I would still advise against using candle wax on the base. Maybe on the tip and tail (but what is the point then?) but not on the running surface. The problem is not that the candle wax will 'eat through the base', but that the base will absorb some of the additives and might not hold a wax as well in the future.
Easy enough to get a proper wax in Singapore, so why risk it with a candle?