LC-1540 hardener for polyurethane powder coatings

Specifications 1. Good weather resiatace

2. good flow properties

3. high Cross-linking density

4. Excellent chemical resistance

LongCester®LC-1540 hardener for polyurethane powder coatings is a hardener for outdoor resistant polyurethane powder coatings.   1. Good weather resiatace and good flow properties
2. High Cross-Linking Density with excellent chemical resistance 3. Excellent impact resistance.   Product specifications

Property	Range	Test Method
Apperance	Clear flake	Visual
Tg (°c )	45-55	ISO11357
Equivalent weight	approx.310
Melting Range(°c )	approx.70-80
Non-blocked NOC-content	max.2.0	ISO 11909

  Starting Formulation

Component	Weight
Longcester ®P1200	300.0
LC-1540	61.0
Titanium dioxide	150.0
LC-88 Flow agent	5.0
Benzoin	3.0

  Film Properties

Item	Result	Test Method
Film thickness, µm	approx.60	ASTM D1186
Gloss @ 60°, %	min.90	ASTM D523
Direct/reverse impact, inch lbs	160/160	ASTM D2794
1/8" Conical mandrel	pass	ASTM D522
Adhesion(cross cut)	5B	ASTM D3359
Pencil hardness(Mar)	H	ISO 15184-98

   Packaging: White PE bag, N.W.25kg/bag.   Storage: The products can be stably stored for at least one year when kept in closed containers in a dry place at temperature below 30°c. Avoid exposure to direct sunlight.   Chinacoat 2012 Lab Testing