Overview
Built for the job.
ACID#8 1K Acid Etch Primer Aerosol may be overpainted with most water based or solvent based basecoats or solid colors. Under normal circumstances, ACID#8 can be directly overcoated without sanding. ACID#8 may be overcoated directly with top coat. If the repair requires additional build primer filler should be used…
U-POL ACID#8 UP0837 is a single-component acid etch primer designed to create superior adhesion on bare metal surfaces while providing anti-corrosive protection. This black liquid primer is specifically formulated to prevent steel from rusting and serves as an ideal foundation for subsequent coating systems in collision repair applications.
The primer offers excellent substrate versatility, adhering to aluminum, bare metal, e-coat, galvanized steel, polyester, primer, and steel surfaces. With 48.4 square feet of coverage per 450 mL aerosol can, it applies efficiently in 1-2 coats at the recommended application temperature of 68°F. The product maintains a 2-year shelf life when stored under proper conditions, making it a reliable choice for busy body shops requiring consistent performance and extended storage capability.
Why Pros Choose U-POL UPO
- Etch and prime bare metal in one step
- Flat fan high atomization nozzle offers a large fan pattern and excellent coverage
- Creates an anti-corrosive barrier that prevents steel from rusting
- Can be directly topcoated - no sanding required
Application Guide
- Ensure substrate is clean and properly prepared. Compatible with aluminum, bare metal, e-coat, galvanized steel, polyester, primer, and steel surfaces.
- Apply at recommended temperature of 68°F for optimal performance.
- Shake aerosol can thoroughly before use and apply thin, even coats.
- Apply 1-2 coats as needed to create anti-corrosive barrier on substrate.
- Coverage rate is approximately 48.4 square feet per 450 mL aerosol can.
Compatibility
Compatible substrates: Bare Metal, Steel.
Compatible paint systems: Solvent, 1K, Basecoat.
Specifications
| Part No. | 0837 |
|---|---|
| Product Line | UPO |
| MFR Model | UP0837 |
| Standard/Approvals | GHS02, GHS04, GHS07, GHS08, GHS09 Hazard | California Pro65 Warning: Cancer and Reproductive Harm |
| Manufacturer | U-POL |
| Trade Mark | ACID#8 |
| UPC | 501079610885 |
| Brand | U-POL® |
| Container Size (mL) | 450 |
| Color | Black |
| Coverage (sq-ft) | 48.4 |
- Coverage
- 48.4 sq-ft
- Application Temperature
- 68°F
- Number of Coats
- 1-2
- Compatible Substrates
- Aluminum, bare metal, e-coat, galvanized, polyester, primer, steel
- Shelf Life
- 2 years
- Color
- Black
- Container Size
- 450 mL aerosol can
About U-POL
U-POL delivers pro-grade refinish products including Raptor bed liner, Dolphin glazes, and Power Can aerosols used in shops worldwide.
Frequently Asked Questions
What surfaces can I use this acid etch primer on?
ACID#8 is compatible with aluminum, bare metal, e-coat, galvanized steel, polyester, primer, and steel substrates. It creates an anti-corrosive barrier that prevents steel from rusting.
How many coats should I apply?
Apply 1-2 coats depending on the substrate and coverage requirements. The primer provides up to 48.4 square feet of coverage per 450 mL aerosol can.
What's the recommended application temperature?
Apply at 68°F for optimal performance and adhesion.
How long can I store this product?
The primer has a 2-year shelf life when stored under proper conditions.
Documents & Safety
Why Buy from autofxmart
- Authorized distributor — authentic, factory-fresh stock.
- Fast US shipping — most orders ship within 1 business day.
- 30-day returns — buy with confidence.
- Pro-shop pricing — bulk discounts available on request.
- Expert support — questions? Email us at support@autofxmart.com.
Cure & dry schedule
Timing at 77°F
Between coats
3 - 5 mins
Dust free
10 - 20 min
How to apply
Steps
1Clean and degrease the surface, then scuff as needed.
2Mask off surrounding panels and trim.
3Mix to the product's ratio and strain.
4Apply 2–3 even coats, flashing between each.
5Let cure fully before sanding, buffing, or assembly.
Specifications
Full data
Frequently asked
Good to know
U-POL UPO is compatible with Bare Metal, Steel. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
This listing ships U-POL UPO in a 450 (CN) container. Check the autofxmart catalog for other sizes and bulk pricing.
Most in-stock orders for U-POL UPO ship the same or next business day from our US warehouse. Expedited options are available at checkout. Freight-class items may require an additional 1–2 days for carrier pickup.
Yes. autofxmart is an authorized distributor of U-POL products. Every unit is factory-fresh, sealed, and backed by the manufacturer's standard warranty. If you have a concern, contact support@autofxmart.com and we will make it right.
The MPN for U-POL UPO is 0837. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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