3M™ 9629B Double Sided Tape – Black PET Tape with Quick Bonding Adhesive 360

Benefits

• Provides reliable bonding to difficult-to-bond plastic surfaces.

• Reduces assembly time through fast initial adhesion.

• Supports metal-to-plastic and plastic-to-plastic bonding.

• Black carrier helps maintain a consistent appearance in dark-colored assemblies.

• Improves dimensional stability during precision converting.

• Offers a thin alternative to mechanical fasteners and liquid adhesives.

• Helps improve manufacturing efficiency in automated assembly applications.

Technical Specifications

Typical Peel Adhesion Performance

Test conditions: approximately 23°C, 2 mil aluminum foil backing, ASTM D3330. Values are typical results from the 3M technical data sheet and are not guaranteed specifications.

Applications

• Bonding low surface energy plastic components.

• Attaching plastic parts to metal surfaces.

• Mounting components on powder-coated painted surfaces.

• Automotive interior and exterior component assembly.

• Electronics and electrical component bonding.

• Appliance nameplates and decorative trim attachment.

• Foam-to-plastic and foam-to-metal bonding.

• General-purpose industrial joining, mounting, and splicing.

• Precision die-cut adhesive components.

Compatible Materials

Low Surface Energy (LSE) Materials

• Polypropylene (PP).

• High-density polyethylene (HDPE).

• Low-density polyethylene (LDPE).

Other Plastics

• ABS plastic.

• Polycarbonate (PC).

• PMMA (acrylic).

• Other compatible engineering plastics.

Metal and Coated Surfaces

• Stainless steel.

• Aluminum.

• Powder-coated painted surfaces.

• Selected painted metal surfaces.

Actual adhesion depends on substrate formulation, surface condition, cleanliness, and application pressure. Testing on production materials is recommended.

Industries

• Automotive and transportation.

• Electronics and electrical equipment.

• Home appliances.

• General industrial manufacturing.

• Plastic component manufacturing.

• Medical device assembly.

• Signage and graphic applications.

• Metal fabrication.

Why Choose 3M™ 9629B?

3M™ 9629B combines the fast bonding performance of Quick Bonding Adhesive 360 with a dimensionally stable black PET carrier.

Its ability to bond difficult-to-adhere plastics such as PP, HDPE, and LDPE makes it suitable for applications where conventional double-sided tapes may struggle to provide sufficient adhesion.

The black polyester carrier also improves handling during converting and helps maintain a consistent appearance in dark-colored assemblies.

For manufacturers requiring thin, high-tack double-sided tape for plastic-to-metal bonding, powder-coated surfaces, or precision die-cut components, 3M™ 9629B offers a versatile industrial bonding solution.

Installation Guide

1. Surface Preparation: Clean both bonding surfaces to remove dust, oil, grease, and other contaminants.

2. Surface Drying: Ensure the substrates are completely dry before applying the tape.

3. Tape Application: Apply 3M™ 9629B evenly to the first substrate.

4. Liner Removal: Remove the natural glassine release liner carefully.

5. Component Positioning: Align the second component accurately before making contact.

6. Pressure Application: Apply firm, uniform pressure to ensure intimate adhesive contact.

7. Bond Development: Allow sufficient time for the adhesive to build bond strength before subjecting the assembly to demanding loads.

For PP, HDPE, and LDPE substrates, test the actual material and surface finish before mass production.

Storage

• Store in the original packaging.

• Recommended storage temperature: approximately 21°C (70°F).

• Keep in a clean, dry environment.

• Protect from direct sunlight and excessive humidity.

• Avoid dust, oil, and other contaminants.

• Prevent excessive pressure or deformation during storage.

• Follow the manufacturer’s shelf-life recommendations. Distributor specifications commonly list a 24-month shelf life; confirm the applicable product documentation for the supplied batch.

FAQ

1. What type of adhesive does 3M™ 9629B use?

It uses 3M™ Quick Bonding Acrylic Adhesive 360 on both sides of a black PET film carrier.

2. What is the total thickness of 3M™ 9629B?

Its total tape thickness is approximately 0.10 mm (4 mil), excluding the release liner.

3. Can 3M™ 9629B bond polypropylene (PP)?

Yes. It is specifically designed to provide strong adhesion to low surface energy materials, including polypropylene.

4. Is 3M™ 9629B suitable for HDPE and LDPE?

Yes. Its Quick Bonding Adhesive 360 is designed for difficult-to-bond surfaces such as HDPE and LDPE.

5. What is the difference between 3M™ 9629B and 9629PC?

Both use Quick Bonding Adhesive 360 and have an approximately 0.10 mm total tape thickness. The main difference is the carrier: 9629B uses a black PET carrier, while 9629PC uses a clear PET carrier. Their release liner constructions also differ.

6. Is 3M™ 9629B suitable for die-cutting?

Yes. Its PET film carrier provides dimensional stability and improves handling during slitting, laminating, and precision die-cutting.

7. Can 3M™ 9629B bond metal to plastic?

Yes. It is designed for bonding dissimilar materials, including metals and many plastics such as PP, ABS, and polycarbonate.

8. Is 3M™ 9629B suitable for powder-coated surfaces?

Yes. It is designed to provide high bond strength to many powder-coated painted surfaces. Actual adhesion should be verified on the specific coating.

9. Is 3M™ 9629B a foam tape?

No. It is a thin double-coated PET film tape with a total thickness of approximately 0.10 mm, not a foam tape.

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Downloads

Available upon request:

• 3M 9629B Tape Technical Data Sheet (TDS)
• Safety Data Sheet (SDS)
• Product Brochure
• Precision Die-Cutting Capability Guide

Please contact our sales team if you require the latest technical documentation.