Volkswagen: primer out - plasma in
Source: Volkswagen AG
Automobile construction as an example: in order to improve the adhesion of the adhesive, the final points of the caoutchouk sealing are pre-treated by Openair® plasma.
The reasons for the application of Openair® plasma were obvious for
For our „Golf IV“, we developed an adhesive-bonded additional
door-sealing for the avoidance of wind sounds. This self-adhesive
sealing made of EPDM-caoutchouk should be fastened at the ends with
additional glue dots by a MS adhesive. This caoutchouk has to be
pre-treated in order to improve the adhesive’s adhesion. The
conventional method is the manual application of a priming coat – a
method that is no longer applied by Volkswagen nowadays.
We dicided for Plasmatreat’s in-line technology: If these sealings
are pre-treated by Openair® plasma directly before the adhesive is
applied, this method replaces several process steps. This highly
efficient pre-treatment rendered superfluous not only the normally
necessary pre-cleaning of the adherent, but also the application of
solvent-containing primer coats precedent to the agglutination.
Positive consequences for Volkswagen were: no expiry dates of the
primer have to be considered, no solvent emissions and no logistic
constraints with the supply.
Volkswagen counts on „sturdy processes“. They are the precondition
of an equally high quality of our products. The Plasmatreat method has
the big advantage of reproducibility, if the installation’s parameters
are firmly monitored. As official in charge of adhesives and sealing
agents in process engineering, in this regard I see Openair® plasma as
a very safe and environmentally friendly pre-treatment method.
Plasmatreat North America Inc.
1480 Sandhill Dr., Unit 8,
Ancaster, ON L9G 4V5
Phone: +1 905 304-5200
Fax: +1 905 304-5260
Contact: Mr. Tim Smith
Plasmatreat USA, Inc
2541 Technology Drive, Suite 407
Elgin, IL 60124
Phone: +1 847-783-0622
Fax: +1 847-783-0991
Contact: Mr. Jeff Leighty
Plasmatreat USA, Inc
4th State, Inc.
1260 Elmer Street
Belmont, CA 94002
Phone: +1 650 596 1606
Fax: +1 650 596 1180
Contact: Mr. Wally Hansen