Problem: Fish Eye -
Fish eye is pretty recognizable – they’re small crater-like holes in the paint surface, typically larger than pinholes – and they look like a fish eye. The most common cause of fish eye is contamination – on the substrate, in the gun, in the air. The only way to fix it is to sand below the actual fish eye, thoroughly clean the surface and all of your equipment, and then shoot again.
Problem: Orange Peel -
Orange peel is a pebbled and uneven surface in the paint coat, similar in appearance to the peel of an orange. The most common causes of orange peel are poor spraying technique and not using enough reducer. If you’re experiencing orange peel, sand the surface and spray again. Before spraying again, be sure you’re using a proper spraying technique (you’re far enough, but not too far from the surface. 10-12 inches in a good distance), and be sure to use enough reducer. On the topcoats, we recommend starting at around 20-30% on the reducer.
Problem: Pinholing -
Pinholes are small cavities, less than 1 mm in diameter, and generally occur in the primer coats. Typically pinholing occurs when too much product is piled on too quickly. To correct this, you’ll need to sand down the pinholed areas and reshoot. Before reshooting the product, be sure the area you’re respraying is smooth. Make sure the primer is mixed correctly and allow plenty of dry time between coats.
Problem: Product is slow drying -
The primer and paint coats are taking an inordinant amount of time to dry or they’re failing to harden completely. If the product is slow to dry, generally there’s been insufficient drying time between coats, the ambient temperature is too low, incorrect mixing ratios have been used, or the incorrect catalyst has been used. To correct a drying problem, try moving the plane to a warmer and well-ventilated area. Turning on a space heater might help, but exercise caution. Don’t leave the space heater unattended, and don’t get it too close to the airplane.