Polyethylene powder designed for metal coating by electrostatic or electrokinetic spraying.
The recommended spray guns are electrostatic (Korona) or electrokinetic (Tribo).
Quality guarantee:
The whole production process is carried out under strict quality control standard per ISO 9001:2000.
Product specification sheet KPE 20
PE thermoplastic blend for electrostatic and electrokinetic spray coating.
Polisint thermoplastic powder is based on a modified polyethylene and is specially developed to provide long-term, protective surface layer of iron, galvanized steel and aluminum both for the interior and the exterior applications.
Polisint is resistant to mechanical damage, stress cracking, adverse weather conditions, detergents, chemicals, acids, solutions, salts and air pollutants in the air. The surface has excellent adhesion to metal. The resulting surface also provides very good abrasion and impact resistance.
Polisint KPE 20
Typical coating characteristics
Cured film thickness
Impact force (ASTM D 2794-93)
Adhesion (ASTM D 3359-93A)
Abrasion resistance Taber CS10 500g 500c
Salt bath - 1000 hours - cut with steel
120-250 micron
˃ 10 J
A1
4 mg
loss of film adhesion less than 10 mm from the cut
Melting point
Fluidity
MFI 190 ºC, 2,16 kg
Density
Particle size
Powder coverage
109 ºC
low
4 - 8 g/10´
0,93 g/cm3
90% less than 200 µm
5,23 m2/kg at 200 µm
Pretreatment:
The steel surface must be cleaned of grease and other impurities with technical petrol. For better adhesion of the material is recommended to slightly roughen the surface.
How to Use
excellent
good
good
good
no adhesion loss
no signs of corrosion
loss of film adhesion less than 10 mm from the cut
corrosion under layer of 2-3 mm
after 1000 hours
70
300 - 1000 µm
- acids and alkali
- salts /except peroxide/
- solutions 60 ºC
undamaged surface
cross-sectioned surface (X)
ISO 7253
ISO 2813
Adhesion
Chemical resistance
Neutral Salt Spray test
Gloss
Recommended film thickness
Cured film properties
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Coating:
Application by electrostatic and electrokinetic spray guns:
Applying with electrostatic (KORONA) gun requires negative polarity. Powder can be also sprayed with electrokinetic (TRIBO) guns. Recommended setting is 30-50 kV or 10-20 µA. After coating, the product must be heated up in oven at 190-220° C for 10-20 minutes depending on the thickness of the applied powder. Recommended thickness 250-300 microns.