Maintaining Old & Porous Paint Jobs

Professional paint job maintenance using state-of-the-art technology.

As auto paint ages, it becomes porous. When new paint is applied to the surface it has a tendency to soak into the old finish causing uneven color and gloss effects. Sealers provide a uniform base so the new paint sets up evenly with good "hold-out" from the old finish. This gives consistent color and gloss throughout the entire painted surface. Primer sealer also provides an excellent material for the new paint to chemically bond to, thereby insuring good adhesion.

Poly-Lok auto body paint primer sealer

Maaco's state-of-the-art, two-component primer sealer is the industry's best substrate for new paint. Its tight molecular structure gives a base that is virtually impenetrable, so new paint will set up with a great look all over. You can’t get a more chemically compatible surface for your new paint.

Clear Coat Delamination

Delamination process for clear coat finishes.

Clear coat paints have their own timeline when it comes to delamination, a peeling away of the top surface. Frequently, this timeline is based on the amount of exposure to the sun. Other times, this effect results from a manufacturer defect.

The delamination process begins with pockmarks on the paint surface. Then, the clear coat separates from the pigment. Finally, the paint peels in small or large sheets. This accelerating process exposes the metal to moisture and the sun, and can lead to rust.

What is Cracking?

Prevent further auto body paint damage by maintaining your vehicle paint finish.

Cracking usually occurs when a car is 3 to 6 years old. It is found most commonly on the upper panels, which are readily exposed to the sun. It is the sun’s UV rays that hasten the breakdown of auto body paint.

Cracking begins slowly. But once the process is set in motion, it moves quickly. That’s why the sooner you treat this problem, the better!

As you can see from the timeline below, cracking begins with microchecking – microscopic breaks in the paint. It’s easy to mistake microchecking for the less serious problem of paint fading.

Cracks must be treated or they will spread and cause the metal below to rust and pit. To ensure the cracks don’t return, the affected area must be stripped down to bare metal before painting.

The problems with painting over cracking

There are two basic reasons why it is undesirable to paint over cracks:

  • Glossy auto paint will magnify the problem.
  • The very act of painting causes solvents to seep into and open up the cracks, magnifying the problem.