Wind turbine blade coating

Product Item : 725-WS52-16
Category： Industrial Coatings
A two pack waterborne acrylic polyurethane paint.Excellent adhesion, flexibility and abrasion resistance, with the function of anti-icing. Excellent UV aging resistance.
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Produce Description

A two pack waterborne acrylic polyurethane paint.

Color: RAL7035.

Excellent adhesion, flexibility and abrasion resistance, with the function of anti-icing.

Excellent UV aging resistance.

Intended Uses

For wind turbine blade.

Product Information

Volume Solids	52%±2%
Finish/Sheen	Matte
Film Thickness and Theoretical Coverage	Min		Typical	Max
	Dryfilm Thickness(μm)	70 80 90
	Wetfilm Thickness(μm)	156 178 200
	Theoretical Coverage (m2/L)	6.43 5.62 5
Mix ratio	4.2:1~4.4:1（ Volume） 5.7:1~5.9:1（ mass）
Thinner	Water (mass ≤15%)
Cleaner	Water
Induction Period	Not applicable
Flash Point	Not applicable
Method of Application
Airless Spray	Tip size range	0.38-0.53mm
	Output pressure	≥15MPa
Air Spray	Tip size range	2.0-3.0mm
	Output pressure	≥0.4MPa
Brush/Roller	Need to coat several times to get film thickness.

Drying Information
	15℃			25℃		35℃
Touch Dry	40min			20min		15min
Hard Dry	4h			3h		2h
Pot Life	2h			2h		1.5h
Overcoating Data
Substrate Temperature
Overcoated by		15℃		25℃		35℃
		Min	Max	Min	Max	Min	Max
725-WS52-16		1h	24h	1h	24h	1h	24h

Pack Size

Part A	15.4kg/11.5L in 20 L container
Part B	2.6kg/2.6L in 4L container

Storage

Store in well ventilated and dry conditions when temperature is 0℃~35℃ and RH is less than 90%.Keep away from hot and fire. Shelf Life: 12months minimum at 25℃Subject to re-inspection thereafter.

Systems and Compatibility

Consult your Representative for the systems best suited for the surfaces to be protected.

Surface Preparation
725-WS52-16 should be applied over 725-S06-15. The primer surface should be clean, dry and free from contamination.725-WS52-16 must be applied within the coating interval specified (consult the relevant product data sheet). Areas of breakdown, damage etc. should be prepared to the specified standard and 725-S06-15 should be used before the application of 725-WS52-16.725-WS52-16 may be applied directly over aged 725-WS52-16 following thorough fresh water washing and degreasing provided the coating to be overcoated is in an intact and tightly adherent condition. Loose or flaking coatings should be removed back to a firm edge and 725-S06-15 should be used to repair the area before application of the full coat.
Curing condition
The suitable temperature for applying 725-WS52-16 is 10～35℃.
Apply in good weather. Temperature of the surface to be coated must be least 3℃ above the dew point when the humidity is lower than 85%.
It must be ventilated above 8h at pool ventilation area.
The paint group A and B shall be mixed evenly and no coarse particles shall be visually detected. Filter with 60-mesh filter when coarse particles are visually detected.
Mix according to the ratio of mass ratio A:B=5.7:1~5.9:1 or volume ratio A:B=4.2:1~4.4:1. Add group B into group A and mix evenly before coating application.