H735 FAST HARDENER FOR 2K ULTRA-HIGH SOLID CLEAR COATS
FAST-DRYING ISOCYANATE HARDENER – SPEED AND EFFICIENCY FOR SMALL REPAIRS
HB BODY H735 HARDENER ULTRA HS FAST is a quick-reacting isocyanate hardener designed for use with HB BODY 2K Ultra High Solids clearcoats in cooler climates or rapid spot repairs. With its short pot life and accelerated drying, it allows fast handling and early polishing without compromising gloss or durability—perfect for high-efficiency workflows.
KEY FEATURES:
✅ Fast Drying Time – Ideal for cooler climates or quick repair cycles.
✅ Precision for Spot Repairs – Reduced waiting time, faster throughput.
✅ High Gloss Finish – Achieve professional clarity in a flash.
✅ Durable Protection – Adds resistance to chemicals and wear.
✅ Cool-Weather Compatible – Designed for 15–20°C environments.
✅ Tailored for HB BODY UHS Clears – Perfect match for C894 CLEAR ULTRA HS.
APPLICATION DETAILS:
- Mix Ratio – 2 parts clearcoat to 1 part H735 HARDENER ULTRA HS FAST No Thinner Needed.
- Pot Life – 60–90 minutes at 23°C (with C894 CLEAR ULTRA HS).
- Spray Viscosity – 18–20 s (DIN 4 / 20°C) with C894.
- Compatible Spray Gun Setup – 1.2–1.3 mm nozzle | 1.7–2.2 bar (25–32 psi).
- Drying Times (with C894) –
- Air Dry: 14–18 h @ 23°C
- Force Dry: 20–30 min @ 60°C
- IR: Half power 5 min + Full power 10–14 min
- Polishing can begin approximately 45–60 minutes after force drying & cooling.
IDEAL CONDITIONS FOR USE:
- Spot Repairs
- 15–20°C: Use H735 FAST
- 20–30°C: Use H734 NORMAL
- Full Resprays
- <25°C: Use H734 NORMAL
- 25–35°C: Use H733 SLOW
- Humidity – 40–80% recommended
PERFORMANCE SPECS:
- VOC Compliant – 420 g/L (EU 2004/42/IIB(d)) when used in compliant systems
- Shelf Life – 24 months (unopened, 5–25°C storage)
- Pack Sizes – 2.5L standard can
- Compatibility – Works with all HB BODY UHS clearcoats and solvent/waterborne basecoats.
PROFESSIONAL QUALITY YOU CAN TRUST:
- When speed matters most, H735 delivers. Trusted by collision centers and body shops for its fast turnaround and flawless finish, it’s your key to rapid, high-quality results—without compromise.
COUNT ON H735 FOR SPEED, SHINE, AND SMOOTH RESULTS—BECAUSE TIME IS PAINTWORK’S GREATEST ASSET.