Match of Sherwin Williams™ UO03 Rock Bottom *

Choose the sheen based on how you want the finished item to perform, not just on the color name. In MyPerfectColor paint matched to UO03 Rock Bottom, a flatter finish will usually hide surface flaws better and reduce reflectivity, while a glossier finish is easier to wipe clean but will show more texture, roller or spray pattern, and prep marks.

Because UO03 Rock Bottom is a dark color, gloss level can change how it reads on the finished part more noticeably. For small items such as vents, brackets, hardware, pipe, or trim pieces, pick the sheen that best matches the surrounding surface and the expected wear, then order that finish specifically.

Before applying a match of UO03 Rock Bottom to metal or over an existing coating, clean the surface well so dust, oil, and other contamination do not interfere with adhesion. If the metal is bare or rusted, remove loose rust and treat the surface as needed before painting.

If you are coating over a sound existing finish, scuff sanding usually helps the new coat grab. The gloss, texture, and condition of the old coating can affect the final appearance of MyPerfectColor paint matched to UO03 Rock Bottom, so test a small area first when the part will sit next to other finished pieces.

The SDS is tied to the MyPerfectColor product or chemistry you are ordering, not to the UO03 Rock Bottom color name by itself. If you need the safety information for the actual paint product, use the MyPerfectColor Safety Data Sheets page for the specific formula you plan to buy.

You can find it here: MyPerfectColor Safety Data Sheets. Review the SDS before spraying, especially if you are working on a project with limited ventilation or handling multiple coating products.

Use light, even coats when spraying a match of UO03 Rock Bottom. Keep the can moving, overlap each pass consistently, and avoid trying to cover in one heavy pass. Heavy coats can cause runs, uneven sheen, and a darker or muddier look on the finished part.

This matters most on items like speaker grilles, access panels, gutters, downspouts, railings, brackets, hardware, and other small parts where spray build can be seen quickly. For a cleaner result, let each coat flash before the next pass and keep the spray angle and distance as consistent as possible.

Before ordering MyPerfectColor paint matched to UO03 Rock Bottom, confirm the brand color reference, the product format, the sheen, and the quantity. A custom color match is made specifically to your chosen reference, so choosing the wrong finish or product type can lead to a result that does not fit the project.

Custom-made color orders should be selected carefully because they are not returnable or refundable once made. If the part will be matched to an existing painted surface, double-check the exact reference and the surface type before you place the order.

MyPerfectColor has an original sample of the Sherwin Williams UO03 Rock Bottom 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 UO03 Rock Bottom. 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 UO03 Rock Bottom, 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.