Datasheet

Page 2
Description Packaging Order Code Shelf Life
DCA Conformal Coating 200ml Aerosol DCA200ML 36 Months
1 Litre Bulk DCA01L 48 Months
5 Litre Bulk DCA05L 48 Months
Conformal Coating Thinners 1 Litre DCT01L 36 Months
5 Litre Bulk DCT05L 36 Months
Conformal Coating Removal Gel 1 Litre Bulk CCRG01L 36 Months
Directions for Use
DCA can be sprayed, dipped or brushed. The thickness of the coating depends on the method of application
(typically 25-75 microns). Temperatures of less than 16°C or relative humidity in excess of 75% are unsuitable
for the application of DCA. As is the case for all solvent based conformal coatings, adequate extraction should
be used (refer to MSDS for further information).
Substrates should be thoroughly cleaned before coating. This is required to ensure that satisfactory adhesion to
the substrate is achieved. Also, all flux residues must be removed as they may become corrosive if left on the
PCB. Electrolube manufacture a range of cleaning products using both hydrocarbon solvent and aqueous
technology. Electrolube cleaning products produce results within Military specification.
Spraying – Bulk
DCA needs to be diluted with the appropriate thinners (DCT) before spraying. The optimum viscosity to give
coating quality and thickness depends on the spray equipment and conditions, but normally a dilution ratio of
2:1 (DCA:DCT) is required. Suitable spray viscosity is typically 50-80mPa s. If bulk coating material has been
agitated, allow to stand until air bubbles have dispersed. DCA is suitable both for use in manual spray guns and
selective coating equipment.
The selected nozzle should enable a suitable even spray to be applied in addition to suiting the prevailing
viscosity. The normal spray gun pressure required is 274 to 413 kPa (40 - 60 lbs/sq.inch). After spraying, the
boards should be placed in an air-circulating drying cabinet following the curing schedule highlighted on page
4/5.