COLOR CODE521 (1970) - Pure WhiteGMC Touch-Up Paint

The Look

Your 1970 GMC truck was built to work, and this color is the uniform it wore to the job site. This is a bright, honest white that defined the utility of the Action Line era. It doesn't try to be fancy with cream or beige undertones; it provides a clean, sharp contrast against the chrome and trim of a classic C-Series. Since your truck has been on the road for over half a century, expect the original finish to have its own character, but this white remains the standard for a factory restoration.

Technical Details

This is a solid finish. You won't find metallic flakes or pearl shifts here, which is a massive advantage for your repair. Since there are no metal particles to manage, you don't have to fret over how the light hits the repair from different angles. However, solid white is a snitch. It shows road grime and every slight ripple in your bodywork. If your sanding isn't level, the white will reveal the flaw. The benefit is that matching a solid is simpler than a complex metallic.

Best Practices

To confirm your color, look for the Service Parts Identification sticker inside your glove box door. Before you spray or dab GMC Pure White (check for code 521 (1970)), you need to shake it for 60 seconds. This ensures the pigments are mixed and ready to cover. Test the color on the included card to see how it looks next to your aged paint before you touch the truck. When you start, keep the container moving to ensure the paint lands in thin, even layers. Work in a garage or the shade to keep the surface cool, and give it plenty of drying time between layers to avoid runs.