Method for obtaining adhesion of urethane sealant to a painted o

Details Method for obtaining adhesion of urethane sealant to a painted o Method for obtaining adhesion of urethane sealant to a painted o

1988-03-11

1989-08-15

Bell, Janyce

Coating processes

With pretreatment of the base

Preapplied reactant or reaction promoter or hardener

10628713, 10628716, 10628732, 156329, 1563317, 252184, 4274071, 4274072, 4274121, B05D 310, C09J 314

Patent

active

048573663

ABSTRACT:
A method is disclosed for treatment of a painted or a glass surface providing improved adhesion of a urethane sealant applied thereafter, comprising applying a solution containing p-toluenesulfonic acid, optionally an organofunctional silane, and an appropriate solvent to the painted or the glass surface, the painted surface being cured and devoid of a resin coating, and thereafter contacting the painted or the glass surface with the urethane sealant. A method for joining painted and glass surfaces using a urethane sealant is also disclosed. Compositions useful within these methods are also described.

REFERENCES:
patent: 3959242 (1976-05-01), Watts et al.
patent: 4049861 (1977-09-01), Norari
patent: 4409266 (1983-10-01), Wieczorrek et al.

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