Double Sided Butyl Rubber Tape
OPALUS PACK is a manufacturer of double sided butyl rubber tape for bonding and sealing inside assembled joints. This carrier-free butyl adhesive tape has tack on both sides, so it is placed between glass, metal, plastic, or sheet materials instead of covering only one outer surface. It is made for panel overlaps, profile contact lines, and concealed seams where both contact faces need pressure-sensitive adhesion, compression fit, and a continuous internal seal.
- Material: carrier-free butyl rubber adhesive
- Color: black, grey, or white
- Thickness: 0.5mm-3.0mm
- Width: 10mm-100mm
- Liner: release paper or release film
- Use: internal glass, metal, plastic, and panel joints
Comprehensive Technical Data for Butyl Sealant Tape
Product Overview
Double sided butyl rubber tape is positioned between two substrates during assembly. Both adhesive faces remain tacky before bonding, and the soft butyl layer forms an internal contact seal after the upper material is pressed into place. This keeps the product positioning away from exposed roof repair or ordinary surface patching. Typical uses include glass-to-metal contact lines, rigid PVC sheet joints, polycarbonate overlaps, aluminum profile gaps, painted metal seams, and sheet-to-sheet bonding areas.
The tape has no foam core, fabric center, or hard carrier. This carrier-free structure allows the butyl layer to deform under pressure and follow minor unevenness when two rigid surfaces do not meet perfectly. In sample roll checks, 0.5mm-0.8mm tape fitted better in tight sheet joints, while 1.0mm-2.0mm tape gave stronger contact on small profile steps after roller pressure. The release liner protects both adhesive faces during slitting, winding, storage, and installation, helping reduce dust pickup before the second material is applied.
Benefits
- Bonds two contact surfaces at the same time for concealed joint sealing.
- Soft butyl adhesive compresses into small gaps, tool marks, and uneven contact lines.
- Pressure-sensitive bonding reduces liquid sealant mess and needs no heat curing.
- Release paper supports smooth unwinding, cleaner handling, and controlled liner removal.
- Flexible internal seal helps reduce water contact paths and air leakage inside overlaps.
- Thickness, width, liner type, and roll length can be selected by joint gap and assembly pressure.
What Thickness and Width Should Be Selected for Overlap Sealing?
The right size depends on overlap length, surface rigidity, joint gap, and compression pressure. Thin double sided butyl rubber tape is used when two smooth sheets fit closely together. A thicker grade is more useful when the tape must fill uneven gaps between glass, metal, plastic sheet, or profile contact areas. Narrow rolls work well for frame edges, glazing channels, aluminum profiles, and board seams. For panel overlaps, wider rolls give more contact area and help maintain a continuous sealing line without being squeezed completely out after compression.
TDS / Technical Data Sheet
| Item | Typical Value |
|---|---|
| Product Type | Double-sided pressure-sensitive butyl rubber tape |
| Structure | Carrier-free butyl adhesive layer with release liner |
| Adhesive Surface | Adhesive on both sides |
| Standard Color | Black, grey, white |
| Thickness Range | 0.5mm-3.0mm |
| Width Range | 10mm-100mm, wider slit width on request |
| Roll Length | 5m-30m, depending on thickness and width |
| Liner Type | Siliconized kraft paper or release film |
| Application Temperature | 5C-40C recommended |
| Service Temperature | -30C-80C typical reference range |
| Peel Adhesion | 8-18 N/25mm typical factory test range |
| Static Shear Holding | 24 h observation under light assembly load |
| Liner Release Force | Smooth peel, no adhesive transfer in sample roll check |
| Compression Behavior | Soft flow into minor gaps after roller pressure |
| Water Contact Check | No visible edge opening after 24 h sample observation |
| Recommended Surface | Clean, dry, oil-free glass, metal, PVC, PC, acrylic, painted metal |
Applications
- Glass-to-metal sealing in frame, display, panel, and assembly contact areas
- Metal panel lap sealing where both overlapping surfaces need tack and compression
- Plastic sheet lap sealing for rigid PVC, polycarbonate, acrylic, and selected engineered plastics
- Aluminum profile gaps where soft pressure-sensitive butyl joint tape is required
- Board-to-board contact lines with small uneven gaps or narrow concealed seams
- Non-structural sheet joints that need bonding and internal sealing before mechanical fixing
How Should Double Sided Butyl Rubber Tape Be Applied Between Two Substrates?
Good installation starts before the liner is removed. The surface should be dry, clean, and free from oil, dust, loose coating, moisture, and release agents. After the tape is aligned, remove one liner and press the tape onto the first substrate without stretching it. Peel away the second liner only when the upper panel, glass, metal strip, or plastic sheet is ready. A hand roller or steady edge pressure helps the butyl layer flow into minor surface irregularities and form a continuous internal seal. Low-energy plastics, powder-coated metal, and textured surfaces should be tested before batch use.
FAQ
Is this tape designed for exposed surface patching?
No. This tape is designed to sit between two substrates. It works best where both adhesive faces are compressed inside the joint.
Can it bond glass, metal, and plastic together?
Yes. It can be used with glass, aluminum, steel, painted metal, rigid PVC, PC, and acrylic after surface compatibility testing.
Does the tape need heat curing?
No. Clean surfaces, firm compression, and correct liner removal are more important than heat curing.
Can it replace screws or structural adhesive?
No. It is used for sealing and contact bonding, not structural load bearing. Mechanical fixing may still be required under long-term stress or movement.