tesa^® 54321

Product description

tesa^® 54321 is a thick PET-fleece with acrylic adhesive. This product is optimized for the automotive industry to cover venting holes.
The product is designed as a die cut, where the inner ring zone is free of adhesive to generate the venting effect. The outer ring zone is coated with a strong adhesive to ensure permanent bonding.

Features:

• High air permeability (DIN EN ISO 9237): ≥ 2360 L/m²s
• Strong adhesive ensures permanent bonding even at high stress
• Thick PET-fleece prevents PU-foam from oozing out during infusion process
• Reduces cleaning and rework

Main applications

Expanding PU-foams are often used to reduce NVH (noise, vibration, harshness) and provide additional stiffness by local reinforcement of body structures for crash and energy management.
tesa^® 54321 venting tape prevents squeezing out of the PU-foam during the infusion and foaming process by allowing air flow through the non-coated fleece backing and thereby avoiding excess pressure.