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SILCOLEASE PSA PRIM 409 must be used with the SILCOLEASE CROSSLINKER , catalysts SILCOLEASE CATALYST and SILCOLEASE CATALYST 62 B, and when required a release control additive, SILCOLEASE RCA3 for instance.
A typical formulation for the primer may be found in the table below. The formulation need to be adjusted depending on the required bath life, coating equipment and backing material. The primer may be coated by direct gravure, wire wound rod or other coating technique suitable for solvent based coatings and must be cured prior to adhesive application. The curing conditions will depend on equipment capabilities, substrate type and formulation.
SILCOLEASE PSA PRIM 409..........................100 parts
SILCOLEASE CROSSLINKER .................1.4-1.8 parts
SILCOLEASE CATALYST.......................….. 3 to 5 parts
SILCOLEASE CATALYST 62 B.......................…..3 to 5 parts
Dilution solvent................................quantity for a.s. 3-8%

Bath preparation:
The solvent used for diluting can be aliphatic or aromatic.It is recommended to charge solvent first and then begin stirring. During stirring the products should be charged successively: SILCOLEASE PSA PRIM 409 first, next SILCOLEASE CROSSLINKER , SILCOLEASE CATALYST and finally SILCOLEASE CATALYST 62 B.

SILCOLEASE PSA PRIMER 409 may be stored at a temperature between -20 °C/ -4 °F and 30 °C/ 86 °F for up to 12 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.

SILCOLEASE PSA PRIMER 409

In certain applications, the anchorage of the adhesive SILCOLEASE PSA 400 to the backing film may be insufficient and the coating of the SILCOLEASE PSA PRIM 409 prior to the adhesive coating may be required.
SILCOLEASE PSA PRIM 409 is a silicone polymer diluted in an aromatic solvent used as an adhesion promoter.
SILCOLEASE PSA PRIM 409 cures by a polycondensation reaction with an organometallic compound and a crosslinker to obtain an elastomeric type coating.

Adhesion;Coating;Heat Protection;High Temperature Protection;Primer

PSA

Fluid

  • Masking tape

  • Splicing tape

Asia Pacific;Europe Middle East Africa;Central and South America;North America

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Dry content29Monocomp%

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