I have a bit of an addition to this...
if you want to use the alcohol method, make sure the alcohol you use is unscented, undyed (self-explanatory, really) and contains no nasty additives.
the scented types can leave a residue in the product (this happened to me
), some additives (like those in commercial grade methylated spirits) are not at all good if they stay in the product and get on your skin. dyed alcohol can, obviously, ruin the colour of the product.
a few details:
- isopropyl alcohol: this is the alcohol usually found in rubbing alcohol. it's also used as a VCR head cleaner and in electronics. it can be quite easy to find, however try to get medical grade (rubbing alcohol) rather than commercial grade (electronics cleaner).
- dye-free medical grade methylated spirits: medical grade metho is ethanol and methanol (the methanol is added to make it undrinkable and thus not subject to alcoholic beverage taxes). be sure that the product is fully dry before use as metho is irritating to the skin, and methanol is dangerous if ingested. *IMPORTANT - do not use commercial grade metho - it often has other chemicals added to it that are dangerous, toxic and very yucky smelling.
note: in the US medical grade methylated spirits may also contain castor oil (i think... if you check the label it should say if it does). metho is also called denatured alcohol in the US.
- surgical spirit is different to methylated spirits. it contains castor oil in addition to the alcohol, and sometimes a few other ingredients. I've never tried using it to repair broken powder products, but it should work quite well. it has been mentioned previously that it's great for pressing pigments as the castor oil acts as a binding agent.