COLOR CODE98/WA800J/GBN - White Diamond Pri Metallic Tri-coatGMC Touch-Up Paint

The Look

This is not your average work-truck white. If you drive a Yukon, Sierra, or Acadia from the 2012 era, you know this color was the badge of the Denali and high-end trim levels. It has a creamy, rich depth that makes the vehicle look substantial and expensive. While a standard white hides dirt well, this specific finish is designed to catch the sun and show off the body lines of your GMC. Since your vehicle has been on the road for over a decade, the original finish has likely developed a unique character from sun exposure, so matching it requires a bit of patience and a steady hand.

Technical Details

You are dealing with a complex Pearl finish. This is a three-stage system, meaning it uses a solid base color followed by a translucent mid-layer packed with reflective flakes. This is where most people run into trouble. If you apply the mid-layer too thick, the repair will look yellow or dark compared to the rest of the truck. If you go too thin, it stays flat and loses that signature glow. Before you spray or dab GMC White Diamond Pri Metallic Tri-coat (check for code 98/WA800J/GBN), you need to shake it for 60 seconds to ensure the heavy pearl particles are fully suspended in the liquid.

Best Practices

First, find your confirmation. Open your glove box and look for the silver Service Parts Identification sticker; the code is usually at the bottom next to the "BC/CC" label. When you start the repair, work in a cool Garage or a spot of Shade to keep the paint from drying too fast. Test the color on the included card first to see how many layers of the mid-coat you need to reach the right shade. When applying, keep the container moving at all times to prevent the pearl flakes from bunching up and creating dark spots. Use light, thin passes and allow plenty of drying time between each layer to build the depth slowly.