Overview
Built for the job.
NR/SC DARK GRAY HIGH BUILD EPOXY PRIME
NR/SC Dark Gray High Build Epoxy Primer is a professional-grade coating designed for automotive collision repair applications requiring excellent build and substrate adhesion. This two-component epoxy primer provides superior corrosion protection and creates an ideal foundation for subsequent topcoat systems on aluminum, steel, and existing primer surfaces.
The primer features a convenient 1:1 mix ratio with 7603 activator and offers an extended 8-hour pot life for efficient workflow management. Flash time is 15 minutes under ambient conditions or 30 minutes when force-dried at 140°F, enabling quick turnaround times. With a VOC content of 458.69 g/L, this primer meets regulatory requirements while delivering reliable performance across multiple substrate types.
Proper ventilation and personal protective equipment are essential when applying this product. The high-build formulation provides excellent coverage and fill properties, making it ideal for smoothing minor surface imperfections while ensuring optimal adhesion for subsequent coating layers.
Why Pros Choose High Teck Products HIT
- NR/SC DARK GRAY HIGH BUILD EPOXY PRIME
Application Guide
- Prepare aluminum, steel, or primed substrates according to standard surface preparation procedures
- Mix 1 part 7600 series with 1 part 7603 catalyst. Mixed material has 8 hour pot life at room temperature
- Apply epoxy primer in thin, even coats to prepared substrate
- Allow 15 minutes flash time between coats at room temperature
- For accelerated cure, flash for 30 minutes at 140°F
- Sand and apply topcoat system once primer has fully cured
Compatibility
Compatible paint systems: Epoxy.
Specifications
| Part No. | 7600-1 |
|---|---|
| Product Line | HIT |
| Manufacturer | High Teck Products |
| UPC | 813834016921 |
| Rubberized | No |
- Mix Ratio
- 1:1 (7600 series with 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 epoxy primer on?
This high build epoxy primer is compatible with aluminum, existing primer, and steel substrates.
What's the mix ratio for this primer?
Mix 1 part 7600 series primer with 1 part 7603 hardener for proper catalyzation.
How long is the flash time before I can apply topcoat?
Allow 15 minutes flash time at room temperature, or 30 minutes at 140°F for accelerated flash.
What's the pot life after mixing?
Once catalyzed, you have 8 hours of working time before the mixed material becomes unusable.
What's the VOC content of this primer?
The VOC content is 458.69 g/l (3.83 lb/gal), which you'll need to factor into your shop's emission compliance calculations.
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
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 7600-1. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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