Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1992-11-03
1993-11-09
Lusignan, Michael
Coating processes
With post-treatment of coating or coating material
Heating or drying
427387, 4273886, 4273882, 427409, 427410, B05D 302
Patent
active
052601005
ABSTRACT:
A method of making a screw threaded fastener (1, 10) for fixing cladding to a building includes the steps of applying a mastic covering (5, 15) to a screw threaded portion (4, 13) of the fastener, and applying a non-sticky protective coating (6, 16) to the outside of the mastic covering (5, 15) so as to prevent the fasteners (1, 10) from sticking together during handling and packaging of the same. Preferably the protective coating (6, 16) is as coating of a waxy substance and is applied to the outside of the mastic covering (5, 15) by means of a dipping or spraying process or operation. The fasteners are then easy to use and form a water-tight, moisture and vapor-proof seal with respect to their supports or substrates. The waxy coating (16) may also be applied to the drill point (12) so as to act as a lubricant during driving of the fastener.
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ITW. Ltd.
Lusignan Michael
LandOfFree
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