Outside the single-layer nodulizing epoxy powder the coating (carries out the SY/T0315-2005 standard) the monolayer nodulizing epoxy powder coating anticorrosion steel pipe is suitable for medium and so on transportation petroleum, natural gas, water, the operating temperature for - 30°c-100°c, this coating has the painting operation simple, not to have the pollution, the coating anti-impact and the bending property is good, the heat resistance higher characteristic, in domestic and foreign obtains the widespread application.
Table outside 1 single-layer epoxy powder coating thickness
number
Coating rank
Smallest thickness
μm
1
Ordinary level
300
2
Strengthens level
400
Table 2 single-layer nodulizing epoxy powder coating technical specification
number
Test subject
Qualitative index
Testing method
1
Outward appearance
Smooth, the luster even, does not have the air bubble, not to have the dehiscence and the shrink hole, the permission has mild orange peel pattern
Measures with the eye
2
Thermal characteristics
Conforms to the powder plant to assign characteristic
AppendixB
3
28d bears the negative pole peeling,mm
≤8.5
AppendixC
4
24h or 48h bear the negative pole peeling ,mm
≤6.5
AppendixC
5
Sticks the surface factor of porosity rank, level
1~4
AppendixD
6
Cross section factor of porosity rank, level
1~4
AppendixD
7
Anti-curving 30(Ordering stipulated lowest experimental temperature±3°c)
Non-crack
AppendixE
8
Anti-1.5J impact(-30°c)
Non-leaking point
AppendixF
9
24 h adhesions, level
1~3
AppendixG
10
After curving, coating 28d bears the negative pole to strip
Non-crack
AppendixH
11
Electric strength,MV/m
≥30
GB/T1408.1
12
Volume resistivity,Ω.m
≥1×1013
GB/T1410
13
Bears chemical etching
Qualified
AppendixI
14
Resistance to wear (sand-out law), L/μm
≥3
AppendixJ
This coating has the painting operation simple, no pollution, the coating anti-impact and the bending property is good.
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