I first saw mention of the Parker Process about 15 years ago on the decal of bicycle frames manufactured by Miki Seisakusho of Sakai, Japan. This decal appeared on frames from the early 1980s.


Back then I searched the internet and did not find any thing about the Parker Process.

Recently I was sorting through some old images that I copied from the internet and rediscovered this brochure from Rollfast circa 1936.

Rollfast Bonderize 1

Rollfast Bonderize 2-3

Rollfast Bonderize 4

Thanks to Nostalgic.net for preserving images of these types of documents.

The process comes from Parker Rust Proof Company of Detroit, Michigan. The target market for the process were car and truck manufacturers, but other steel products use the process.

The Parker Process is a type of bonderizing. Bonderizing holds paint to steel. The Parker Process also inhibits rust. The Parker Process also allows for different types of paint to be used.

Some people repaint vintage bicycle and start by stripping off the original paint.
If the frame was bonderized, what happens to the bonderizing if you strip the original paint from the frame?