Professional use only - from the 24th August 2023, adequate training is required before industrial or professional use of this product.
Should you require training, visit - https://www.safeusediisocyanates.eu/
Selemix 7-512 2K Polyurethane Extra Topcoat is a high quality 2-pack Polyurethane finish for solid colours and single-layer metallic finishes. It dries quickly to give an excellent quality finish with very good durability.
Suitable for the coating of machinery, agricultural and construction equipment, and many other industrial painting applications where a durable finish is required.
Available in three gloss levels (see drop-down menu above):
High Gloss (7-512 as standard), Semi-Gloss* and Semi-Matt* (*Blended from 7-511 and 7-512).
Note: Please refer to the Data Sheets for the gloss level purchased before use.
It is compatible with Selemix Epoxy and Polyurethane primers, giving a durable and hard wearing paint system.
Also available in Slow Curing, Accessible and HD UV versions (High Gloss Only).
Application can be by conventional spray or air assisted airless spray*.
*Important Note: for application of 7-512 High Gloss via Air Assisted Airless Spray please use Selemix 7-512 2K Polyurethane Extra Topcoat (Slow) or purchase 7-512 base and Selemix 9-065 Slow Hardener separately in the correct ratios as per the product data sheet.
Please contact our Technical Department on 0113 2455450 (option 2) or send a message to [email protected] for details.
For Professional Use Only.
Quick Links - Click To Jump To Section:
Features & Benefits
- High quality 2-pack Polyurethane finish for solid colours and single-layer metallic finishes
- Available in three gloss levels (see drop-down menu above):
- High Gloss (7-512), Semi-Gloss* and Semi-Matt* (*Blended from 7-511 and 7-512)
- Note: Please refer to the Data Sheets for the gloss level purchased before use
- Compatible with Selemix Epoxy & PU primers, giving a durable, hard wearing paint system
- Suitable for the coating of machinery, agricultural and construction equipment, and many other industrial painting applications where a durable finish is required
- Available in over 6,700+ RAL, RAL Metallic*, BS, NCS and Selemix TIC colours
- *Note: RAL Pearl colours shown are approximations only - matches will not be exact
- Product can be purchased as a Two Component Pack, or as Base or Hardener only
- Also available in Slow Curing, Accessible and HD UV versions (High Gloss Only)
- For Professional Use Only
Product Codes Explained
The base component of Selemix 7-512 2K Polyurethane Extra Topcoat is separated into three product codes which are used to identify the gloss levels which are produced by blending 7-512 with 7-511 Polyurethane Matt Topcoat as below:
- 7-512 - Selemix 7-512 2K Polyurethane Extra Topcoat - High Gloss
- 7-512/7-511 - Selemix 7-512 2K Polyurethane Extra Topcoat - Semi-Gloss
- 7-512/7-511 - Selemix 7-512 2K Polyurethane Extra Topcoat - Semi-Matt
The blending process is conducted prior to dispatch, and the gloss level and colour ordered will be supplied as requested upon delivery.
Please contact our Technical Department on 0113 2455450 (option 2) or send a message to [email protected] for details.
Surface Preparation
Apply only on a clean and dry surface with a temperature above the dew point to avoid condensation. In confined spaces, provide adequate ventilation during application and drying.
Painted Surfaces/Polyurethane or Polyester Fillers:
- Machine sand with P320-400 discs and degrease
Selemix Epoxy Primers or PU Primers:
- Refer to Primer TDS for recoat time
Mixing
- Note: For semi-matt and semi-gloss finishes, please refer to the separate Product Data Sheets before use
- Thoroughly mix paint before activating and check colour before use
High Gloss:
Features | Conventional Spray | Air-Assisted Airless |
---|
By Weight: 7-512 Topcoat 9-060/9-065 Hardener 1-420/1-208/1-470 Thinner | By Weight: 1000 250 200-300 | By Weight: 1000 250 (use 9-065*) 160-200 (use 1-208/1-470) |
By Volume: 7-512 Topcoat 9-060/9-065 Hardener 1-420/1-208/1-470 Thinner | By Volume: 4 1 0.9-1.4 (20-35%) | By Volume: 4 1 (use 9-065*) 0.7-1 (18-25%) (use 1-208/1-470) |
Viscosity (at 20°C): | 18-20 secs DIN4 | 20-25 secs DIN4 |
Pot Life (at 20°C): | 1.5 hours | 1.5 hours |
*Important Note: for application of 7-512 High Gloss via Air Assisted Airless Spray please use Selemix 7-512 2K Polyurethane Extra Topcoat (Slow) or purchase 7-512 base and Selemix 9-065 Slow Hardener separately in the correct ratios as per the product data sheet.
Please contact our Technical Department on 0113 2455450 (option 2) or send a message to [email protected] for details.
Semi-Gloss:
Features | Conventional Spray | Air-Assisted Airless |
---|
By Weight: 7-512/7-511 Topcoat 9-060 Hardener 1-420/1-208/1-470 Thinner | By Weight: 1000 200 200-300 | By Weight: 1000 200 200-300 |
By Volume: 7-512/7-511 Topcoat 9-060 Hardener 1-420/1-208/1-470 Thinner | By Volume: 4.5 1 0.9-1.4 (20-30%) | By Volume: 4.5 1 0.9-1.4 (20-30%) |
Viscosity (at 20°C): | 18-20 secs DIN4 | 18-20 secs DIN4 |
Pot Life (at 20°C): | 1.5 hours | 1.5 hours |
Semi-Matt:
Features | Conventional Spray | Air-Assisted Airless |
---|
By Weight: 7-512/7-511 Topcoat 9-060 Hardener 1-420/1-208/1-470 Thinner | By Weight: 1000 150 300-350 | By Weight: 1000 150 300-350 |
By Volume: 7-512/7-511 Topcoat 9-060 Hardener 1-420/1-208/1-470 Thinner | By Volume: 6 1 2-2.5 (30-40%) | By Volume: 6 1 2-2.5 (30-40%) |
Viscosity (at 20°C): | 18-20 secs DIN4 | 18-20 secs DIN4 |
Pot Life (at 20°C): | 1.5 hours | 1.5 hours |
Mixing Ratios at a glance:
- Selemix 7-512 2K Polyurethane Extra Topcoat - High Gloss
- 4 parts base : 1 part hardener
- Selemix 7-512 2K Polyurethane Extra Topcoat - Semi-Gloss
- 4.5 parts base : 1 part hardener
- Selemix 7-512 2K Polyurethane Extra Topcoat - Semi-Matt
- 6 parts base : 1 part hardener
Please Note: Refer to the Product Data Sheet for detailed information regarding mixing ratios for the relevant binder/base and hardener/activator used.
Application Notes
Features | Conventional Spray | Airless Spray |
---|
Spraygun Setup: | Nozzle: Gravity: 1.3-1.4mm Suction: 1.6-1.8mm Pressure feed: 0.85-1.2mm | Nozzle: 9-11 thou 0.23-0.28mm |
Air Pressure: | HVLP: 2 Bar Standard: 2-3 Bar | 2.5 Bar |
Fluid Pressure: | N/A | 80-100 Bar |
Number of coats: | 2 | 2 |
Flash-off between coats: | 10-15 mins | 10-15 mins |
Drying: | Air dry or bake at 60°C for 30-40 mins | Air dry or bake at 60°C for 30-40 mins |
Flash-off before bake: | 10 mins | 10 mins |
Wet Film Thickness: | 120 microns | 120 microns |
Dry Film Thickness: | 50 microns | 50 microns |
Please see the Product Data Sheet for detailed Application Instructions before use.
Theoretical Coverage
- High Gloss - 7.8-8.5m²/L at 50 microns DFT
- Semi-Gloss - 8.1-8.9m²/L at 50 microns DFT
- Semi-Matt - 7.0-7.4m²/L at 50 microns DFT
Note: Please see the Product Data Sheet for detailed information.
Drying Times
Drying Times 20°C |
---|
Dust Free | 10-15 mins |
Touch Free | 1-1.5 hours |
Tape Free | 16 hours |
Handleable | 4-5 hours |
Hard Dry | 10-12 hours or after bake (High Gloss & Semi-Matt)/12-18 hours or after bake (Semi-Matt) |
Overcoating time | Minimum: When Hard Dry (High Gloss)/14 Hours (Semi-Gloss & Semi-Matt) Maximum: 24 hours by itself without sanding |
Please Note: Lower temperature or film thickness higher than 50µm will extend drying times |
Health & Safety
- For comprehensive Health, Safety and Environmental advice, please refer to the relevant Material Safety Data Sheets and product can labels
- THIS PRODUCT IS FOR PROFESSIONAL USE ONLY