2K
HardenerZN-430
2K MS Hardener
2K hardener optimised for ZN-320 MS clear coat; offers ideal flow, optimum drying speed and commercial performance that keeps pace with the workshop.
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Clear Coat · ZN-320
2K Acrylic MS Clear Coat
Medium-solids (MS) 2 : 1 acrylic clear coat; fast drying and easy polishing combine workshop efficiency with a sound cost/performance balance.
- 2K · Two-component
- Steel panel
- Galvanised steel
- Aluminium
- Plastic
Packaging
1 L · 5 L
Overview
What is 2K Acrylic MS Clear Coat?
ZN-320 2K Acrylic MS Clear Coat is a medium-solids (MS) two-component acrylic clear coat developed for professionals who want to maximise workshop efficiency while keeping an eye on the cost/performance balance. Its optimum solids content combines sufficient film build, comfortable spraying characteristics and controlled consumption. It provides a reliable topcoat across a wide range of work, from standard body and paint repairs to commercial vehicle refinishing.
Fast dust-free drying means parts spend less time in the booth and the daily workflow speeds up. Balanced flow limits the risk of runs on vertical surfaces while producing a smooth, glossy appearance. The cured film responds well to sanding and polishing, so minor defects such as dust nibs can be removed quickly and easily. These properties make ZN-320 an efficient solution for body shops working at a busy pace.
ZN-320 is mixed 2 : 1 by volume with ZN-430 2K MS Hardener and thinned with 10% ZN-510 Acrylic Thinner. This pairing keeps the flow and drying balance of the clear coat at an optimum level. It is used as the topcoat in standard repair systems built with ZN-210 4+1 Acrylic Primer Filler and basecoat; on spot repairs, the blend edge can be finished with ZN-520 Blending (Fade-out) Thinner. Cleaning the surface with ZN-530 is recommended as part of pre-paint preparation.
Key features
- Balanced film build from an optimum solids content
- Fast drying for shorter booth and waiting times
- Easy sanding and polishing for quick defect correction
- Comfortable spraying, controlled flow and low risk of runs
- Efficient solution for standard repairs and commercial vehicles
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, medium solids (MS) |
|---|---|
| Mixing ratio (by volume) | 2 : 1 (clear coat : hardener) |
| Hardener | ZN-430 2K MS Hardener |
| Thinning | 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 15–20 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 its flash-off 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
Mix 2 parts by volume of ZN-320 with 1 part of ZN-430 hardener, then add 10% ZN-510 Acrylic Thinner. Stir until the mixture is uniform and strain it into the spray gun.
- 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. Allow 5–10 min between coats; 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.
- 05
Polishing
Once the part has cooled completely, remove dust nibs and minor defects by fine sanding and polishing. Clean the spray gun with ZN-510 Acrylic Thinner immediately after use.
Storage and safety
- Store the product in its original, tightly closed container at 5–25 °C in a dry, well-ventilated place, away from sunlight.
- Flammable liquid: keep away from heat sources, sparks and open flames; do not smoke in the work area.
- Mixed product gels at the end of its pot life; do not keep leftover mixture in a closed container, and dispose of it in accordance with current regulations.
- Once hardener has been added, the mixture contains isocyanates; wear suitable respiratory protection, gloves and eye protection. Refer to the product's Safety Data Sheet (SDS) for full details.
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.
View product 
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 MS Clear Coat
Knowledge Centre
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Read articleGet a price quote for ZN-320
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