sealing
Sealing specialized packaging requiring high-temperature sterilization (e.g., medical device packaging, canned food autoclaving at 121°C)
Specialized for encapsulating resin eyeglass lenses during high-temperature curing processes. Key features include high transparency, residue-free removal, and heat resistance up to 130°C (e.g., JT8860 for blue-light-blocking lenses)
Lithium Battery Tape Series
Includes termination tapes (for electrode insulation), PACK tapes (bundle fixation), and tab lead tapes (welding point protection). Made from PI/PET films with electrolytic corrosion resistance, critical for cylindrical/pouch cell safety
LED Encapsulation High-Temperature Tape Series
Designed for LED epoxy resin filling and curing (e.g., MY68C transparent tape for digital tubes). Withstands 150–180°C, prevents overflow, and leaves no residue after peeling
Connector Tapes Series
Insulating tapes for electronic connectors and terminals, ensuring stability in soldering (reflow peak: 260–300°C). Commonly uses PI films for dielectric strength
Insulation & Fixation Tapes Series
Glass fiber-reinforced tapes for coil binding in motors/transformers, offering mechanical strength and flame retardancy (180–220°C continuous use)
High-Temperature Double-Sided Tape Series
Features acrylic/silicone adhesives on PI/PET bases. Used for bonding heat sinks, battery modules, and composite materials, withstanding 120–180°C long-term
Masking Tapes Series
Includes high-temp masking paper and PET green tapes for spray painting, powder coating, and PCB gold finger protection. Resists solvents, leaves sharp edges, and operates at 150–230°C
Teflon Tape Series
PTFE-based tapes with ultra-low friction and 260–300°C continuous resistance. Applied in non-stick industrial conveyors, food packaging seals, and chemical equipment lining