Specialized in producing high-quality lc-552 hydroxyalkylamide crosslinker, LONGCAI is one of the best lc-552 hydroxyalkylamide crosslinker manufacturers and suppliers in China. Equipped with a professional factory, welcome to buy CE certification products at good price from our company.

General Description

LC-552 is a widely used in exterior polyester powder coatings.

Excellent color stability.

· Molecular Formula:C14H28N2O6

· Molecular Weight:320

· Proven exterior durability in florida

· No hazard labelling required

Extrusion & Application Conditions

Extruder:Lingyu SLJ-20

Zone I temp:85~105℃

Zone II temp:110~125℃

Screw speed:400~500rpm

Panel:0.5mm pre-treated cold-rolled steel

Spray gun:Lingyu JP-80

Voltage:60~90kV

Curing cycles:15 min. @ 180℃

Packaging

· White PE bag, N.W.25kg/bag

Storage

The product can be stably stored for at least one year when kept in closed containers in a dry place at temperature below 30℃.Avoid exposure to direct sunlight.

Product Specifications

Property	Range	Test Method
Appearance	White powder	Visual
Hydrpoxyl number [mgKOH/g]	550~650	ISO 3001
Melting Range (℃)	100~110	ISO11357-1
Water content	<1.0%	Longcai method

Starting Formulation

Property	Range
Longcester® P 8518	300.0
LC-552	15.8
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 @ 60o, %	min. 85	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