2K
HardenerZN-420
2K Acrylic Hardener
General-purpose hardener for standard 2K acrylic paint and clear coat systems; delivers balanced drying and high chemical resistance with ZN-310.
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Clear Coat · ZN-310
2K Acrylic Clear Coat
Standard 2K acrylic clear coat (2 : 1) for automotive repair and industrial surfaces; dries fast and offers strong UV protection and high chemical resistance.
- 2K · Two-component
- Steel panel
- Galvanised steel
- Aluminium
- Plastic
Packaging
1 L · 5 L
Overview
What is 2K Acrylic Clear Coat?
ZN-310 2K Acrylic Clear Coat is a standard two-component acrylic polyurethane clear coat developed for automotive refinishing and industrial metal surfaces. It forms a transparent, durable protective layer over the basecoat, giving the colour depth and protecting the surface against the wear and tear of everyday use. With its straightforward 2 : 1 mixing ratio and predictable application behaviour, it is a reliable choice for both day-to-day repair work and industrial painting.
Its formula offers strong UV protection, delaying sun-induced dulling and colour fading of the underlying basecoat and helping to preserve the gloss for longer. The cured film is highly resistant to fuel splashes, road grime, bird droppings and washing chemicals. Fast dust-free drying shortens waiting time in the booth; after 30 min of drying at 60 °C object temperature, the part is ready for assembly once it has cooled and, if necessary, for light polishing.
ZN-310 is mixed 2 : 1 by volume with ZN-420 2K Acrylic Hardener and brought to application viscosity with 5–10% ZN-510 Acrylic Thinner. In a typical repair system, it is applied as the topcoat over a surface prepared with ZN-210 4+1 Acrylic Primer Filler and then coated with basecoat. It is recommended to degrease the surface with ZN-530 Surface Cleaning Thinner at the start of the system and, on spot repairs, to melt in the blend edge with ZN-520 Blending (Fade-out) Thinner.
Key features
- Long-lasting gloss and strong UV protection
- Fast dust-free drying for short booth times
- High resistance to fuel, dirt and washing chemicals
- Easy 2 : 1 mixing ratio and predictable application
- Versatile use on automotive and industrial surfaces
Technical specifications
Technical data
Values are typical at 20 °C and 65% relative humidity. Please review the product's current Technical Data Sheet (TDS) before application.
| Product type | 2K acrylic polyurethane (isocyanate-cured) |
|---|---|
| Mixing ratio (by volume) | 2 : 1 (clear coat : hardener) |
| Hardener | ZN-420 2K Acrylic Hardener |
| Thinning | 5–10% ZN-510 Acrylic Thinner |
| Pot life (20 °C) | Approx. 2 h |
| Application viscosity (DIN 4, 20 °C) | 16–18 s |
| Spray gun nozzle size / pressure | HVLP 1.3–1.4 mm / 2.0 bar (at gun inlet) |
| Number of coats / dry film thickness | 2 coats, 5–10 min flash-off / 50–60 µm in total |
| Drying (20 °C / 60 °C) | Ready for assembly: 16 h / 30 min (object temperature); dust-free after 20–25 min |
| Gloss (60°) | > 90 GU |
Pack sizes
- 1 L
- 5 L
Technical documents
Our technical team will send the Technical Data Sheet (TDS) and Safety Data Sheet (SDS) you request by email.
Drying times vary with temperature, humidity, film thickness and air circulation. Consult our technical team about special conditions.
Application
Step-by-step application
The recommended application sequence for a professional result.
- 01
Surface preparation
Wait for the basecoat to complete the flash-off specified in its technical data (until it turns matt) and wipe the surface lightly with a tack cloth. If the clear coat is to be applied directly over existing paintwork, scuff the surface with P800–P1000 and clean it with ZN-530 Surface Cleaning Thinner.
- 02
Mixing
In a graduated mixing cup, combine 2 parts by volume of ZN-310 with 1 part of ZN-420 hardener, then add 5–10% ZN-510 Acrylic Thinner. Stir until the mixture is uniform and fill the gun through a paint strainer.
- 03
Application
Using an HVLP gun fitted with a 1.3–1.4 mm nozzle at approximately 2.0 bar inlet pressure, apply a medium closed coat followed by a full wet coat. Between coats, wait 5–10 min until the first coat has tacked up slightly; aim for a total dry film thickness of 50–60 µm.
- 04
Drying
Allow a 5–10 min flash-off before baking. Dry the part for 30 min at 60 °C object temperature or leave it for 16 h at 20 °C; low temperatures and high humidity extend the drying time.
- 05
Polishing and equipment cleaning
Once the part has cooled completely, remove minor defects such as dust nibs by fine sanding and polishing. Clean the spray gun and equipment with ZN-510 Acrylic Thinner immediately after use.
Storage and safety
- Store in the original, tightly closed container at 5–25 °C in a cool, dry, well-ventilated place; protect from direct sunlight.
- Flammable liquid: keep away from heat, sparks and open flames; ventilate the mixing and application area well.
- Use the product within its pot life once mixed with hardener; do not store the mixture in a closed container or pour it back into the original container.
- The mixture contains isocyanates: wear suitable respiratory protection, gloves and eye protection when spraying. Refer to the product's Safety Data Sheet (SDS) for detailed information.
System compatibility
Products used together
Zenova products tested in the same system as this product, which give the best results together with it.
1KThinnerZN-510Acrylic Thinner
Balanced-evaporation thinner that brings 2K acrylic paints, clear coats and primers to ideal spray viscosity; reduces orange peel and ensures even flow.
View product- 1KThinnerZN-520
Blending (Fade-out) Thinner
Blending thinner that makes the transition between new clear coat and existing paintwork invisible in spot repairs; melts in overspray edges and eases polishing.
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2KPrimerZN-2104+1 Acrylic Primer Filler
High-build 2K acrylic primer filler: covers filled areas, does not sag, sands easily and creates a smooth, isolating base for the topcoat.
View product
Application systems that include this product
Frequently asked
Questions about 2K Acrylic Clear Coat
Knowledge Centre
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Painting in cold, humid weather: understand dew point and 2K curing, heat the booth and choose the right thinner and hardener to prevent drying problems.
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