Overview
Built for the booth.
Activator for use with High Teck™ 77420 Series 2.1 VOC High Solids DTM Primer/Sealer only.
High Teck™ 77426-4 Activator is a liquid catalyst designed specifically for use with High Teck's 2.1 VOC high solids DTM primer/sealers (77420, 77423, 774234). This activator enables proper crosslinking and curing of the primer system, delivering professional-grade adhesion and durability across multiple substrate types.
The activated primer system provides excellent adhesion to aluminum, e-coat, fiberglass, galvanized metal, OEM finishes, existing primer, SMC, and steel substrates. With a pot life of 2-3 hours at 77°F, technicians have sufficient working time for larger jobs while maintaining consistent application properties. The system becomes sandable in 60-90 minutes, allowing for efficient workflow progression. At 141 g/L VOC content, this activator helps maintain compliance with environmental regulations while delivering reliable performance.
Why Pros Choose High Teck Products HIT
- Excellent corrosion resistance and adhesion
Application Guide
- Ensure substrate is clean and properly prepared. Compatible with aluminum, e-coat, fiberglass, galvanized metal, OEM finishes, existing primer, SMC, and steel surfaces.
- Mix activator with compatible 2.1 VOC High Solids DTM Primer/Sealers (77420, 77423, or 774234) according to primer manufacturer's specified ratio.
- Use mixed material within 2-3 hours pot life at 77°F.
- Apply primer/sealer mixture according to primer manufacturer's specifications.
- Allow 60-90 minutes before sanding to achieve proper sandable time.
Specifications
| Part No. | 77426-4 |
|---|---|
| Product Line | HIT |
| MFR Model | NO-77426-4 |
| Standard/Approvals | California Prop65 Warning: Cancer and Reproductive Harm |
| Manufacturer | High Teck Products |
| UPC | 813834012619 |
| Brand | High Teck™ |
| Maximum Sale Quantity | 6 |
| Maximum Sale Day | 7 |
| Rubberized | No |
| Container Size (qt) | 1 |
| Form | Liquid |
| Mixing Ratio | 4:01 |
- Pot Life
- 2-3 hours at 77°F
- Sandable Time
- 60-90 minutes
- VOC Content
- 141 g/L
- Compatible Substrates
- Aluminum, E-coat, Fiberglass, Galvanized, OEM, Primer, SMC, Steel
- Use With
- 2.1 VOC High Solids DTM Primer/Sealers (77420, 77423, 774234)
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 activator system on?
The activated primer/sealer is compatible with aluminum, e-coat, fiberglass, galvanized metal, OEM finishes, existing primer, SMC (sheet molding compound), and steel substrates.
How long is the pot life after mixing?
Once mixed with the primer/sealer, you have 2-3 hours of working time at 77°F. Higher temperatures will reduce pot life.
When can I sand the activated primer?
The primer becomes sandable in 60-90 minutes after application, depending on temperature and humidity conditions.
What primers does this activator work with?
This activator is specifically formulated for use with High Teck 2.1 VOC High Solids DTM Primer/Sealers part numbers 77420, 77423, and 774234.
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
2-3 hours at 77F
Flash
10-20 minutes
Sandable
60-90 minutes
Topcoat
30 minutes
Topcoat no-sand
24 hours max
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
This listing ships High Teck Products HIT in a 1 (QT) container. Check the autofxmart catalog for other sizes and bulk pricing.
High Teck Products HIT uses a mix ratio of 4:01. Always measure activators and reducers accurately to maintain film properties and pot life — deviating from the ratio can cause adhesion or curing problems.
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 77426-4. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
What Our Customers Say
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5.0 / 5.0
(1 review)
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Greatly ebayer