Wax coating your 3D print to make it water proof

thingiverse

Make Your 3D Print Waterproof Without Any Damage Ensure your 3D print is dry and clean to start. Melt the paraffin wax using a heater gun until it turns into a smooth liquid. Brush all surfaces of the 3D print evenly with melted paraffin wax using an old toothbrush, being cautious not to cover your fingers. Make sure every area receives even coverage; this might require handling the 3D print from various angles. Be careful when reheating the coated 3D print as hot paraffin and air can catch fire easily. Polish away excess paraffin wax residue using a paper towel, carefully avoiding overheating your 3D print again. This treatment maintains water resistance in addition to protecting against food for you. You can use the waterproof 3D model beyond paraffin's melting point.