1st KLASS Acrylic Clearcoat HS 2:1 System (1L)

Name: 1st KLASS Acrylic Clearcoat HS 2:1 System (1L)
Brand: 1st KLASS
SKU: KS-L1
Price: 22.78 EUR
Availability: InStock

In stock

22.78 €

Unit price: 22.78 €/liter

Expected Delivery Time:

2 - 5 business days

Hardener

Points earned after purchase: 0.23 €

The 1st KLASS Acrylic Clearcoat HS 2:1 System is a high-quality, high-solids automotive clearcoat designed for rapid body repairs and full-panel refinishing.
It offers excellent gloss, short drying times, and outstanding surface appearance.
The system includes three hardener options (Normal, Fast, Slow) and two types of thinners (Standard and Express), allowing optimal performance on both large surfaces and small panels.

What is it for?

Recoating automotive base coats
Fast repair jobs and express spot repairs
High-gloss finishing on full panels
Durable topcoat for exterior automotive surfaces
Refinishing existing OEM coatings

Details

The 1st KLASS Acrylic Clearcoat HS 2:1 is a professional two-component acrylic system formulated for high-quality refinishing work.
Its high-solids composition ensures exceptional durability, UV resistance, and a deep high-gloss finish.
The product provides excellent flow, smooth leveling, and an outstanding final appearance immediately after application.

Three hardeners (Normal, Fast, Slow) offer complete flexibility depending on temperature, panel size, and working speed.
Standard Thinner and Express Thinner allow optimal viscosity adjustments for both full-size refinishing and quick repair applications.

This clearcoat is compliant with European VOC standards and ensures premium performance in professional body shops.

TECHNICAL DATA

Color & Gloss

Color: Transparent
Gloss level: High gloss

VOC

VOC of mixture: 540 g/l
EU limit (category B/5): 840 g/l

Suitable Substrates

Base coats
Existing coatings (sanded and cleaned)

Surface Preparation

Clean with silicon remover
Sanding recommendations:
- Wet sanding: P600–P800
- Machine sanding: P360–P400

STANDARD vs EXPRESS SYSTEM – COMPARISON TABLE

Parameter	Standard System	Express System
Mixing ratio	2 parts clearcoat + 1 part hardener + max 10% thinner	2 parts clearcoat + 1 part hardener + max 10% express thinner
Viscosity at 20°C	15–16 s (with 10% thinner)	15–16 s (with 10% express thinner)
Pot life	approx. 7 h (20°C)	approx. 45 min (20°C)
Nozzle size	1.3–1.4 mm	same
Application pressure	as per spray gun manufacturer	same
Number of layers	1.5–2 layers	1.5–2 layers
Dry film thickness	approx. 60 µm	approx. 60 µm
Flash-off between coats	5–7 min	5–7 min
Flash-off before baking	5–10 min	5–10 min
Drying at 20°C – dust free	10–12 min	8–10 min
Drying at 20°C – tack free	6–8 h	2 h
Drying at 60°C	25 min	10 min
Usage	full panels, large surfaces	quick spot repairs, small areas

Coverage

1 liter mixture covers 7.5–8.0 m² at 60 μm DFT

Polishing & Defect Removal

Usually unnecessary due to excellent surface appearance
If required:
- Remove dust nibs with 1500–2000 grit + water
- Polish with abrasive compound
Best polishing window: 6–24 hours after cooling