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PVC Coating Technology for wire mesh fencing

PVC Coating Technology:

First get rid of the rust from the wire mesh, then get rid of the oil, heat it to 350+50Cccording to the test result of heat capacity of the wire mesh. Then put the wire mesh into floating bed for 8-10 seconds, then get the surface floating flat under 200-240C, then freeze to the air temperature.

Major Index

Test items: total 10 items including coating thickness, adhesive property, anti-corrosion property

Test standard: GB1720, GB1732, GB1763, ASTM F1043-95

Serial No.

Test Item

Technical Requirement

Test Result

1

Average coating thickness, mm

min.0.38

1.05

2

Minimum coating thickness, mm

min.0.38

1.00

3

Coating thickness uniform, mm

max.0.05

0.05

4

Coating adhesive property

The coating film should combine firmly with the base material, no immigration after test

standard

5

Low temperature proof property

Temperature -40C height 1m, no surface breaking after test with 1kg ball

standard

6

Fire resistance property of the coating film

The sample should not burn after 5 minutes of being on fire, it should extinguish immediately after the fair being removed

standard

7

Acid solution soaking resistance

Soaked in 30% H2SO4 solution for 720 hours, the coating surface should not be softed, wrinkled, broken or have other defects

standard

8

Alkali solution soaking resistance

Soaked in 10% NaOH solution for 720 hours, the coating surface should not be softed, wrinkled, broken or have other defects

standard

9

Salt solution soacking resistance

Soaked in 3% H2SO4 solution for 720 hours, the coating surface should not be softed, wrinkled, broken or have other defect

standard

10

Weather resistance

The sample should have no apparent fading of color, breaking, bubbles, immigration or other defects. The shrinking of either sides should not exceed 1mm

standard

Note:

Above is only for reference