Thermosetting high antisepsis Powder Coating
The thermosetting high antisepsis powder coating is a kind of modified epoxy antisepsis powder coating, which has the properties of good anti-acid,anti-alkli,anti-solvent,heat resistance, wet and cold resistance, It is used for pipeline carrying oil, gas, and water. The products we produced is advanced than that of other suppliers not only in domestic but also in the foreign countries.
Specifications:
PE three layer (the inner layer is antisepsis powder), Single antisepsis, Double antisepsis Three antisepsis(the outside one is antisepsis powder with good durability), usually used for pipeline in open air, steel contraction shelf
Properties:
Specific gravity:1.3-1.5g/cm3 Non-moisture content: ≥99.4% Magnetism content:≤0.002%
Particle size: 250um≤0.2% 150um;≤3% Curing time: It depends on the different type.
Application Flow chart:
workpiece→(medium channel) pre-heating→sandblast→catch dust→heating(medium channel)→electrostatic spray→curing→cooling →inspect→finished products.
Remark: The inside of pipeline shall be used tribo-gun, pump method and hot spraying method. The outside of pipeline usually adopted electrostatic spraying method, and for special workpiece usually adopted pipelining and electrostatic spraying method. Before spraying, the workpiece needs pre-heating.
Request when application:
Polishing and eliminating rust: the grade is Sa2.5(GB/T8923)
Anchor deepness: 40-100um
Heating(medium channel): 180-250°C
Film Thickness: PE three layer: 80-150um
Single layer: 400±50um
Double layer: Normal grade ≥620um
Strong grade≥800um
Three layer:≥1000um
Neglect Check: Use 5V/um Volts D.C.
Packaae and Storaae:
Every PE bag contain 20KG, stored in cool and dry place below temp 30°C for 1 year, far from fire.
Film properties:
48h cathodes disbandment: ≤6mm
28d cathodes disbandment: ≤6mm
Cross-section porosityt(two layer as the base layer): 1 -4grade
Interface porosity(two layer as the base layer): 1 -4grade
Impact resistance 1.5J(-30°C ± 3°C): No pinhole
24 or 48h adhesion: 1-2 grade
Electric intensity (MV/m) : ≥30
Volume resistance(Ω·m):≥1×1013
Wearing resistance(L/μ M):≥3
Chemical resistance(90d): unchangeable
Single layer flexibility 3° (-30°C ± 3°C): No crack
Two layer flexibility 3° (-30°C± 3°C):No crack
Two layer 10J resistance(normal grade thickness): No pinhole
Two layer 15J resistance(strong grade thickness): No pinhole
Two layer Scratch resistance(30kg): scratch deepness ≤350um, no neglect.
Two layer Scratch resistance(SOkg): scratch deepness≤500um, no neglect.
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