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Depending on what plastic you use to print, it would require different types of sealer. If you print with PLA plastic, you don't need to seal it. However, if you print with ABS plastic, I usually seal using a quick acetone bath, followed by a nice drying session and a vigorous cleaning session. For other plastics and material, I reccomend exploring your options, while also remembering to be safe!
Thanks for catching that error! I forgot to put in the part about sealing it after the print is done!
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