Match of Behr™ 8604 Thunder Grey *

Actual color may vary from on-screen representation. Please view a physical color swatch or material sample to confirm your color choice prior to purchase.

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A match of Behr 8604 Thunder Grey is a deep, cool gray with very low chroma and a slight blue-violet cast. With an LRV of 6.31, it reads dark rather than medium, and the restrained undertone keeps it from looking warm or brown.

MyPerfectColor custom spray paint matched to Behr 8604 Thunder Grey is a practical fit for small or removable parts that need a dark neutral finish, such as vents, speaker grilles, switch plates, access panels, railing components, brackets, mailboxes, frame trim, shelving hardware, PVC pieces, and furniture accents. It can also help coordinate mixed materials when metal, plastic, wood, or previously coated parts need to read as one consistent color after proper prep.

Because this is a dark color, surface condition and sheen will affect the final look. Gloss or satin finishes can make scratches, texture, and substrate variation more noticeable, and an even film build helps the color read uniform. On darker or uneven surfaces, careful prep and coverage matter more than they would with a lighter gray.

Product Data

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About BEHR Paint

BEHR is a dynamic company that actively embraces quality and innovation to bring the paint industry the very best products and services. Their bold entrepreneurial spirit and commitment to integrity and to doing the right thing has been the cornerstone of their success since 1947. BEHR enjoys great brand presence and a reputation for unparalleled quality, innovation, value and performance. People know and love the BEHR brand.

Matching BEHR Paint Colors

MyPerfectColor is able match all of the BEHR paint colors so you can find and enjoy the colors you love. MyPerfectColor uses its expert capabilities to recreate the original BEHR color by matching the original BEHR color books and swatches. MyPerfectColor is not using BEHR paint.

The colors shown on this website are computer video simulations of the BEHR Color and may not match BEHR Color standards. Refer to BEHR Publications to obtain the accurate color. Please know that MyPerfectColor is matching the original BEHR color. If you intend to touch up paint that has been on your walls for years, know that your color has undoubtedly changed from the original due to exposure to light and age and the new paint may not match. You will achieve best results by re-coating the entire surface.

If you need more assistance, please feel free to contact us and one of our expert staff would be happy to help.

Frequently Asked Questions About Match of Behr™ 8604 Thunder Grey *

Where can I find the SDS for Behr 8604 Thunder Grey when I order a MyPerfectColor match?

The SDS is tied to the MyPerfectColor product and chemistry, not to the Behr color name alone. For 8604 Thunder Grey, use the Safety Data Sheet for the exact MyPerfectColor format you are ordering, such as spray paint or another matched product.

If you need the sheet before buying, MyPerfectColor Safety Data Sheets are available here: https://www.myperfectcolor.com/Safety-Data-Sheets/33970.htm

Why can Behr 8604 Thunder Grey look different after I apply a MyPerfectColor match?

Even when the color match is correct, 8604 Thunder Grey can read differently after application depending on lighting, sheen, surface texture, and nearby surfaces. Daylight, warm indoor light, and LED light can all shift how the finished item appears.

If the painted part will sit next to an existing surface, expect aging and gloss differences to matter too. For the lowest risk, evaluate the finished piece in the same lighting where it will be used.

Can I use a MyPerfectColor match of Behr 8604 Thunder Grey on plastic parts?

Yes, but plastics vary widely, so testing on the actual part is important. MyPerfectColor spray paint adheres well to most plastics, but smooth or low-energy plastics may need careful cleaning, light scuffing if appropriate, and a primer to improve adhesion.

If the substrate is difficult, use the MyPerfectColor primer for Acrylic Enamel before applying the match of 8604 Thunder Grey. That helps reduce the risk of poor adhesion or early failure on the finished item.

What is the best spray technique for Behr 8604 Thunder Grey to avoid runs or uneven sheen?

Apply several light, even coats instead of one heavy pass. Keep the can moving, overlap passes consistently, and stop before the surface looks wet or flooded.

Heavy coats can cause runs, uneven sheen, or a muddy color build. Follow the dry-time directions for the specific MyPerfectColor product and let each coat set up before adding the next.

What kinds of projects are a good fit for custom spray paint matched to Behr 8604 Thunder Grey?

A match of 8604 Thunder Grey is often useful for trim details, fixtures, railings, vents, pipes, hardware, accessories, frames, baskets, shelving, and other parts that are awkward to brush. It is especially practical when you need a removable item or a small component to coordinate with an existing color reference.

MyPerfectColor can supply the match in spray paint and other formats for projects that need a repeatable color target on metal, plastic, wood, or previously coated parts after proper preparation.

How quickly will I receive my paint matched to Behr 8604 Thunder Grey?

All paint is custom-made to order. While most orders ship within 48 hours, the lead-time for paint made to match Behr 8604 Thunder Grey depends on the type of paint needed. Interior and exterior house paints usually ship within 1 to 3 business days, while custom spray paint typically takes 3-5 business days to ship. The transit time depends on your location and the shipping method you choose. If your need is immediate, select Expedited Production during checkout. Most expedited production orders ship within 24 hours on business days. Please contact MyPerfectColor if you are concerned about a specific deadline. We do our best to make sure you get your paint on time. Learn more about paint lead times at MyPerfectColor.

What are the RGB, HEX and LRV values for Behr 8604 Thunder Grey?

The RGB values for Behr 8604 Thunder Grey are 69, 71, 74 and the HEX code is #45474A. The LRV for Behr 8604 Thunder Grey is 6.31. The LRV stands for Light Reflectance Value and measures the percentage of light that a color reflects. Learn more about Light Reflectance Values and using RGB and Hex codes for paint.

What paint type is used to make spray paint matched to Behr 8604 Thunder Grey? And how many spray cans do I need?

MyPerfectColor uses an acrylic enamel which is a fast-drying durable coating suitable for interior or exterior use. MyPerfectColor custom spray paint matched to Behr 8604 Thunder Grey 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 MyPerfectColor 11oz spray will cover about 20 square feet per coat. Keep in mind that it is difficult to gauge spray paint need as the coverage is highly dependent on how it is applied. Learn more about how spray paint works at MyPerfectColor.

What is the Hue Angle and Chroma for Behr 8604 Thunder Grey?

The Hue Angle for Behr 8604 Thunder Grey is 257.4 and the chroma is 1.83. The Hue Angle represents the position of a color's hue around a color wheel. The Chromacity represents the intensity of a hue. Learn more about browsing colors by hue.

Does Behr paint color Behr 8604 Thunder Grey need primer?

MyPerfectColor doesn't sell Behr paint, but it does match the Behr 8604 Thunder Grey and all the other Behr colors in a wide variety of paint types. The need for primer depends on the specific paint and the substrate being painted. The top quality paints these days tend to be self-priming over most surfaces, while paint at the mid to lower grade quality levels will need a separate primer. Most special situations such as bleeding type woods or difficult to adhere surfaces like plastic will often need a specialty primer. Contact MyPerfectColor support if you have specific questions about the best paint to use for your project and whether you need a primer.

How can MyPerfectColor match the Behr 8604 Thunder Grey?

MyPerfectColor has an original sample of the Behr 8604 Thunder Grey 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.

How do I convert Behr 8604 Thunder Grey to a different color from another paint company?

While we can provide Behr 8604 Thunder Grey in paint, we don't provide any crossover information. We've found that every paint company offers its own unique selection of colors and rarely does a color have an exact equivalent in another brand.

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