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tesa® 51109

Tough Pre-Bond Masking Tape

Product description

tesa® 51109 is a tough PET masking tape to reliably mask off the c-side (back side of molded parts) of attachment parts to prevent paint overspray from getting on areas of the bonding area. tesa® 51109 masking tape stays in place during the entire paint process including a power wash step. Fast removal in one piece without any adhesive residues even after various oven cycles or pre-treatment of attachment parts.

Main applications

Prevention of paint overspray to get on areas of the (USW) bonding area as this makes the bonding of parts in the car interior and exterior very challenging. USW-Welds or liquid glue require a clean and unpainted plastic surface to ensure a secure bonding.

Technical properties

Elongation at break

130 %

Type of adhesive

thermosetting natural rubber

Tensile strength

80 N/cm

Total thickness

80 µm

Backing material

PET film

Adhesion to steel

3.73 N/cm

Temperature resistance

160 °C

Rating properties



Sharp colour edge


Suitable for die cutting


Powerwash resistance


Hand tearability


Smooth colour edge


Paint anchorage


Easy to remove


tesa® products prove their impressive quality day in, day out in demanding conditions and are regularly subjected to strict controls. All technical information and data above mentioned are provided to the best of our knowledge on the basis of our practical experience. They shall be considered as average values and are not appropriate for a specification. Therefore tesa SE can make no warranties, expressed or implied, including, but not limited to any implied warranty of merchantability or fitness for a particular purpose. The user is responsible for determining whether the tesa® product is fit for a particular purpose and suitable for the user’s method of application. If you are in any doubt, our technical staff will be glad to support you.

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