













🖤 Elevate your DIY epoxy game with a primer that means business!
Stone Coat Countertops Epoxy Undercoat is a high-bond, black epoxy primer designed to seal and prepare porous surfaces like MDF and plywood for epoxy resin applications. With a fast 4-hour dry time and coverage of up to 40 square feet per quart, it ensures a dense, glossy foundation that enhances durability and finish quality. Non-toxic and safe for indoor and outdoor use, this undercoat is optimized for Stone Coat epoxy kits, making it an essential base layer for professional-grade DIY countertop and furniture projects.





| Brand | Stone Coat Countertops |
| Color | Black |
| Finish Type | Gloss |
| Size | 32 Fl Oz (Pack of 1) |
| Item Volume | 32 Fluid Ounces |
| Special Feature | Non Toxic |
| Unit Count | 32 Fluid Ounces |
| Paint Type | epoxy-based |
| Specific Uses For Product | Interior/Exterior |
| Surface Recommendation | Stone |
| Indoor/Outdoor Usage | Indoor |
| Item Form | Liquid |
| Included Components | Applicator |
| Is Waterproof | [Unknown] |
| Model Name | Epoxy Gloss Undercoat |
| Package Information | Can |
| Color Code | ['#FFFFFF', '#000000']" or "['White' : '#FFFFFF', 'Black' : '#000000'] |
| Full Cure Time | 4 Hours |
| Coverage | 40 |
| Water Resistance Level | Not Water Resistant |
| Manufacturer | Stone Coat Countertops |
| Dry Time In Hours | 4 |
| Item Weight | 2.61 pounds |
| Package Dimensions | 5 x 4.45 x 4.45 inches |
| Finish | Gloss |
| Item Package Quantity | 1 |
| Special Features | Non Toxic |
| Batteries Included? | No |
| Batteries Required? | No |
R**N
Great product
I purchased this for use on a home project and the ease of use paid for itself. The functionality was what I was hoping for. I will be using this seller in the future.
L**Z
Excellent finish and protection
The epoxy topcoat paint works very well. It seals and protects the surface, leaving a uniform and long-lasting shine.
W**N
Must have!
Great product and suprisingly easy to apply. The paint is thick and covered the surface very well.
A**L
Effective epoxy undercoat
Although you can add dyes / pigment to your epoxy, there is always a chance that underlying blemishes will show through. The advantage of this preparation is that it very effectively prevents 'bleed through' of such marks. This was my primary reason for buying the product and it works really well. Adhesion of the epoxy is excellent and creates a good transition between the epoxy and whatever underlying material you are coating. That said, if you have a uniform color, unblemished surface, this may be overkill. Personally though it gives peace of mind on expensive installations.
K**A
Does work
Nice product applied on countertop hided almost 85% with 2 coat after sanding. 1 start less for not hiding 15%.
J**I
Good Product
Worked well as an undercoat for the epoxy
A**R
Worked Perfectly
I got this product after watching a Stone Coat Countertops video on applying epoxy over an existing countertop. I first applied XIM bonding primer onto a bare new MDF countertop surface. Then I applied the subject product to produce a black base surface. Then I applied Rustoleum stone spray to give it a speckled look, and finished up with two coats of clear countertop epoxy and two coats of polyurethane to prevent yellowing. The combination worked well, with no peeling of any layer. I recommend it.
B**Y
Excellent quality! Saved my countertop project!
Great quality paint! Bought a different brand countertop paint and epoxy kit, but it was very bad quality and didn’t cover the square footage it said it would. Bought this product to fix the mistake of the other, and it was a 180 degree difference. So thankful!
Trustpilot
1 month ago
3 weeks ago