Method for masking in painting process and masking tool therefor

Details Method for masking in painting process and masking tool therefor Method for masking in painting process and masking tool therefor

1984-09-26

1985-10-22

Lawrence, Evan K.

Coating processes

Nonuniform coating

Mask or stencil utilized

118505, B05D 500, B05D 132, B05C 1708

Patent

active

045488380

ABSTRACT:
In a masking technique used in painting processes, a flexible masking sheet is held in place and in shape by the tension on wires fixed to the sheet. The tension is generated by a tensioning device which acts as a ratchet allowing only increases in tension at room temperature and which loses ratcheting effect at higher temperatures. The tensioning device may employ a wax-actuated clutch which is rigid at room temperature but which gradually loses rigidity, thus slowly releasing tension, as temperature increases. Alternatively, the tensioning device may remain perfectly rigid until a higher temperature prevails. A workpiece can be masked and painted at room temperature and then cured and/or dried at a higher temperature, at which time the mask can be easily removed.

REFERENCES:
patent: 3192896 (1965-07-01), Irving
patent: 4411219 (1983-10-01), Keith et al.

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