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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 |
