K450 HIGH PERFORMANCE POLYURETHANE COATING

PRODUCT DATA:

- Excellent gloss and clour retention
- Easyapplication property
- Good resistanceto chemicals, abrasion and weather
- Most suitable for useas a finish coat or coats with epoxy and polyurethane based protective system

PRODUCT INFORMATIOM

Designed to provide maximum outdoor durability with excellent colour and gloss retention properties for new structural steel or for maintenance in aggressive and corrosive environment.
Excellent tolerance to low temperature curing conditions.


APPLICATION:

PRACTICAL APPLICATION RATES
Micron Per Coat Airless Spray Conventional Spray Brush
Dry 50 50 25
Wet 100 100 50

AVERAGE DRYING TIME

AmbientTemperature TouchDry HardDry Overcoating Interval Potlife
Minimum Maximum
15ºC 2.5 hours 24 hours 8 hours Indenfinite 5 hours
25ºC 1.5 hours 16 hours 6 hours Indenfinite 4 hours
35ºC 1 hour 12 hours 4 hours Indenfinite 2 hours

Application Method
Airless or conventional spray. Brush may be used for smaller area.
Mixing Ratio (by volume) 4 Parts Resin to 1 Parts Cure.
Thinner Thinner No. 5. (Maximum 5% addition)

Airless Spray Nozzle Size : 0.33mm (13 thou)
Fan Angle : 65º
Operating Pressure : 140 kg/cm² (2000 psi)

Conventional Spray Nozzle Size : 1.27mm (50 thou)
Atomising Pressure : 3.5 kg/cm² (50 psi)
Fluid Pressure : 0.7-1.0 kg/cm² (10-15 psi)

Brush This product is suitable for brush application. Application of more than one coat may be necessary to give equivalent dry film thickness to a single spray applied coat.


APPLICATION CONDITIONS AND OVERCOATING

This product should preferably be applied at temperature in excess of 10ºC, In conditions of high relative humidity i.e. 80-85%, good ventilation conditions are essential. Substrate temperature should be at least 3ºC above the dew point.
At application temperature below 10ºC, drying and curing time will be significantly impaired. Application at temperature below 5ºC is not recommended.
The maximum air and substrate temperature for application is 40ºC providing conditions allow satisfactory application and film formation.
In order to achieve optimum water and chemical resistance, temperature needs to be maintained above 10ºC during curing.
If it is desired to overcoat outside the times stated on the data sheet, please seek advice from Alspec representative.

PHYSICAL DATA:

Volume Soild 50%
Theoretical Coverage 10 m²/litre @ 50 microns DFT
Type 2 components
Packing Ratio 4 litres Resin : 1 litres Cure
Colour Availability Selected Range
Flash Point 30ºC (mixed)
Recommended Thickness 50 microns DFT
Recommended Thinner Thinner No. 5

SURFACE PREPARATION:

The surface to be coated must be clean and dry and free from all visible traces of surface contaminants.