During foaming process holes are covered by adhesive tape to avoid the PU foam from squeezing out.
Hole Covering

Hole Covering

Covering holes as well as gaps in a PS body or door prevents the PU foam from squeezing out during injection.



During the injection process, PU foam can squeeze out of gaps and holes. To prevent this from happening, all holes and gaps on the PS body and door need to be covered. A tape that bonds well to the PU foam should be used to effectively prevent the foam from squeezing out.

The tape used should be hand tearable with a tacky adhesive for secure sealing.

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Products

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tesa® 4287

Specifications
MOPP
natural rubber
79 µm
35 %

tesa® 4289

Specifications
MOPP
natural rubber
144 µm
35 %

tesa® 4298

Specifications
MOPP
natural rubber
114 µm
35 %

tesa® 4309 PV1

Specifications
slightly-creped paper
natural rubber
170 µm
12 %

tesa® 4323

Specifications
slightly-creped paper
natural rubber
125 µm
10 %

NOPI® 4349

Specifications
slightly-creped paper
natural rubber
110 µm
10 %

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