

🚗 Elevate your ride’s canvas with the primer pros swear by!
Custom Shop 1K High Build Primer Spray Paint is a professional-grade, 12 oz grey aerosol primer designed for automotive restoration. It bonds strongly to steel, aluminum, fiberglass, and plastics, offering 144 sq ft coverage with a high build, sandable formula that fills minor surface imperfections. Featuring a flat fan nozzle for easy, direct-to-metal application without prep, this versatile primer creates a smooth, durable foundation compatible with most automotive topcoats.














| ASIN | B07M9Z8D6V |
| Age Range Description | Adult |
| Best Sellers Rank | #146,724 in Automotive ( See Top 100 in Automotive ) #79 in Automotive Primers |
| Brand Name | Custom Shop |
| Color | Gray |
| Color Code | #808080 |
| Container Type | Can |
| Coverage | 144 square feet |
| Customer Reviews | 4.5 4.5 out of 5 stars (429) |
| Finish Type | Semi-Gloss |
| Included Components | painting |
| Indoor Outdoor Usage | Outdoor |
| Is Waterproof | False |
| Item Form | Aerosol |
| Item Volume | 12 Fluid Ounces |
| Item Weight | 0.01 Ounces |
| Manufacturer | Custom Shop |
| Model Number | SP-448 |
| Paint Type | Acrylic |
| Part Number | SP-448 |
| Size | 1 Pound (Pack of 1) |
| Special Features | Easy Sanding |
| Specific Uses For Product | Interior/Exterior |
| Surface Recommendation | Metal |
| UPC | 848849000368 |
| Unit Count | 16 Ounce |
| Water Resistance Level | Not Water Resistant |
E**R
Good primer
Good primer for plastic Great coverage
T**S
Used on my paramotor propeller!
This stuff was awesome. Check my youtube channel under rule1dontgosplat. I painted my dull black prop with candy blue and it looks amazing. Paint cans did not clog, spray went on smooth and easy. Would recommend for anyone trying to jazz up boring parts.
O**Y
100% recommend
100% would recommend , this product. Easy to spray and sand. Nozzle is good quality with even fan. Not a super high build primer but good for covering light scratching, I ended up buying two bottles , may end up buying much more. Will work on plastics just make sure you apply adhesion promoter first. Says it’s flexible that still remains to be tested. But all in all great product. Will be doing a review on this product on YouTube. YouTube channel: just a mechanic
S**W
Better than average
The product is good buy the aerosol seems to react to some other paint with a bit of an orange peal look. It can be sanded a but it was a bit of a surprise.
J**M
Perfect for Auto Painting
Good stuff. The high build feature allowed me to fine-sand out minor imperfections before applying base coat.
L**I
you get what you pay for
direct to raw metal. sands great
M**L
Excellent
For a spray bomb primer.. this works very very well.. It has good weight using it on a restoration only downside I wish they made this in black..
J**O
Great primer for propmaking
I work on props as a hobby and I decided to try this out along with other primers for comparison. I gotta say, that I really like this ones. It really leaves a good surface ready to paint. It sprays really consistently and the amount of paint you get due to the can size is awesome. I will definitely purchase this again once it runs out.
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