Carnauba Wax: Creating a sprayable epoxy mold release agent

Epoxy mold com­pound users know that car­nau­ba wax is an excel­lent mold release prod­uct as well as use­ful from many oth­er appli­ca­tions. His­tor­i­cal­ly, man­u­fac­tur­ers have used car­nau­ba wax exten­sive­ly in semi­con­duc­tor appli­ca­tions in sol­id form to get mold­ing equip­ment back into ser­vice after it has been tak­en out, or rub along the plunger when epoxy mold com­pound (EMC) sticks and caus­es it to seize.

Carnauba wax as an epoxy mold release agent

There is no won­der why car­nau­ba wax works so well as an epoxy mold release or ther­moset plas­tic mold release agent. It is because the car­nau­ba wax itself is most often the ingre­di­ent itself used in the man­u­fac­ture of these products.

Of course, in the man­u­fac­ture of epox­ies or oth­er ther­moset plas­tics, for­mu­la­tors use a sol­id ver­sion of the car­nau­ba wax. In sol­id form, car­nau­ba wax begins as a large sol­id mass that needs to be fur­ther processed in order to be used in an epoxy formulation.

Large, sol­id pieces are processed into chips or flakes or even into ground pow­der. This is the form that is use­ful to intro­duce a cer­tain per­cent­age of car­nau­ba wax into epoxy mold com­pounds.

How to turn solid carnauba wax into a sprayable liquid

Even in flake form, how­ev­er, this is not use­ful for mold release spray man­u­fac­tur­ers. In order to spray what would oth­er­wise be a sol­id, mold release spray man­u­fac­tur­ers need to turn a sol­id car­nau­ba wax into a liquid.

This is done by using two spe­cif­ic ingre­di­ents: a sol­vent and a pro­pel­lant. The sol­vent is the mate­r­i­al that dis­solves the sol­id into a liq­uid. Much the same as water is a sol­vent that can dis­solve a sol­id such as salt, the car­nau­ba wax sol­vent turns this sol­id into a liq­uid. The pro­pel­lant is the mate­r­i­al that then forces the liq­uid out of the can once pres­sure is applied.

CAPLINQ sup­plies a num­ber of epoxy mold release sprays that puts the won­ders of car­nau­ba wax into the sim­plic­i­ty of a spray.

For some rea­son though, not every­one knows that car­nau­ba wax is also avail­able in a spray ver­sion. This prod­uct does what every man­u­fac­tur­er was ask­ing for, to put the won­ders of car­nau­ba wax into a can so it could be sprayed. Chem­linq MRE-C909 a REACH and RoHS-com­pli­ant, sol­vent-based aerosol spray that puts the won­ders of car­nau­ba wax into the sim­plic­i­ty of a spray.

CAPLINQ is a spe­cial­ty chem­i­cals, plas­tics, and prod­ucts com­pa­ny that offers a vari­ety of car­nau­ba wax, sil­i­cone, non-sil­i­cone, and PTFE-based epoxy mold release agents includ­ing Chem­linq MRE-C909, MJ Gor­don Per­masil #909C, and Lin­qSil S‑100 mold release spray. Please con­tact us if you have any oth­er ques­tions about car­nau­ba wax or oth­er sprayable epoxy mold release agents.

About Chris Perabo

Chris is an energetic and enthusiastic engineer and entrepreneur. He is always interested in taking highly technical subjects and distilling these to their essence so that even the layman can understand. He loves to get into the technical details of an issue and then understand how it can be useful for specific customers and applications. Chris is currently the Director of Business Development at CAPLINQ.

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