Match of Pratt and Lambert™ 428B Cornerstone *

The Safety Data Sheet is tied to the MyPerfectColor product chemistry, not to the Pratt and Lambert 428B Cornerstone color name alone. For the SDS, use the MyPerfectColor Safety Data Sheets page here: https://www.myperfectcolor.com/Safety-Data-Sheets/33970.htm. Make sure you are reviewing the SDS for the exact MyPerfectColor product format you plan to order.

Custom-made color matches are made to order, so a MyPerfectColor match of Pratt and Lambert 428B Cornerstone should be confirmed carefully before checkout. These custom matches are not returnable or refundable, so verify the color reference, product type, sheen, and quantity before ordering.

Confirm Pratt and Lambert 428B Cornerstone from a physical swatch, fan deck chip, or another known original color reference rather than from a screen image alone. MyPerfectColor matches the selected brand color reference, so checking the target color first helps reduce the risk of ordering the wrong match. After that, choose the product format and sheen that fit your project.

Use light, even coats for a smoother result with a MyPerfectColor match of Pratt and Lambert 428B Cornerstone. Keep a consistent spray distance, overlap passes slightly, and avoid heavy passes that can cause runs, uneven sheen, or color build-up. Let each coat dry according to the product instructions before applying the next coat.

Coverage for Pratt and Lambert 428B Cornerstone depends on the surface size, texture, hiding power, application method, and how many coats you need. A typical can of spray paint covers about 20 square feet with one coat, while other paints typically cover between 400 and 600 square feet. If the surface is rough, porous, dark, or likely to need more than one coat, plan extra paint.

MyPerfectColor has an original sample of the Pratt and Lambert 428B Cornerstone 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.

MyPerfectColor offers custom spray paint matched to Pratt and Lambert 428B Cornerstone which enables you to conveniently achieve a professional spray-smooth finish. It is difficult to gauge spray paint coverage because it depends on how you apply it and the amount of overspray, but generally the 11oz spray will cover about 20 square feet per coat.

MyPerfectColor uses an acrylic enamel which is a fast-drying durable coating suitable for interior or exterior use. This paint sticks well to most surfaces including metal, plastics, powder-coatings, cabinets and primed or previously painted wood.

While MyPerfectColor can provide paint matched to the Pratt and Lambert 428B Cornerstone, 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.