GMC White Diamond Pearl Tricoat (WA800J/98/GBN) Touch Up Paint

The Look

If you drive a 2014 or 2015 GMC Sierra, Yukon, or Acadia, you likely recognize this color as the hallmark of the Denali trim. It is not a basic, flat white. It carries a warm, creamy undertone that feels more like fine jewelry than a truck finish. Because your vehicle has likely seen a decade of sun and road salt, the original finish has matured. This color is excellent at hiding light road dust, but when it gets chipped, the dark primer underneath stands out like a sore thumb. Since this is a premium look, a quick dab of standard white paint will look like a mistake. You need the depth that only a multi-layer approach can provide.

Technical Details

This finish is a Pearl Tricoat, which is the most complex category of paint you can encounter. It relies on three distinct layers to create that deep, glowing effect. You have a solid base layer, a semi-translucent mid-layer filled with pearl flakes, and a final clear layer for protection. The challenge here is the pearl layer. If you apply it too thick, the repair will look too yellow or dark. If you apply it too thin, the spot will look flat and won't catch the light like the rest of your Yukon or Sierra. The goal is to build the color slowly rather than trying to cover the damage in one heavy pass.

Best Practices

Before you spray or dab GMC White Diamond Pearl Tricoat (check for code WA800J/98/GBN), you need to shake the container for at least 60 seconds to ensure the pearl flakes are not clumped at the bottom. You can find your paint code on the silver or white sticker located inside your glove box; look for the "BC/CC" heading. Whether you are working in your garage or a patch of shade, always test the color on the included card first. This allows you to see how many layers of pearl you need to match your specific vehicle's aging. When applying the paint, keep the container moving to avoid puddles or heavy spots. If you use a pen or brush, use light, sweeping strokes. Give each layer plenty of drying time before adding the next. Pushing the process will only lead to a finish that looks textured or uneven.