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Details

HS 4:1 Acrylic Filler + Hardener 1L – 1st KLASS

For professional use only.

HS 2K System 4:1 Mixing Ratio Excellent Filling Easy Sanding

Product Description

High-quality HS acrylic filler for professional automotive refinishing. Provides excellent filling properties, smooth sanding performance and strong vertical stability. Suitable for full panel priming and spot repairs without visible edge marks. Available colors: Grey, Black, White.

Mixing Ratio

Component	Ratio
Filler	4 parts
Hardener	1 part
Acrylic Thinner	10–20%

Technical Data

Pot Life (20°C)	1.5–2 hours
Viscosity DIN 4mm	18–30 s
Nozzle Size	1.6–1.8 mm
Number of Coats	2–3
Dry Film Thickness	50–300 µm
Drying at 20°C	3 hours
Drying at 60°C	20–30 minutes

VOC

VOC max. 500 g/l. Complies with EU Directive 2004/42/EC (Category B/3 – max. 540 g/l).

Data

Brand:

1st KLASS

Usage:

Primer

Color:

Grey

Other Properties:

Quick filler

Size:

1 L

Properties:

2K

Shipping cost:

1700

Weight:

1.2 kg/pcs

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Frequently Asked Questions (FAQ)

Frequently Asked Questions

Is this product for professional use only?

Yes. This product is intended for professional automotive refinishing applications only.

What is the correct mixing ratio?

4 parts filler + 1 part hardener + 10–20% acrylic thinner. Mix thoroughly before application.

What is the pot life?

Approximately 1.5–2 hours at 20°C. Lower temperatures may extend this time.

When can it be sanded?

After approx. 3 hours at 20°C or 20–30 minutes at 60°C.

Which sanding grit is recommended?

For 1 coat: P400 dry or P600 wet. For 2 coats: P500–600 dry or P800–1000 wet.

What is the recommended film thickness?

Recommended dry film thickness is 50–300 µm.

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