Double Sided Thermal Tape For LED
 | Double Sided Thermal Tape For LED
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High Temp Tapes Company is a manufacturer of double sided thermal tape for led assemblies that need reliable bonding and controlled heat transfer. The tape is used between LED light bars, LED modules, aluminum heat sinks, heat dissipation fins, microprocessors and metal housings. It is developed for factory assembly where thermal contact, peel adhesion, dielectric strength and production stability must be checked together before bulk use.
Product Photos
Data Sheet
Item | Typical Value |
Product Type | Double sided thermal conductive adhesive tape |
Adhesive System | Thermally conductive acrylic pressure-sensitive adhesive |
Reinforcement Option | Glass fiber reinforced or aluminum foil reinforced, sample confirmed |
Total Thickness | 0.10 mm-0.50 mm typical factory range |
Thermal Conductivity | 0.8-1.6 W/mK typical test value by grade |
Bond Line Thickness | Thin contact layer, adjusted by thickness selection |
180 Degree Peel Adhesion | 8-18 N/25 mm on aluminum, sample test reference |
Dielectric Strength | >=5 kV/mm typical reference, grade dependent |
Holding Power | >=24 h at 25 C under factory test condition |
Working Temperature | -20 C to 120 C typical range |
Slit Width Tolerance | +/-0.5 mm after width confirmation |
Die-Cut Tolerance | +/-0.2 mm typical for simple shapes |
Roll Width | Custom slit width from jumbo roll |
Surface Requirement | Clean, dry, oil-free aluminum or metal surface |
Sample Validation | Peel, heating, dielectric and edge lifting observation before production |
Product Overview
This double sided thermal tape for led is made for LED assembly work where the bonding layer must do more than hold two parts together. In a typical LED module or light bar design, heat needs to move from the LED board into an aluminum heat sink, metal channel, housing or fin. If the contact layer is uneven, too thick, poorly pressed or contaminated by oil, the real heat transfer result can be weaker than the thermal conductivity number suggests.
As a thermal conductive tape for LED assemblies, the product should be selected according to the actual part design. In typical factory checks, grades around 0.8-1.6 W/mK are compared together with bond line thickness, aluminum surface flatness, contact area and working temperature. A thin grade may give better contact on a smooth aluminum base, while a thicker grade may help with small surface gaps. The right choice should be confirmed on the customer’s real LED module base and heat sink surface, not only on a standard test panel.
The structure can be adjusted for different production needs. Thermally conductive acrylic adhesive is used for stable surface wet-out and clean processing. Glass fiber reinforced grades can make die-cut handling easier, especially for narrow or small parts. Aluminum foil reinforced grades can be reviewed when the part needs better dimensional stability. For LED light bars, slit width is usually matched with the aluminum channel, with a typical slit tolerance around +/-0.5 mm after sample approval.
Benefits
- Creates a stable heat transfer path between LED modules and aluminum heat sinks.
- Helps reduce air gaps that can weaken contact between the heat source and cooling surface.
- Supports LED module thermal bonding tape requirements where peel adhesion and electrical insulation are checked together.
- Provides double-sided adhesion for selected assemblies without liquid adhesive, clips or extra fixing parts.
- Can be processed into narrow strips or die cut thermal adhesive pads for repeatable placement.
- Typical 180 degree peel adhesion on aluminum is about 8-18 N/25 mm, depending on grade and surface condition.
- In factory sample checks, bonded aluminum parts are usually observed for 24-72 hours under heating to check edge lifting, adhesive creep and contact stability.
Application
- LED light bars bonded to aluminum channels or metal housings.
- LED modules attached to aluminum heat sinks in panel lights and linear lights.
- Heat dissipation fins fixed to electronic control parts.
- Microprocessors and power devices requiring stable heat sink contact.
- Double sided heat transfer tape for LED assemblies with electrical insulation needs.
- Narrow strips used where roll width must match the LED housing design.
- Aluminum heat sink bonding where mechanical fixing is not preferred after sample testing.
What Tape Structure Works Better for LED Modules and Aluminum Heat Sinks?
For projects using thermal tape for aluminum heat sinks, the structure should match both the heat path and the assembly surface. A thinner bond line can help reduce thermal resistance when the aluminum base is flat and enough pressure is applied. A thicker adhesive layer can help compensate for minor unevenness, but it should not be selected only for cushioning. For LED modules with insulation requirements, peel adhesion on aluminum, dielectric strength, holding power and heating behavior should be checked together before production approval.
How Should Sample Testing Be Done Before LED Production?
Before production, testing should be done on the actual LED module base, aluminum heat sink or metal housing. The surface should be clean, dry and free from oil, then pressed with consistent pressure across the full bonding area. A useful sample check normally includes initial tack, 180 degree peel adhesion, dielectric strength, heating observation and edge lifting after continuous LED operation. For heavier heat sinks or structures exposed to vibration, tape bonding alone should be tested carefully, and additional mechanical support may still be needed.
FAQ
Is this tape electrically conductive?
No. This product is made for thermal transfer and bonding, not electrical conduction. Selected grades can provide electrical insulation and dielectric strength for LED module assembly.
Can it replace screws or clips?
It can replace mechanical fixing in selected light-duty assemblies. Heavy heat sinks, vertical mounting positions or vibration-sensitive designs should be tested before approval.
What affects the real heat transfer result?
Thermal conductivity is only one factor. Bond line thickness, aluminum surface flatness, contact area, bonding pressure and surface cleanliness can all change the final result.
Can the tape be supplied in die-cut shapes?
Yes. High Temp Tapes Company can supply slit rolls, sheets, narrow strips and die-cut pads after confirming drawing size, tolerance, thickness and sample testing requirements.