Wind turbine blade putty

Product Item : 725-S07-14
Category： Industrial Coatings
A three-component solvent-free polyurethane putty. Excellent flexibility and adhesion, fast drying, easy to polish.
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Produce Description

A three-component solvent-free polyurethane putty.

Excellent flexibility and adhesion, fast drying, easy to polish.

Intended Uses

Designed for wind turbine blade. As a putty for repairing the surface defects on epoxy or polyester based FRP wind turbine blade.

Product Information

Volume Solids	≥98%
Finish/Sheen	No applicable
Film Thickness	Consultation
Mix ratio	Part A : Part B = 3.2:1~3.3:1（Volume）5.5:1~5.7:1（ mass），Part C: 0.4-0.6% by total weight.
Thinner	Not recommended. Use 725-NX-701 thinner only in exceptional circumstances (mass 5%)
Cleaner	725-NX-701
Induction Period	Not necessary
Flash Point	Part A	Not available
	Part B	Higher than 100℃
	Part C	Higher than 31℃
	Mixed paint	Not available

Method of Application

Knife

Drying Information
	5℃	15℃	25℃	35℃
Touch Dry	110min	85min	30min	20min
Hard Dry	4h	3h	1h	0.6h
Pot Life with Part C	5min	4min	3min	2min
Pot Life without Part C	25h	24h	10h	8h

Overcoating Data	Substrate Temperature
Overcoated by	5℃	15℃	25℃	35℃
Overcoated by	Min Max	Min Max	Min Max	Min Max
725-S06-15	4h 20d	3h 14d	2h 10d	1.5h 7d
Pack Size
Part A	10kg/5L in 10L container
Part B	1.8kg/1.5L in 2L container
Part C	0.4kg/0.4L in 0.5L container

Storage

Store in well ventilated and dry conditions when temperature is -10℃~40℃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
Clean dust,grease,water droplets and other pollutants.Using pneumatic grinding tools or manual with 120 sandpaper to clean up blade surface thoroughly. Grinding is required before any recoating.
Curing condition
The suitable temperature for applying 725-S07-14 is 5～35℃.
According to the ratio of mass ratio A: B = 5.6:1, pour the B component into the A component, stir well and stand aside for use. Take out appropriate amount of A-B mixed putty, add in the total weight of the mixed putty about 0.4%~0.6% of the Part C, stir evenly and immediately scrape.