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2018 MARCH 30TH CASTING IMPREGNATION MATERIAL

Durable Features of Hardened Resin

  • Objective：Durability and hardness comparison of UC168 hardened resin
  • Testing：In the short aluminum hose (thick 3mm × width 17mm), cast is full of infusion and placed in 90 ° C hot water heating for 10min. After hardening, hardened resin is cut into 40mm testing pieces.
  • Conditions：Place the testing pieces in all liquids, and immerse for 7 days in the room temperature.

            1.Natural Drying

            2.Oven Drying (100°C × 1hr)

  • Weight Change Rate = (initial weight - measured weight) / measured weight × (100%)
  • Result：
Item Weight Change Rate
(7 days later) 【wt%】 		Initial Weight
【Shore-D】 		Measured Weight
【Shore-D】
Gasoline Resistance 1. 0.46
2. 0.45 		80 83
Solvent Resistance
Toluene 40%
Benzene 40%
Xylene 20% 		1. 0.33
2. 0.31 		80 82
Acid Resistance：H2SO4
(0.1N/pH1) 		0 80 80
Alkaline：NaOH
(0.1N/pH13) 		0 80 80

The weight change of gasoline and solvent resistances.
1. Natural drying 2. Comparison of heating and drying

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