Resin and Bath Bombs…. Tagged: resin-techniques This topic has 1 reply, 2 voices, and was last updated 7 years, 6 months ago by Katherine Swift. Viewing 1 reply thread Author Posts May 23, 2017 at 9:07 pm #8924 DanielleGuest Hi. I’ve never used resin before, so I have a question. I have a plastic resin mold. Can I use the mold for a bath bomb after having resin in it? Or is that a no no? Thanks! May 23, 2017 at 10:59 pm #8928 Katherine SwiftKeymaster Once you have used a mold for resin, I wouldn’t use it for bath bombs. Author Posts Viewing 1 reply thread The topic ‘Resin and Bath Bombs….’ is closed to new replies.