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製品紹介 MPA#5000 Mirror Backing Paint

1. Properties
ItemStandard value
Viscosity(Zahn cup #3/25℃)38±3sec
Specific gravity 1.30±0.02/20℃
Grind size(JIS A method30μ or less
Solid content(by weight)61±2%
Solid content(by volume)45±2%
Boiling range116〜172℃
Vapor densityHeavier than air
Evaporation rateSlower than ether
Flash point27℃

2.Specifications
Coating itemCurtain coating method
Viscosity(Ford cup#4/25℃)30sec.
Diluting solventXylene/Butyl Cellosolve=95/5(by weight)
Glass temperature in coating20〜30℃
Glass temperature in drying 120〜150℃
Drying time3〜4min
Dry film thickness425〜35μ
Amount of paint(g/m2)100〜120

3.Performance test results  A : Edge corrosion B : Spot corrosion
No.Testing itemTest resultTest condition
1Drying requirement140℃×4minGlass temperature
2Film thickness30μMeasured by depth gauge
3HardnessMitsubish pencil “UNI”
4Adhesion100/100Adhesive cellophane type applied at
1mm intervals in checker board pattern
5Acid resistanceA:No change
B:No change
Immersed in 5% HCL at normal temperature
For 2 hours
6Alkali resistanceA:No change
B:No change
Immersed in 5% NaOH at normal
Temperature for 1 hours
7Moisture resistanceA:No change
B:No change
At 60℃ RH 100% for 240 hours
8Hot water resistanceA:No change
B:No change
60℃ pure water for 240 hours
9Salt sprayA:No change
B:No change
DIN MIRROR TEST #50021
60℃ pure water for 240 hours
10Cass testA:No change
B:No change
DIN MIRROR TEST #50021
For 240 hours

The performance of a mirror coated by the MPA#5000 in the curtain coating method is as follows.

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