Loss of Gloss

Causes 

1. Paint swelling.
2. Excessive film thicknesses.
3. Weathering (results of the action of sulphur dioxide or nitrous oxide combined with moisture and/or severe UV radiation).
4. Wrong amount of hardener.
5. Poor or incorrect paintwork care:
   • Incorrect polishing (polish too aggressive, or polished in direct sunlight).
   • Weathered surfaces due to poor aftercare maintenance.
   • Car wash brushes too coarse.
   • Car cleaning agent too aggressive or concentrated. 
6. Newly repaired paintwork weathered too early. Thick coats or newly repaired paintwork are sensitive to condensation (below dew point).
7. Insufficient air circulation during drying.

How to avoid

1. See chapter on “Swelling”.
2. Keep to recommended film thicknesses. Use the Glasurit grey shade concept for poor covering colours (yellow/red). The Glasurit grey shade concept comprises the Glasurit HS primer fillers 285-505 grey, 285-555 black and 285-655 white.
3. Ensure regular paintwork aftercare.
4. Keep to recommended mixing ratios.
5. See chapter on “Aftercare of vehicle paintwork”.
6. Keep to recommended film thicknesses and drying times.
7. Check air circulation, replace floor and ceiling filters if necessary. If in doubt, consult your spraybooth manufacturer.

Repair 

First polish with Glasurit 562-1602 Fine Polishing Paste and finish with a commercially available high gloss polish. If the gloss cannot be restored, you need to repaint.