Roberlo  |  SKU: KITUNIX-450HS-satandard7.5L

Roberlo KITUNIX-450HS-Standard7.5L KIT UNIX 450HS Clearcoat 2:1 - 7.5 L Standar C355

$245.00 $287.66
Shipping calculated at checkout.


Description

Roberlo KIT UNIX 450HS Clearcoat 2:1 (7.5L) – C355 Standard Hardener

The Roberlo UNIX 450HS is a high-solids (HS) 2K acrylic clearcoat designed for professional automotive refinishing. It delivers a high-resistance finish (scratch-resistant) and helps reduce handling times on both partial and complete repairs. If additional yield is needed, it can be reduced up to 5% with the recommended thinner.

Key Benefits for Body Shop Refinishing

  • 2K HS clearcoat engineered for professional collision repair and refinishing.
  • High scratch resistance and high hardness for demanding finishes.
  • Fast workflow: designed to reduce handling time in partial & full repairs.
  • Optional reduction up to 5% (when more yield is needed).
  • 2:1 mixing ratio with C355 Standard Hardener (kit version).

Technical Specs (Quick Table)

Product Type Acrylic 2K clearcoat (HS)
Color Colorless
Kit Size 7.5L (Kit) – C355 Standard
Mixing Ratio 100:50:0–5 (by volume) = 2:1 + optional 0–5% thinner
Specific Weight 8.2 lb/gal @ 68ºF
Viscosity (CF/4) 18 sec @ 68ºF
Dry Film Thickness 2–2.4 mils (2 coats)
Coverage (Yield) 370–410 ft²/gal
Solids Content 49% (product) / 48% (application 100:50) / 46% (application 100:50:5)
VOC 4.1 lb/gal (product) / 4.2 lb/gal (application 100:50) / 4.3 lb/gal (application 100:50:5)

Mixing & Spray Application (Body Shop Setup)

Apply UNIX 450HS on the basecoat only after the basecoat manufacturer’s recommended flash-off time.

Parameter Recommended Setting (C355 @ 68ºF)
Pot Life 4 hours
Spray Tip / Nozzle 1.3 – 1.5 mm
Air Pressure 60 psi
Spray Distance 6 – 8 inches
Coats 2 coats
Flash Between Coats 3 – 5 minutes

Recommended Hardener & Thinner Selection (By Temperature)

Ambient Temp Hardener Optional Thinner
< 65ºF C356 S322
65ºF – 77ºF C355–C356 (primary) / C354–C355 (alt.) S322–S324
> 77ºF C355 (primary) / C354 (alt.) S324

Drying Notes (Professional Workflow)

  • Flash off (C355 @ 68ºF): 14 minutes.
  • Bake (C355 @ 122ºF): 30 minutes.
  • Humidity tip: humidity affects clearcoat components—keep application equipment absolutely dry.
  • When RH > 70% and/or temp < 50ºF: drying at 140ºF is recommended.

Storage, Shelf Life & Safety

  • Storage: keep in a ventilated place away from direct sunlight; store between 40ºF and 90ºF.
  • Shelf life: 1 year in unopened original packaging.
  • Safety: for professional use only—follow the label and consult the Safety Data Sheet (SDS) before use.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.