<html><head></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:13px"><div id="yui_3_16_0_1_1497197098666_6213"><span id="yui_3_16_0_1_1497197098666_6348">Hank,</span></div><div id="yui_3_16_0_1_1497197098666_6213"><span><br></span></div><div id="yui_3_16_0_1_1497197098666_6213" dir="ltr"><span id="yui_3_16_0_1_1497197098666_6349">I know very little about syntactic foam (my sub is positive). I assumed that the strength was in the microspheres and not the resin but apparently that's wrong. Anyway, I'd like to work with you on a project sometime. I'll do some homework on buoyancy foam and get back to you.</span></div><div id="yui_3_16_0_1_1497197098666_6213" dir="ltr"><span><br></span></div><div id="yui_3_16_0_1_1497197098666_6213" dir="ltr"><span>The only thing I know at this point is that the density of the wax is .87 and the density of the epoxy is about 1.25.</span></div><div id="yui_3_16_0_1_1497197098666_6213" dir="ltr"><span><br></span></div><div id="yui_3_16_0_1_1497197098666_6213" dir="ltr"><span>Greg</span></div><div class="qtdSeparateBR" id="yui_3_16_0_1_1497197098666_6217"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_1_1497197098666_6394" style="display: block;"> <div style="font-family: verdana, helvetica, sans-serif; font-size: 13px;" id="yui_3_16_0_1_1497197098666_6393"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1497197098666_6392"> <div dir="ltr" id="yui_3_16_0_1_1497197098666_6391"> <font size="2" face="Arial" id="yui_3_16_0_1_1497197098666_6390"> <hr size="1" id="yui_3_16_0_1_1497197098666_6389"> <b><span style="font-weight:bold;">From:</span></b> hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Sunday, June 11, 2017 10:31 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] syntactic foam.<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1497197098666_6568"><br><div id="yiv4913663550"><div id="yui_3_16_0_1_1497197098666_6567"><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;" id="yui_3_16_0_1_1497197098666_6566"><div id="yiv4913663550yui_3_16_0_1_1497190369061_3501"><span>Greg,</span></div><div dir="ltr" id="yiv4913663550yui_3_16_0_1_1497190369061_3501"><span>There has to be good reason to make foam by other means than standard practices. Cost would be the biggest reason, and using wax will probably work, but is there a saving? Using wax </span>means you have to use a deeper rated sphere to offset the loss of reinforcement provided by the resin. I have no idea what the cost difference would be. Maybe the cost is still much better. When I look at Cliff's report, the resin is not the expensive part. Perhaps the direction should be, to look for a replacement for the spheres. In Cliff's report it shows the resin triples the sphere's performance. That implies that the true strength comes from the resin. Maybe a sawdust resin or a styrofoam granule resin is worth looking at also. Maybe it is a simple as air entrained resin?</div><div dir="ltr" id="yiv4913663550yui_3_16_0_1_1497190369061_3501">Fun to think about anyways.</div><div dir="ltr" id="yiv4913663550yui_3_16_0_1_1497190369061_3501">Hank</div> <div class="yiv4913663550qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv4913663550yahoo_quoted" style="display:block;" id="yui_3_16_0_1_1497197098666_6565"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;" id="yui_3_16_0_1_1497197098666_6564"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;" id="yui_3_16_0_1_1497197098666_6563"> <div class="yiv4913663550yqt3964107781" id="yiv4913663550yqt15977"><div dir="ltr"><font size="2" face="Arial"> On Sunday, June 11, 2017 6:22 AM, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div class="yiv4913663550y_msg_container"><div id="yiv4913663550"><div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div><span>Hi Scott,</span></div><div><span>Thanks for the offer, but I need foam for 3,000 feet.</span></div><div><span>Hank</span></div> <div class="yiv4913663550qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv4913663550yahoo_quoted" style="display:block;"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div class="yiv4913663550yqt0903242652" id="yiv4913663550yqt14923"><div dir="ltr"><font size="2" face="Arial"> On Saturday, June 10, 2017 9:03 PM, Scott Waters via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div class="yiv4913663550y_msg_container"><div id="yiv4913663550"><div><div>Hank,</div><div><br clear="none"></div><div>Hola from Costa Rica!</div><div><br clear="none"></div><div>Depends on if they are glass or carbon fiber spheres and what size they are. They are all pretty durable. We are actually cutting up the foam on Pisces and reattaching it to get the shapes we want. </div><div><br clear="none"></div><div>I do have a ton of syntactic foam that is cert to 400m that I'd sell you for super cheap. Like all of it for $200</div><div><br clear="none"></div><div>Thanks,</div><div>Scott Waters</div><div><br clear="none"></div><div><br clear="none"></div><div><br clear="none"></div><div id="yiv4913663550composer_signature"><div style="font-size:85%;color:#575757;">Sent from my U.S. Cellular® Smartphone</div></div><div><br clear="none"></div><div class="yiv4913663550yqt4119055720" id="yiv4913663550yqt61652"><div style="font-size:100%;color:#000000;"><div>-------- Original message --------</div><div>From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> </div><div>Date: 6/10/17 12:38 PM (GMT-06:00) </div><div>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org> </div><div>Subject: [PSUBS-MAILIST] syntactic foam. </div><div><br clear="none"></div></div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div id="yiv4913663550yui_3_16_0_1_1497115959959_2837">I have an idea, but not sure if it will work. My idea is to fill a neutrally buoyant container with macro and micro spheres. After the container is as full as possible, then fill with an environmentally friendly oil. This would be more buoyant than using a resin and less complicated and cheaper. My concern is, how well will the spheres stand up against breaking from being in contact with the other spheres and the container. Are these spheres delicate? </div><div id="yiv4913663550yui_3_16_0_1_1497115959959_2837">Hank</div></div></div></div></div><div class="yiv4913663550yqt4119055720" id="yiv4913663550yqt55244">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br clear="none"><br clear="none"></div></div> </div> </div> </div></div></div></div><div class="yiv4913663550yqt0903242652" id="yiv4913663550yqt24984">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br clear="none"><br clear="none"></div></div> </div> </div> </div></div></div></div><div class="yqt3964107781" id="yqt25372">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br><br></div> </div> </div> </div></div></body></html>