<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hank,</div><div id="AppleMailSignature">I formed my ballast tank out of polystyrene, fibreglassed over the top</div><div id="AppleMailSignature">& dissolved the polystyrene out with petrol. Petrol being cheaper than acetone.</div><div id="AppleMailSignature">It dissolved it to a sloppy consistency that you could scrape out, but left</div><div id="AppleMailSignature">a hard shell of plastic in places. Maybe check a sample out to see how it dissolves</div><div id="AppleMailSignature">with petrol & acetone.</div><div id="AppleMailSignature">Alan<br><br>Sent from my iPad</div><div><br>On 30/07/2018, at 10:04 AM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div>Hi All,</div><div>I am going to repurpose a couple of dock floats that are ABS plastic I think and foam filled. I need to remove the foam. I understand that Acetone works for that. I have never done this, so what do I do? </div><div>Hank</div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"></div></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Personal_Submersibles mailing list</span><br><span><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br><span><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br></div></blockquote></body></html>