Application of 3M VHB Adhesive or 100% Acrylic Adhesive Foam

1. Surface Cleaning

Proper surface cleaning is essential to guarantee maximum adhesion:

• Wear gloves: Follow the safety data sheet instructions for the cleaner used.
   
• Use appropriate cloths: Choose clean, unscented, and plasticizer-free cloths.
   
• Use specialized cleaners: Opt for a specific cleaner such as 3M™ VHB™ Surface Cleaner. Avoid household cleaners.
   
• Thoroughly clean: Continue cleaning until the surface is completely clean and grease-free. Replace the cloth frequently.
   
• For glass surfaces: Use 3M™ Silane Glass Treatment to clean and treat the glass surface properly.

2. Applying the Adhesive Tape

• Apply without stretching: Unroll the tape without stretching it to avoid air bubbles.
   
• Cut off the touched section: Do not apply the first part of the tape that has been touched. Cut it off before applying.
   
• Apply immediate pressure: Use manual pressure or a roller to apply 20 N/cm² of pressure for effective bonding.

3. Beveled Edge Cutting

When cutting the edges of the tape, follow the recommended angles:

• 50°/40° cutting angle: Use this angle for a proper joint instead of the typical 45°/45°.

4. Trim the Exceeding Edges and Apply Firm Pressure

When finishing the application, trim the excess tape:

• Trim the excess edges carefully.
• Apply firm pressure: Use a roller or manual pressure to reinforce the adhesion after trimming.

5. Removing the Liner and Applying the Second Part

• Remove the liner in one go: This is especially important for transparent tapes to avoid "stop marks".
   
• Do not touch the adhesive surface: Touching it may compromise adhesion.
   
• Apply the second part immediately after liner removal to prevent dirt from contaminating the adhesive surface.

6. Applying the Second Surface

• Apply 20 N/cm² pressure: Ensure constant pressure to avoid air bubbles.
• Correct positioning is essential: Once applied, the piece cannot be repositioned due to the high adhesive strength.

The tape reaches its final bond strength after a specific curing time:

• 72 hours at 20°C: Required for the tape to achieve full strength.
• Accelerated curing: Full bond strength can be achieved in one hour at 65°C.