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Selemix 7-536/7-537 2K Polyurethane Direct Topcoat HS | 6,700+ Colours
Selemix 7-536/7-537 2K Polyurethane Direct Topcoat HS | 6,700+ Colours

Selemix 7-536/7-537 2K Polyurethane Direct Topcoat HS (70 GU)

SEL8717

Versatile, high solids 2-pack PU with 70% gloss finish for direct application to a variety of substrates without need for a primer.

  • Suitable for use on Steel, Cast Iron, Aluminium, Light Alloys, GRP and Painted Surfaces
  • Excellent anticorrosive properties
  • Available in 10%, 30%, 50%, 70% and 80% Gloss Levels (click to view product)
  • 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 Standard and Economy versions
  • For Professional Use Only
  • Please Note: Gloss levels are within +/- 10% depending on colour

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£752.76(incl. VAT)
£627.30(ex. VAT)
Quantity
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Available for Delivery (See Delivery Options Below)

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Description

Selemix 7-536/7-537 2K Polyurethane Direct Topcoat HS is a versatile, high solids 2-pack PU finish, available in five gloss levels, which can be applied directly to a variety of substrates without need for a primer, giving a very efficient process.

It offers excellent anticorrosive properties making it suitable for the finishing and protection of machinery, agricultural and construction equipment, and many other industrial painting applications.

Thanks to its ISO 12944-6 and MED Certification, Polyurethane Direct Topcoat HS is a true all-rounder for many paint jobs in the light industry.

Selemix 7-536/7-537 Polyurethane Direct Topcoat delivers a high performance single layer system, characterised by ease of application, high film thickness, very good adhesion on various substrates such as bare steel, aluminium, galvanised steel and fibre reinforced plastic.

Available in 10%, 30%, 50%, 70% and 80% Gloss Levels (click to view product) in over 6,700+ RAL, RAL Metallic, BS, NCS and Selemix TIC colours.

Also available in Standard and Economy versions.

For Professional Use Only.



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Features & Benefits

  • Versatile, high solids 2-pack PU finish
  • Available in 10%, 30%, 50%, 70% and 80% Gloss Levels (click to view product)
  • 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
  • Can be applied directly to a variety of substrates without need for a primer
  • Excellent anticorrosive properties
  • Suitable for application by a wide range of methods including conventional spray, HVLP spray, airless spray or air-assisted airless spray
  • Suitable for use on Steel, Cast Iron, Aluminium, Light Alloys, GRP and Painted Surfaces
  • Product can be purchased as a Two Component Pack, or as Base or Hardener only - please see the drop down menu
  • Also available in Standard and Economy versions



Product Codes Explained

The base component of Selemix 7-536/7-537 2K Polyurethane Direct Topcoat HS 70% Gloss is seperated into two product codes which are used to identify white and pastel colours from the mixed colours as below:

  • 7-536 - Selemix 2K Polyurethane Direct Topcoat 70% Gloss Base/Binder - Mixed Colours
  • 7-537 - Selemix 2K Polyurethane Direct Topcoat 70% Gloss Base/Binder - White & Pastel Colours
  • 9-075 - HS Hardener for Polyurethane Direct

This is for colour tinting only, the features of the product are the same.

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.

Steel (Blast Cleaned):

  • Blast clean to ISO 8501-1 SA 2.5 with a blast profile of maximum 40 µm Rz

Steel / Cast Iron:

  • Machine sand with P80-120 discs and degrease

Galvanised Steel and Phosphated Steel:

  • Abrade with SCOTCHBRITE® and degrease

Aluminium / Light Alloys:

  • Machine sand with P240-320 discs and degrease

GRP:

  • Machine sand with P240 discs and degrease

Painted Surfaces and Fillers:

  • Machine sand with P320-400 discs and degrease



Mixing

  • Thoroughly mix paint before activating and check colour before use
  • The speed of drying can be increased with use of 1-490 Thinner, or 6-550 Accelerator (added at 1-2%) but these can reduce the final gloss and shorten the pot life
  • Use of 1-490 Thinner AND 6-550 together is not recommended
  • Use of 1-490 Thinner or 6-550 when applied directly to aluminium is not advised

Mixing Ratio:

  • Selemix 7-536/7-537 2K Polyurethane Direct Topcoat HS
    • 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.

Mixing ratios between the Standard, High Solids and Economy versions of this product vary due to the different hardeners used.



Application Notes

Features Conventional Spray Airless Spray
Spraygun Setup:

Nozzle:

Gravity: 1.8mm

Suction: 1.8-2.0mm

Pressure feed:1.2-1.4mm

Nozzle:

7-530-7-535*: 11-17 thou 0.28-0.43mm

7-536-7-537*: 11-13 thou 0.28-0.33mm

*See Product Data Sheet for details of Spray Gun setup for different gloss levels
Air Pressure:

HVLP: 2 Bar

Standard: 2-3 Bar

 2-3 Bar
Fluid Pressure: N/A 100 Bar
Number of coats: 2 1-2
Flash-off between coats: 10-15 mins 10-15 mins
Drying: Air dry or bake at 60°C for 45 mins Air dry or bake at 60°C for 45 mins
Flash-off before bake: 5-10 mins 5-10 mins
Wet Film Thickness: 160-200 microns 160-200 microns
Dry Film Thickness: 80-100 microns 80-100 microns



Brush/Roller Application:

Please see the Product Data Sheet for detailed Application Instructions before use.



Theoretical Coverage

Theoretical coverage at 100 microns DFT:

  • Conventional Spray - 3.9-4.4 m²/L
  • Air Assisted Airless Spray - 4.7-5.2 m²/L

Note: Please see the Product Data Sheet for detailed information.



Drying Times

Drying Times 20°C
Dust Free 60 mins
Touch Free 1.5-2 hours
Tape Free 16 hours
Handleable 6-10 hours
Hard Dry 16 hours
Stoving 45 minutes at 60°C (according to film thickness)
Overcoating time

Minimum: when Hard Dry

Maximum: 5 months by itself without sanding

If 6-550 Accelerator or 1-490 Thinner are used, product can be recoated with itself up to 24 hours without sanding
Please Note: Lower temperature or film thickness higher than 100µm 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

Product Details
8717-928498

Data sheet

Manufacturer
Selemix
For Use By
Professional Use
Water / Solvent Based
Solvent Based
For Use On
Steel
Cast Iron
Aluminium
Light Alloys
GRP
Painted Surfaces
Sheen
70 GU Gloss
Single, Two or Three Pack
Two-Pack
Mixing Ratio
6 to 1
Application
Spray
Airless Spray
Air Assisted Airless Spray
Brush
Roller
Touch Dry (at 20°C)
2 hours
Pot Life (at 20°C)
2-3 Hours (1-2 Hours with 1-490 Thinner)
Recommended Dry Film Thickness
80-100 microns
Recommended Wet Film Thickness
160-200 microns
UN Number (Activator)
UN1263
UN Number (Base)
UN1263
Hard Dry
16 Hours
Dust Dry (at 20°C)
60 Mins
Colour(s)
Fully Tintable
Base Type
Solvent-Based
Suitable For Use On
Aluminium
Suitable For Use On
Steel
Suitable For Use On
Cast Iron
Suitable For Use On
Light Alloys
Suitable For Use On
Galvanised Steel
Suitable For Use On
Phosphated Steel
Suitable For Use On
GRP
Suitable For Use On
Compatible Existing Coatings
Finish
Gloss
Substrate
GRP
Substrate
Cast Iron
Substrate
Light Alloys
Substrate
Phosphated Steel
Substrate
Steel
Substrate
Galvanised Steel
Substrate
Blasted Steel
Substrate
Aluminium
Substrate
Painted / Primed Metal
Usages
High Corrosion Resistance
Usages
High Solids
Usages
Process Efficiency
Usages
Atmospheric
Usages
Anti-Corrosive
Usages
Force Dry Compatible
Usages
Stoving Compatible
Usages
Direct to Metal
Product Usage Type
Topcoat
Technologies
Solventborne
Technologies
2K
Application Methods
Airmix
Application Methods
Electrostatic
Application Methods
Conventional
Product Type
Polyurethane
Environment
Atmospheric
Touch Dry/Dust Free (@ 20-25°C)
2 hours
Drying Properties
Force Dry Compatible
Drying Properties
Stoving Compatible
Product Attributes
High Solids
Product Attributes
Anti-Corrosive
Attachments
Download
Product Data Sheet
Download
Safety Data Sheet - Base (Mixed Colours)
Download
Safety Data Sheet - Base (White & Pastel Colours)
Download
Safety Data Sheet - Activator (9-075 Direct HS Hardener)
Download
Selemix System Technical Chart
Download


Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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IMPORTANT SHIPPING & DELIVERY INFORMATION

Selemix 7-536/7-537 2K Polyurethane Direct Topcoat HS (70 GU) is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT


COVERAGE CALCULATOR
Units
Application by:
Total area²
Or enter length and width dimensions:
Length
Width

*All estimates are based on theoretical consumption rates for a single coat and do not take into account any substrate deviations or wastage

    

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