The correct mold cleaning ratio for epoxy Mold Compound (EMC)

Mold con­di­tion­er is a “more-high­ly” wax-filled mold com­pound that con­di­tions the mold for trans­fer mold­ing epoxy mold com­pound. Pri­or to con­di­tion­ing the mold, it is a com­mon indus­try prac­tice to use Melamine / Clean­ing pel­lets to clean the mold chase/die. The mold clean­ing process typ­i­cal­ly leaves the mold sur­face very dry, and this is why mold con­di­tion­ing is performed.

There are two ways to con­trol the mold clean­ing frequency.

1. You may do it on a “time” basis, ie. once per day or every 24hr.
2. Anoth­er way is on a “No. of mold shots” basis, e.g. after 400, 500 or 600 mold shots.

Both of these fig­ures are typ­i­cal indus­try stan­dards, but your par­tic­u­lar sit­u­a­tion may depend on the mold design and mold com­pound prop­er­ties. Some mold com­pound may dirty the mold very eas­i­ly after a few hun­dred mold shots or less per day. In this case, it is rec­om­mend­ed to imple­ment mold clean­ing fre­quen­cy base on “No. of mold shots”.

When order­ing mold con­di­tion­er with epoxy mold com­pound — a use­ful ration is 50:1. You should order at least 1kg of mold con­di­tion­er for every 50kgs of mold com­pound. You may be more, you may need less, and this can be test­ed and val­i­dat­ed. This is a good start­ing point.

To learn more regard­ing epoxy mold clean­ers and epoxy mold con­di­tion­ers, vis­it us at www.caplinq.com. You can also con­tact us if you have any queries regard­ing CAPLINQ’s Epoxy Mold Clean­ers and Con­di­tion­ers.