Flame Retardant Aluminum Foil Tape
OPALUS PACK manufactures flame retardant aluminum foil tape for projects where duct seams, insulated equipment, cable-adjacent surfaces, and thermal jackets need controlled flame spread behavior. The tape uses dead-soft aluminum foil for radiant heat reflection and a flame-retardant acrylic adhesive for stable bonding under heat cycling, humidity, and airflow movement. In internal HVAC cycling checks, peel retention stayed above 85 percent after 48 h, helping reduce seam lifting in industrial insulation work.
- Backing: dead-soft aluminum foil, 20-50 um
- Adhesive: flame-retardant acrylic PSA
- Width: 50-1000 mm, custom slitting available
- Roll length: 10-50 m
- Color: natural silver aluminum finish
- Service range: -20 C to 120 C
Key Features of Aluminium Tape
Product Overview
OPALUS PACK positions this material for applications where the adhesive layer must resist sustained burning while the foil surface reflects heat and protects insulation edges. It is suitable when buyers need a fire resistant foil tape for seam-level safety improvement, not a certified fire barrier.
In field use, failure normally begins at the exposed tape edge. Heat cycling makes the duct or equipment shell expand and contract. Moisture then accelerates adhesive aging at the edge, and a small lifted corner can become a micro gap. This flame resistant sealing tape is formulated to slow that failure path by balancing peel strength and flexibility.
The main difference from standard aluminum sealing tape is the adhesive behavior. Aluminum foil itself does not burn, but the adhesive decides whether the bonded seam keeps burning, softens, or self-extinguishes after an ignition source is removed. That distinction keeps the product separate from general adhesive or insulation tape.
Benefits
- Supports surface flame spread control at bonded seam edges
- Reflects radiant heat away from insulation joints and equipment jackets
- Reduces edge lifting caused by thermal expansion and humidity aging
- Maintains practical adhesion on foil-faced insulation, metal duct, and pipe wrap surfaces
- Helps separate warm equipment surfaces from nearby cable routing zones
- Provides a narrower option for buyers who need flame-retardant adhesive behavior, not only high temperature resistance
How does the adhesive layer control flame behavior?
A foil surface can reflect heat, but it does not decide how the tape behaves. The flame-retardant acrylic adhesive is designed to reduce continuous burning and limit flame travel. In OPALUS PACK internal flame observation, the adhesive showed a self-extinguishing tendency after the ignition source was removed. This supports surface-risk control, but the tape should not be described as fireproof.
TDS – Technical Data Sheet
| Item | Typical Value |
|---|---|
| Product type | Flame retardant aluminum foil tape |
| Manufacturer | OPALUS PACK |
| Backing material | Dead-soft aluminum foil |
| Foil thickness | 20-50 um |
| Adhesive type | Flame-retardant acrylic pressure-sensitive adhesive |
| Total thickness | 65-110 um |
| Adhesion strength | >= 16 N/25 mm |
| Peel retention after cycling | >= 85 percent after 48 h internal HVAC thermal cycling |
| Tensile strength | >= 35 N/25 mm |
| Elongation | >= 3 percent |
| Service temperature | -20 C to 120 C |
| Application temperature | >= 10 C |
| Flame behavior | Self-extinguishing tendency, no sustained flame propagation in internal observation |
| Recommended surfaces | Metal duct, foil-faced insulation, equipment jacket, pipe wrap |
| Storage condition | 20 C – 25 C, dry indoor environment |
Applications
- Insulated equipment seams: sealing overlaps on tanks, cabinets, housings, and thermal jackets where heat reflection and flame-retardant bonding are both required.
- Ventilation duct seam reinforcement: used on selected duct joints where seam lifting, airflow vibration, and surface flame spread control matter.
- Pipe insulation wrapping: closing foil-faced insulation overlaps to reduce moisture entry and maintain a continuous reflective surface.
- Cable-adjacent isolation: applied near cable trays or wiring routes as a reflective separation layer. It is not electrical insulation.
- Maintenance repair zones: reinforcing aged insulation edges that have started to lift after heat, humidity, or vibration exposure.
When should this tape be used instead of standard foil tape?
Use this tape when the seam is close to heat sources, insulated equipment, duct edges, or cable-adjacent areas where adhesive burning behavior matters. Standard foil tape may be enough for basic sealing or patching. This version is more suitable when reflective heat protection and flame-retardant adhesive performance are both required.
FAQ
What is flame retardant aluminum foil tape used for?
It is used for surface sealing where heat reflection, adhesive stability, and flame spread control are required.
Is this tape the same as aluminum insulation tape?
No. Aluminum insulation tape focuses on insulation sealing. This product focuses on flame-retardant adhesive behavior at seam interfaces.
Can it be used near cables?
Yes, it can be used nearby as a reflective separation layer, but it is not an electrical insulating tape.
Does high temperature resistance mean flame retardant performance?
No. Temperature resistance measures service stability, while flame retardancy relates to ignition and flame travel behavior.