WATERBORNE TROUBLESHOOTING
Contents
1. wavy effect on faut of es thin a film not 1 oy coat increase air pressure to allowing proper flow ize paint a pani 2 Too much film thickness due to high 2 Decrease spray viscosity viscosity Intersecting cracks penetrate at 1 Low temperature 1 Raise the room temperature paint temperature least one coat in a dried paint 2 High film thickness and part temperature Waterborne cannot be Occurs when the coating becomes applied below 60 F wv rigid before all of the volatiles have 2 Apply less film thickness left the coating Cratering or Defects on the paint surface 1 Silicon contamination 1 Locate source of contamination and eliminate Pinholin small holes in the film 2 Spots of grease on surface 2 Clean surface of part thoroughly g 3 Drops of oil from equipment 3 Clean spray equipment2. PROWEIN oe Barrie Ontario L4N 9A7 ETT i Phone 705 725 0388 Finishing Equipment Inc Fax 705 725 1759 Toll Fee 877 587 6277 WATERBORNE TROUBLESHOOTING PROBLEM DESCRIPTION CAUSE REMEDY Sagging of Film Excessive flow in paint during 1 Over reduction of coating 1 Use less water to reduce heavier viscosity application 2 Application of too heavy a coat 2 Use more passes to build film 3 Excessive fluid flow from gun S Cut back flow rate on gun Dry Spraying Sandpaper like look on the part due 1 Lack of flow Increase fluid flow on gun to flow problems 2 Evaporation rate too fast 3 Slow coating down with inhibitor The ability of a paint to obscure the Over reduction Improper atomization 1 Increase spray viscosity use less water 2 3 Low film thickness T background over which it is Adjust spray equipment applied 3 Increase film thickness with more passes Whitening of the part as it is being Paint drying or flashing too fast Use inhibitor to slow paint down sprayed 2 High temperature and humidity 2 Decrease room temperature and humidity The degree to which a surface 1 Low gloss overreducing Increase spray viscosity use less water reflects light 2 Low gloss film thickness Use more passes 3 High gloss high film thickness 3 Decrease paint flow 4 Spotty low gloss overbaking 4 Regulate oven temperature and airflow 1 Orange Peel A pebbled or
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