Does Fender Sheet Metal Painting Need to Be Removed?
2 Answers
Fender sheet metal painting does not need to be removed. Thinner: Appropriate amounts of matching specialized thinner can be added; additionally, the spray gun pressure should be appropriately lowered; the nozzle should be about 30cm away from the surface being painted and sprayed vertically. Hardener: Adding too much hardener may also cause an orange peel effect, so the amount of hardener should be appropriately reduced. Adjusting Boiling Point: If the surface temperature being painted or the ambient temperature is too high, causing the thinner to evaporate too quickly after spraying, resulting in resin loss and pigment clumping, which leads to an orange peel effect, adjusting the ratio of thinners with different boiling points can help alleviate this issue.
I've been working in repair shops for years. Whether to remove the fender for painting depends on the location of the damage. For small scratches on the surface, the technician can simply mask it with tape and spray directly on the car, saving time and money. But if the dent is severe or the inner wheel arch is damaged, you definitely have to remove it! Last time my car was scratched, there was no way to smooth out the dent inside without removing it. Taking off the fender allows 360-degree sanding, more even paint application, and reduces the risk of bubbles later. However, be careful with the clips during removal—plastic parts can break easily if they're aged.
