... ST03 Sealant-spreading machine is base stock pump,curing agent pump,proportioning pump,up and down system of ... the base pump is drived by hydraulic system,curing agent is drived by air moter.This two system ... to high pressure,and the same with the curing agent,, then send it to the proportion pump,the ... 1—14:1 Base stock barrel: 55gallon(200L)Curing agent barrel; 55gallon(20L) Maximum gas consumption:0.5M3 ...