The wax used depends on the mould. The recommended method for waxing is as follows:
- Before waxing, be sure the mould has fully cured. A post-cure mould needs higher ambient temperatures.
- Remove all contaminants from the mould’s surface. A mould surface treated with abrasive paste should be cleaned with a solvent. Let the surface dry before applying the wax; any moisture allowed to remain under the wax layer will noticeably cause the surface to blur after only one product release.
- Spread the wax evenly about 0,25 m2 at a time with a sponge or soft cloth, being sure the ambient temperature is at least 20 °C.
- Remove excess wax before it is allowed to dry. if by mistake or otherwise, the wax is prematurely allowed to dry, spread a second layer on top of the dried layer and polish them both at the same time. The best way to get an optimal polished surface is to use a dry, soft, and clean cloth. Do not use a polishing machine, as this will generate heat and cause the wax to sere together producing a matte finish instead of a hard glossy finish as desired.
- As soon as the wax has dried, change cloth and polish again until highly-glossy.
- Let the wax layer cure for 1,5-2 hrs (min 20 °C) before any further action is taken (e.g. adding another layer of wax). Curing in humid conditions will take longer.
New or newly treated mould
Spread at least four coats to a new, fixed, or newly treated mould according to the instructions given above. Additional layers will improve the surface quality of the mould. After the last coat, allow the wax film to harden for at least 12 hrs (min 20 °C), preferrebly 24 hrs before handling further. Before the mould is utilized, it is recommended to add a coating of polyvinylalcohol (PVA) onto the wax layer. After every single of the first 2-3 releases, spread a new layer of wax + PVA onto the mould. Allow the wax layer to cure for 1,5 hrs before adding the PVA. Remember to remove any PVA remnants after every release. This process will produce a well-established and resistant wax film on the mould’s surface which will prevent problems during successive releases.