Rattle-Can Paint Prep: Sanding Orange Peel | BWG
Repair Log 004

Preparing a classic car for rattle-can paint.

The rough paint on this 1985 Chrysler Town & Country had serious orange peel. Sanding the hood and roof exposed primer burn-through, old body filler, and a much bigger prep job than expected.

Quick Answers

What happened during the paint preparation.

Observed

What was wrong with the existing paint?

The hood and roof had heavy orange-peel texture from an earlier DIY paint job. The surface was visibly uneven before I started preparing it.

Completed work

What did I sand?

I worked on the hood and roof, using an orbital sander across broad areas and hand sanding around grooves, edges, and trim details.

Observed after primer

Did primer hide the orange peel?

No. The primer made the remaining texture easier to see. It also showed several places where I sanded through and need to correct the surface again.

Unknown prior repair

What was hiding on the roof?

Sanding exposed a substantial amount of old body filler. I do not yet know what repair or damage is underneath it.

Current status

Has the color coat been applied?

No. The paint project is paused during surface preparation. The unfinished bodywork and the wagon's engine problem both need attention before color makes sense.

Quick Summary

The prep became the project.

I started this job to prepare the wagon for a better rattle-can finish. Once sanding began, the old texture fought back. Primer made the remaining orange peel easier to see, a few areas broke through, and the roof exposed old filler. The color coat can wait until the surface is actually ready.

StatusPaused
Current StageSurface Prep
Biggest ProblemOrange Peel
Next PriorityEngine First
Found on this wagon

What the old paint revealed

Severe orange-peel texture from an earlier DIY paint job.
Primer still showed texture that had not been sanded flat.
Some areas were sanded through the primer and need correction.
The roof contains a lot of old body filler, with the previous repair still unknown.
The hood and roof still need work before any color coat.
My project experience

What actually helped

Orbital sander: faster and easier for me to control across the broad panels.
Hand sanding: still necessary in grooves, around trim, and near edges.
Primer: useful as a visual checkpoint because it exposed texture that remained.
Dust cleanup: constant, unglamorous, and necessary.
Eye and breathing protection: sanding dust does not belong in my lungs or eyes.
Patience: cheaper than burying a bad surface under another paint layer.
What I Did

The paint-prep sequence so far.

Step 01

Start on the hood and roof.

These large, visible panels made the rough texture impossible to ignore. My goal was to level the existing surface instead of covering it again.

Step 02

Try the larger sanding tool.

I began with a giant sanding tool. It worked, but it made an already tiring job feel even bigger and harder to control.

Step 03

Switch to an orbital sander.

The orbital sander was faster, easier, and gave me better control on broad sections of the hood and roof.

Step 04

Hand-sand the details.

The machine could not safely reach every groove, edge, and trim area. Those sections still needed slower hand sanding.

Step 05

Use primer to inspect the surface.

The primer did not hide the orange peel. It made the remaining texture and unfinished areas easier to see.

Step 06

Find primer burn-through.

In a few spots I sanded through the primer. Those areas need another round of correction before paint.

Step 07

Discover the roof filler.

Sanding exposed a lot of old body filler. I do not know what repair it is hiding, so that discovery changed the scope of the job.

Step 08

Pause before color.

The engine problem comes first, and the body is not ready anyway. An unfinished surface is better than rushing color over problems I can still see.

This is a project log, not a complete refinishing procedure. Abrasive selection, primer compatibility, flash time, recoat windows, ventilation, and protective equipment should follow the instructions for the exact products being used.
Lessons from this attempt

What I would repeat

Level visible texture before thinking about color.
Use the orbital sander on broad panels, then slow down around edges and details.
Treat primer as a checkpoint. If the texture still shows, the surface still needs work.
Stop when old filler or an unknown repair changes the job.
Do not let progress photos pressure me into spraying color too soon.
Project status

Where the paint work stands

The hood and roof have been sanded and primed, but they are not finished. Remaining orange peel, primer burn-through, and roof filler all need more attention. For now, the wagon's mechanical problem has priority.

There is also a separate chapter about what happened when an earlier paint attempt went wrong.

Read the Paint Mistake Recovery.

Photo Evidence

Orange peel, primer, and the roof surprise.

Paint preparation underway on the 1985 Chrysler Town and CountryRough paint and orange peel being sanded on the Chrysler wagonPrimer and old body filler exposed during roof preparation
Sources And Evidence

What supports this page.

Observed on this wagonCompleted workManufacturer guidanceStill unknown
Original BWG photos and project notes

The photos and notes document the orange peel, sanding work, primer burn-through, exposed filler, tool change, and paused status.

3M Dry Guide Coat

3M's product guidance explains how guide coat can reveal pinholes, scratches, and uneven filler or primer before top coating.

Rust-Oleum Guide Coat Primer

Rust-Oleum's product page describes using guide coat to highlight low spots, scratches, pinholes, and other surface imperfections during sanding.

Paint Mistake Recovery

The related BWG page documents the earlier paint problem and the recovery work that followed.

Engine diagnosis and repair archive

The low-compression diagnosis explains why mechanical work now takes priority, while the repair archive connects the full project history.

The labels distinguish what I observed and completed on this wagon from general manufacturer guidance. The condition beneath the old roof filler remains unknown, and the color coat has not been applied.

The paint can wait. The prep cannot.

I would rather pause with an honest unfinished surface than bury orange peel and mystery filler under another coat. The wagon will get its color when the body and the engine are ready.