Railway vehicles
A finishing layer on previously primed and painted exterior surfaces of carriages and locomotives.
Ready-to-use paint or coating
AKRYL 2K PU Clearcoat
A transparent finishing material for a protective and decorative coating system. Applied over previously prepared coats in accordance with the system's application procedure.
TypeTwo-component
LayerFinishing clearcoat
Base : hardener20 : 8 by mass
Thickness20-30 µm
About the material
The finishing layer in the coating system
Component A is an acrylic copolymer solution; component B is a polyurethane hardener. The clearcoat is described as the finishing layer of a system for exterior surfaces of passenger carriages and other vehicles.
Material selection and the application process depend on the substrate, previous coats and service conditions. Request the current TU specification and instructions before use.
Purpose
Where the material is used
The list is based on the AKRYL presentation. Suitability for a specific project is confirmed through technical selection.
Vehicles and transport equipment
A protective and decorative finish applied as part of an agreed coating system.
Separate supply
The clearcoat can be requested separately, subject to a compatibility check with existing coats.
Specifications
AKRYL 2K PU Clearcoat: specifications
Values are taken from the company presentation. Before ordering, check them against the current TU specification and the supplied material's quality documentation.
| Base-to-hardener ratio by mass | 20 : 8 |
|---|---|
| Pot life after mixing at 20 ± 2 °C | At least 3 h |
| Coating thickness | 20-30 µm |
| Non-volatile content by mass | At least 50 % |
| Drying to degree 3 at 20 ± 2 °C | No more than 8 h |
| Adhesion | No more than 1 point |
| Flexibility on bending | No more than 1 mm |
| Direct impact resistance | At least 50 cm |
| Water resistance at 20 ± 2 °C | At least 24 h |
| Resistance to 3 % NaCl solution at 20 ± 2 °C | At least 8 h |
| Thinning level | No more than 15 % |
| Theoretical consumption of the clearcoat base for a film of 20-30 µm | 60-80 g/m² |
| Drying to degree 3 at (60+2) °C | No more than 2 h |
These are individual material specifications, not test results for the complete system. Requirements and test methods must be checked against current technical documentation.
Preparation
What to check before application
Check the underlying coats
Specify the enamel, condition and elapsed time since application of the previous coating.
Prepare the 2K material
Mix the base and hardener according to the current TU specification immediately before application.
Agree the finish
Confirm gloss, thickness, drying and appearance using the selected system.
Components, application and storage
| Component B | AKRYL 2K PU Hardener, TU 24.72.28-056-49740748-2025 |
|---|---|
| Thinner | PU Akryl, TU 20.30.22-055-49740748-2025; no more than 15 % by mass. |
| Mixture preparation | Stir the base and hardener separately first. After mixing, allow 10-15 minutes before application. |
| Application | Air or airless spray; a brush is permitted on areas smaller than 1 m². One coat with a dry film thickness of 20-30 µm. |
| Conditions | From +10 °C; relative humidity no more than 80 %; surface temperature at least 3 °C above the dew point. |
| Intercoat drying in a multi-coat procedure | The manufacturer's instructions specify 8 h; agree the need for an additional coat and the conditions for the selected system. |
This information is taken from the manufacturer's materials and does not replace the current application instructions. Request them for the selected material and project before application.
Theoretical consumption is given for the specified coating thickness. Actual consumption depends on application methods and conditions, roughness, object geometry and process losses.
Request AKRYL 2K PU Clearcoat
Specify the object to be coated, substrate material, service conditions, required colour, area and application method. We will clarify technical documents and supply terms.
Individually or as a systemIndividual materials from the 2K system can be requested separately. Compatibility with other coatings must be checked.
Questions
What to clarify before ordering
Is the clearcoat required for the system?
The VNIIZhT conclusion evaluated a four-material system, including the clearcoat. A different procedure cannot be treated as equivalent to the tested system.
Can the clearcoat be purchased separately?
Yes. For separate use, compatibility with the previously applied enamel must be checked.
Is the clearcoat suitable for every enamel?
Universal compatibility is not claimed. The specific system must be checked.
What is the base-to-hardener ratio?
The presentation specifies 20 : 8 by mass for this clearcoat.
What are the clearcoat application conditions?
The presentation specifies at least +10 °C, humidity no more than 80 %, and substrate temperature at least 3 °C above the dew point.
How can the clearcoat be applied?
Airless and air spray are listed, with a brush also permitted on areas smaller than 1 m². The specific method depends on the system and finish requirements.
What consumption should be used in calculations?
The presentation gives a theoretical 60-80 g/m² for the specified thickness. Actual consumption depends on the application method, surface profile and losses.
Catalogue