<p>Does a filament exist that can resist ozone (like certain silicone tubing's can). Most glass bottles come with tin or plastic screw hard tops and I would like to replace the screw caps with something that is more resistant to ozone.</p>

<p>The reason for this is I make my own homemade ozonated oil in glass bottles and I would like to print out different hard screw top caps for some of the bottles.</p>

[{'answer_id': 13476, 'author': 'R.. GitHub STOP HELPING ICE', 'author_id': 11157, 'author_profile': 'https://3dprinting.stackexchange.com/users/11157', 'pm_score': 3, 'selected': True, 'text': '<p>If making your own caps ends up being the best solution, TPU (thermoplastic polyurethane) is probably your best bet. I don\'t have specific information on printed TPU filament and ozone, but TPU is widely regarded as one of the most chemical-resistant materials you can easily print with, and <a href="https://ozonesolutions.com/blog/ozone-compatible-materials/" rel="nofollow noreferrer">this page by Ozone Solutions</a> rates polyurethane (no mention of specific types) A/Excellent described as:</p>\n<blockquote>\n<p>Ozone has <strong>no effect</strong> on these materials. They will last indefinitely.</p>\n</blockquote>\n<p>Being at least slightly flexible, TPU will also yield a good seal without any additional gasket. You should probably choose an unpigmented &quot;natural/clear&quot; TPU filament in case the pigments do react.</p>\n<p>It might (probably would) also work to coat an existing cap with polyurethane. I\'m not sure how you\'d best get it to adhere, but lightly sanding the plastic then using a spray in multiple coats is what I\'d try first.</p>\n'}, {'answer_id': 13490, 'author': 'Davo', 'author_id': 4922, 'author_profile': 'https://3dprinting.stackexchange.com/users/4922', 'pm_score': 0, 'selected': False, 'text': '<p>According to <a href="https://www.calpaclab.com/polyetherether-ketone-peek-chemical-compatibility-chart/" rel="nofollow noreferrer">https://www.calpaclab.com/polyetherether-ketone-peek-chemical-compatibility-chart/</a> and <a href="https://www.polyfluor.nl/en/chemical-resistance/peek/" rel="nofollow noreferrer">https://www.polyfluor.nl/en/chemical-resistance/peek/</a> PEEK is very resistant to ozone.</p>\n\n<p>PEEK does cost about as much per gram as silver.</p>\n'}, {'answer_id': 15836, 'author': 'Alexandreads', 'author_id': 27268, 'author_profile': 'https://3dprinting.stackexchange.com/users/27268', 'pm_score': 2, 'selected': False, 'text': '<p>This is highly relevant: PETG is very resistant to Ozone.</p>\n<p><a href="https://www.plasticsintl.com/chemical-resistance-chart" rel="nofollow noreferrer">https://www.plasticsintl.com/chemical-resistance-chart</a></p>\n'}]
['https://3dprinting.stackexchange.com/questions/13466', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/20878/']