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How to Spray Granite On Countertop | Discover How To Use Stone Granite Countertop Spray - Stone Coat Countertops

Sep 23rd 2021

How to Spray Granite on Countertop With Granite Spray Paint

Do you like solid surface countertops, better known as Corian countertops? In this video, we're going to show you how to save 10 times your money. The solid surface usually sells for about 50 to 55 dollars a square foot. You can do it for five bucks a square foot and it'll be more durable and will last longer. Stay tuned for this do-it-yourself-friendly video.

The steps are simple. In this case, we're going over MDF, which is a medium-density fiberboard. You can go over your existing countertops, and you can even go over plywood.

Step 1:

First, we're going over MDF, we're going to router those edges to a one-quarter inch round over, so the epoxy will flow nice and smooth. We're gonna do two coats of our epoxy undercoat in white because that's the recipe we're doing today. We'll let that dry and then we'll be ready for the next step.

2 Coats of Epoxy Undercoat White

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Step 2:

Have you seen our speckled spray? That speckled spray is the secret sauce

to making everything look like solid surface Corian countertops you can get them right at We're going to spray that right now!

We have five different colors of our stone spray. I tend to like this black and white speckled, almost like a salt and pepper granite look. Then maybe I'll add a little bit of this gray one. So, I'm going to choose these two, let me know what you would have chosen. Would you have chosen the black and the gray or would you have chosen something different? 

Stone Granite Countertop Spray on Sink

Pro Tip:

You always want to start on your edges. Shake your cans vigorously, warm them up, test the spray maybe on a piece of cardboard or plastic. Get the flow going just how you want it, so you know exactly what you're going to do when you hit that edge. Then, cover the field or the major portions of your countertop or your project.

You can do all kinds of different projects using these same methods. You can see that I'm just pumping that spray tip and I'm not holding it down. I'm just kind of using it like a hopper. If you’ve ever done drywall texture where you have a hopper, what I'm doing here is very similar.

Step 3

You've seen that I've done the perimeter now, I'm doing the field. I'm doing the inside of this space. I'm doing this, so if I did the inside and then I went to the edges, inevitably I’d have an uneven stripe around that perimeter.

Go high above the surface and straight down, so that you’re not shooting it at an angle. Therefore, you won't get little tadpoles or stripes going the way that the spray is going.

Step 3-How to Spray Granite on Countertop

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Step 4:

Time for the gray. This is actually called Greystone. It’s giving it a few white specks and stuff like that. It's got a lot of variation in it and it looks great on the edges too.

If you’re going over an existing cove, like a vanity, you want to make sure the backsplash matches your laminate perfectly. Your cultured marble, your sinks, you know spray this, and then just do clear epoxy it would look perfect.

Pro Tip:

This stuff takes a little bit to dry so be patient. Test how it dries on your sample before you touch the finished piece and let it dry. Let it set up, maybe wait one day and come back. We'll sand it and do our first clear coat. We'll do two clear coats to create some high build.

Step 5:

So, it's the next day and our speckle spray is all dry. I’m going to sand it with 220 grit on

a foam backer and I'm going to get this nice and smooth to the touch. Keep in mind that stone spray dries a little bit rough. You can feel that texture so just take your sander and smooth it out.

Sanding Down Granite Spray Paint

Step 6:

I’m going to do a clear stone coat countertop epoxy. I'm gonna do two coats at

three ounces per square foot. That's going to do one coat that covers that texture and a second coat for added depth and durability. This also gives my edges some build-up so I don't feel any roughness on those edges.

Step 7:

I'm going to do this by first mixing the epoxy at a one-to-one ratio, then I'm going to trowel it out with our 1/8 by 1/8 square notch trowel. After that, I'll chop the surface and then I'll torch it to remove any bubbles. Repeat that same system on the next day to get that clear coat. If you're going in place over existing countertops, follow those same steps. If you haven't seen our video on how to prep like a pro, go check it out.

Now you know it's amazing this looks without any stone coat actually on the surface,but wait until I pour it. It really gives it that stone-like appearance. It mimics solid surface, it mimics Corian, let me know what you think of this process. 

Chopping the Granite Spray Paint 1

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Step 8:

Pull any loose bristles out of that brush before you chop it out and prime that brush. Just get it wet so that you don't start pulling up the epoxy where you start chopping.

Pro Tip:

When you chop the surface, do it in a random fashion. You don't want to do rows, just do it randomly. Be sure to chop the entire surface because this also helps mix the material and it removes any trowel lines that may have been caused by troweling out the stone coat epoxy.

Chopping the Granite Spray Paint

Step 9:

Now that I have a saturated brush, I'm going to go ahead and brush out these edges with long horizontal strokes. I've also pushed any material over those edges by chopping all the way to the edge. That's why you want to finish by spreading those drips out long horizontal strokes across those edges, so you get an even finish.

Step 10:

To torch out any of the bubbles on the surface, I'm just using a propane torch. You can

use a heat gun or even a hairdryer, but I like the propane torch because it's fast and effective. Now we're going to let this dry. It's a little bit bumpy and I have tiny little high points from that texture spray, and that's okay. My coat tomorrow will completely layout like glass.

Torching the Epoxy Clear Coat

Step 11:

Okay, it's been a couple of days and this is ready for a second clear coat. However, while it was curing there was a lot of stuff that was accidentally set on this. There's random runoff epoxy from other projects coming off the tools, I see a little wood chip here,

a couple of random smudges, but that's completely fine. We're going to sand this down with 220 grit sandpaper and then you're going to tag along with me for the final coat.

Step 12:

I'm going to use some acetone to help me clean up this dust. Sanding is done, so it’s time for the next step. As mike has already explained, mix pour trowel chop torch and your piece will be done.

How to Spray Granite on Countertop

It's as easy as that, just mix, pour, trowel, chop, torch, and you're done. This is going to set up overnight. If you haven't already, subscribe to our channel because we bring you the best DIY tutorials on how to epoxy on YouTube, so check us out. We have hundreds and hundreds of videos that teach you, the DIY'er, how to become an epoxy pro.