Match of Sherwin Williams™ NN18 Dover White *

Confirm Sherwin Williams NN18 Dover White from a physical swatch, a known painted sample, or another trusted original brand reference before you order. MyPerfectColor makes a custom match to the selected brand color reference, not to what the color may look like on your screen. If you are matching an existing part that has aged, changed sheen, or collected dirt, compare against the original reference when possible because the current surface can look different from the standard color.

For Sherwin Williams NN18 Dover White, use light, even coats and keep your passes consistent so the paint builds gradually instead of flooding the surface. Overlap each pass evenly and avoid heavy wet coats that can cause runs, uneven sheen, or a muddy-looking finish. Follow the directions on the MyPerfectColor spray can for distance, recoat timing, and drying between coats.

Yes, Sherwin Williams NN18 Dover White can be used on many plastic parts, but plastics vary a lot and the surface may need different prep or primer steps. Test on the actual plastic first if possible. Cleaning, scuffing when appropriate, and using the MyPerfectColor primer for acrylic enamel can improve adhesion, especially on difficult or low-energy plastics. Because plastic types differ, do not assume one prep method will work on every part.

Before applying Sherwin Williams NN18 Dover White over metal or an existing coating, clean the surface well and remove rust, oxidation, grease, dust, and other contamination. If the surface is glossy or the old coating is sound but slick, scuffing can help the new finish bite. The condition of the metal or old coating matters because gloss, texture, and surface defects can change how the matched color looks after application.

Finish changes how Sherwin Williams NN18 Dover White reflects light, so the same color can read differently depending on the sheen used. A glossier finish reflects more light and can make surface texture and application marks more visible, while a lower sheen reduces reflectivity. When ordering, choose the finish that fits the part and the way the surface needs to perform, because sheen is a practical coating variable, not just a style choice.

MyPerfectColor has an original sample of the Sherwin Williams NN18 Dover White in its color archive. This enables us to make paint and verify that it matches the original.

Please note that if your material is not new then the paint may not work for touch up as your material has aged and is likely different than it was when new. Learn more about our color matching accuracy. If you need a touch up application, send us a part and we can create a touch up solution precisely matching the current color and sheen of your specific materials.

Learn more about our color matching service.

To make spray paint matched to Sherwin Williams NN18 Dover White. MyPerfectColor uses an acrylic enamel which is a fast-drying durable coating suitable for interior or exterior use. MyPerfectColor custom spray paint enables you to conveniently achieve a professional spray-smooth finish in any color in any sheen. It sticks well to most surfaces including metal, plastics, powder-coatings, cabinets and primed or previously painted wood.

The 11oz spray will cover about 20 square feet per coat. Keep in mind that it is difficult to gauge how much spray you'll need as it is highly dependent on how it is applied. It is better to have too much than run short.

While MyPerfectColor can provide paint matched to the Sherwin Williams NN18 Dover White, we don't provide any crossover information because this is a subjective determination. Every paint company offers its own unique selection of colors and rarely does a color have an exact equivalent in another company's color collection, so determining which color is the best approximation is a judgement call.

However, under the color image on a color page there is a link that says "Explore Related Colors". Clicking this link displays colors with similar values and you can look for any colors from the company you want.

Keep in mind that this just shows similar colors based on the color values we have stored in our database. It doesn't mean it is the same or give any approximation about how close the color is. You can play around with the Hue, Lightness and Chroma sliders to expand the selection.