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Leak Proof Characteristics

Leak proof characteristics and weight change of void 10% powder Al monitors were  tested when processed with Placeram Standard Impregnation with PS-403 impregnant.

Photographs: void 10% powder Al monitor

Photographs: void 10% powder Al monitor   Photographs: void 10% powder Al monitor

Weight Change After Impregnation

Sample No. Initial Weight
[g]
Final Weight
[g]
Weight Change
[g]
% Change
[%]
1 790 0 0
2 600 0 0
3 460 0 0

Leakage Characterisitics

Sample No. Initial Leak Rate [ml/min]
(test press. @0.5kg/cm2)
Final Leak Rate [ml/min]
@0.5kg/cm2 @5.5kg/cm2
1 600 0 0
2 460 0 0
3 460 0 0

Tested with compressed air

Heat Resistivity of Impregnated Monitors

test press. @5.5kg/cm2[ml/min]

Sample No. 1 2 3
Baked at 100℃ 0 0 0
Baked at 150℃ 0 0 0
Baked at 200℃ 0 0 0
Baked at 250℃ 0 0 0
Baked at 300℃ 988 637 288

* Baking Time: 30min