Overview
Built for the job.
NR/SC BLACK HIGH BUILD EPOXY PRIMER
The NR/SC Black High Build Epoxy Primer is a two-component coating designed for professional auto body applications requiring superior build and corrosion protection. This epoxy primer delivers exceptional adhesion across multiple substrates including aluminum, steel, and existing primer surfaces, making it ideal for collision repair and restoration work where substrate compatibility is critical.
Mixed at a convenient 1:1 ratio with activator 7603, this primer offers an extended 8-hour pot life for large jobs while maintaining a practical 15-minute flash time between coats. The high-build formulation provides excellent coverage and filling properties, reducing the need for multiple applications. Flash time accelerates to 30 minutes at 140°F for shops using heated spray booths.
With a VOC content of 458.69 g/l, proper ventilation and respiratory protection are required during application. The primer's versatility across aluminum, steel, and primer substrates makes it an efficient choice for mixed-substrate repairs and full vehicle refinishing projects.
Why Pros Choose High Teck Products HIT
- NR/SC BLACK HIGH BUILD EPOXY PRIMER
Application Guide
- Ensure substrate (aluminum, primer, or steel) is clean and properly prepared for primer application.
- Mix 1 part 7600 series with 1 part 7603 catalyst. Mixed product has 8-hour pot life at room temperature.
- Apply primer in thin, even coats to achieve desired build thickness.
- Allow 15 minutes flash time between coats at room temperature.
- For accelerated cure, flash for 30 minutes at 140°F.
Compatibility
Compatible substrates: Epoxy Primer.
Compatible paint systems: Epoxy.
Specifications
| Part No. | 7601-4 |
|---|---|
| Product Line | HIT |
| Manufacturer | High Teck Products |
| UPC | 813834016952 |
| Rubberized | No |
- Mix Ratio
- 1:1 (1 part 7600 series with 1 part 7603)
- Flash Time
- 15 minutes / 30 minutes at 140°F
- Pot Life
- 8 hours
- VOC Content
- 458.69 g/L (3.83 lb/gal)
- Compatible Substrates
- Aluminum, primer, steel
About High Teck Products
High Teck Products is a trusted manufacturer of professional auto body and refinish products used by collision repair shops and restoration specialists across North America.
Frequently Asked Questions
What surfaces can I use this primer on?
This high build epoxy primer is compatible with aluminum, steel, and existing primer substrates.
What's the mix ratio for this primer?
Mix 1 part 7600 series primer with 1 part 7603 activator for proper application.
How long is the pot life after mixing?
Once mixed, you have 8 hours of working time before the material becomes unusable.
What are the flash times for this primer?
Allow 15 minutes flash time at room temperature, or 30 minutes at 140°F for accelerated drying.
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
Pot Life
8 hours
Flash
30 minutes
To topcoat
60 minutes
To sand
Overnight
Flash before force-dry
15 minutes
Force-dry
30 minutes at 140° F
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
High Teck Products HIT is compatible with Epoxy Primer. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
Most in-stock orders for High Teck Products HIT 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 High Teck 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 High Teck Products HIT is 7601-4. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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