Repair Process: Remove areas lifted and refinish.

Use waterborne undercoats to repair extremely sensitive finishes.

Avoid applying undercoats or topcoats excessively wet.

Allow enamels or urethanes to thoroughly cure before recoating or attempting a repair.

DO not exceed a products maximum recoat time before recoating or after application.

Exceeding maximum flash or re-coat times during applications.

Re-coating a basecoat/clear coat finish, where existing clear coat has insufficient film build.

Re-coating enamels or urethanes that are not fully cured.

It’ll also sometimes happen when you re-coat a basecoat/clear coat finish where the old clear coat had an insufficient film build.Ĭauses: Solvents in a newly applied product attack the previous finish causing wrinkling, raising, or puckering of the paint film due to: You’ll most likely see this malady when re-coating enamels or urethane's that are not fully cured, or if and when you exceed the maximum flash (dry) or re-coat time during application. This is caused by the solvents in the new finish attacking the old finish. Wrinkling, often called lifting, is when an existing paint layer shrivels during the application of a new finish or as the new finish dries. Identification: The existing paint film shrivels, wrinkles or swells during new finish application or drying. Lifting – Wrinkling, Raising, Alligatoring, Shrivelling, Swelling.

Or, apply acrylic lacquer primer surfacer thinned with non-penetrating thinner, sand smooth and refinish.

Or, apply waterborne primer surfacer, sand smooth and re-finish.

Isolate affected area with two component primer surfacer and refinish.

(Final sand with 400 or finer grit sandpaper).

Sand sooth or remove the affected area.

Avoid sanding through insoluble topcoat colour or clear, exposing solvent sensitive or soluble finishes.

Use 400 or finer grit sandpaper when featheredging.

Use acrylic urethane primer surfacer, waterborne primer surfacer or an acrylic lacquer primer surfacer thinned with non-penetrating thinner over sensitive substrates.

If any of these reactions occur, the following recommendations should be considered: Finishes susceptible to lifting will soften, wrinkle or shrivel as lacquer thinner is applied. Prevention: Check questionable finishes by rubbing a small inconspicuous area with a shop towel saturated with lacquer thinner. You’ll recognize it as a wrinkled area outlining a repaired area.Ĭause: Solvent from the new topcoat penetrates a solvent sensitive substrate causing a lifting or wrinkling that outlines the feather-edge.

Identification: Raised or lifted edges in the wet or dry paint film that outline sand-throughs or feather-edges. Hopefully the following information will help some of us novice painters identify and with any luck rectify any situations that’d otherwise could have us tearing our hair out or tossing our spray guns in the trash bin. Much of this can depend on the painter’s craftmanship and experience. Factors in the paint process/working environment can also affect the end result such as humidity, temperatures, dry times, film thickness ect. So, it’s a good idea to learn some of the causes and cures. Incorrectly prepared substrates and use of paint materials can result in a flawed paint job and let’s face it we all make mistake.

With this in mind, we decided to try and put together a bit of a primer (no pun intended) referencing some of the most common paint problems many of us have or will encounter during the course of any paint job or jobs. But this kind of tough when you’re a hobbyist who may only paint one vehicle a year. Painting is an art that’s perfected by practice.

By studying paint defects, you can identify possible causes in the workshop or garage and help find solutions to avoid such problems in the future.

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