Overview
Built for the job.
High Teck 7500 Series Epoxy Primers are high build Epoxy Primers with multiple VOC capabilities, depending on the catalyst and reducer used. Formulated for excellent adhesion and corrosion resistance when used on various types of substrates including prop
High Teck 7503-1 Catalyst is a specialized hardener designed for use with epoxy primer systems in professional collision repair applications. This catalyst creates a durable foundation layer that bonds effectively to multiple substrate types including steel, aluminum, and existing primer surfaces.
The catalyst utilizes a convenient 1:1 mix ratio with epoxy base, simplifying mixing procedures and reducing waste. At 140°F, the catalyzed primer achieves dry time in 30 minutes, enabling efficient workflow in heated spray booth environments. The zero VOC formulation supports compliance with environmental regulations while maintaining professional performance standards.
Proper spray booth ventilation and standard PPE including respiratory protection should be used during application. This catalyst is engineered for use in controlled shop environments where consistent temperature and airflow can be maintained throughout the curing process.
Why Pros Choose High Teck Products HIT
- High build epoxy primer surface
- Multiple VOC capabilities, depending on the catalyst and reducer used.
- Excellent adhesion and corrosion resistance
- Used on various types of substrates including properly prepared steel and aluminum.
- Available in Dark Gray, Black & White
- Mix ratio 1:1
Application Guide
- Ensure substrate (aluminum, steel, or existing primer) is properly cleaned and prepared for coating.
- Mix one (1) part epoxy primer base with one (1) part High Teck 7503-1 Catalyst using proper mixing ratio.
- Apply mixed epoxy primer to prepared substrate using appropriate spray equipment.
- Allow 30 minutes dry time at 140°F before proceeding with subsequent coats or topcoats.
Compatibility
Compatible substrates: Steel, Aluminum, Epoxy Primer.
Compatible paint systems: Epoxy.
Specifications
| Part No. | 7503-1 |
|---|---|
| Product Line | HIT |
| Manufacturer | High Teck Products |
| UPC | 813834015191 |
| Rubberized | No |
- Mix Ratio
- 1:1 (epoxy base to catalyst)
- Dry Time
- 30 minutes at 140°F
- VOC Content
- Zero VOC
- 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 catalyst system on?
This catalyst is designed for use with epoxy primer on aluminum, existing primer, and steel substrates.
What's the correct mix ratio for this catalyst?
Mix one part epoxy base to one part catalyst for proper curing and performance.
How long does it take to dry?
The catalyzed epoxy primer dries in 30 minutes when baked at 140°F.
What are the VOC emissions from this catalyst?
This catalyst produces zero VOC emissions, making it compliant with low-emission requirements.
Documents & Safety
- Safety Data Sheet (SDS)
- Technical Data Sheet (TDS)
- sds-7503-7503-catalyst-for-epoxy-primer-usa.pdf
- hit_7500_series_tds_060623.PDF
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
Topcoat
60 minutes
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 Steel, Aluminum, 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 7503-1. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
What Our Customers Say
Thanks! Your review was submitted and will appear after moderation.
No reviews yet — be the first to review this product.