Plastic screw cap restoration - Oozing Goo - The Lava Lamp Syndicate2024-03-28T21:31:28Zhttps://oozinggoo.ning.com/forum/topics/plastic-screw-cap-restoration?commentId=1566398%3AComment%3A508985&feed=yes&xn_auth=noWell, one all evening and ove…tag:oozinggoo.ning.com,2014-01-24:1566398:Comment:5095032014-01-24T14:12:27.094ZRich Chttps://oozinggoo.ning.com/profile/RichCummings
<p>Well, one all evening and overnight cycle and the cap survived so far. I haven't sanded and painted it yet, couple more cycles before I feel confident it will hold up. This epoxy is VERY hard so I think it is going to do the trick. Will be a PITA to sand down though!</p>
<p>Well, one all evening and overnight cycle and the cap survived so far. I haven't sanded and painted it yet, couple more cycles before I feel confident it will hold up. This epoxy is VERY hard so I think it is going to do the trick. Will be a PITA to sand down though!</p> The crack being horizontal ve…tag:oozinggoo.ning.com,2014-01-24:1566398:Comment:5093632014-01-24T13:45:14.727ZJushttps://oozinggoo.ning.com/profile/Jus
<p>The crack being horizontal versus vertical problem hadn't even occurred to me. Sounds like you're on your way to solving your cracked cap issue now! Good luck- </p>
<p>The crack being horizontal versus vertical problem hadn't even occurred to me. Sounds like you're on your way to solving your cracked cap issue now! Good luck- </p> When I got home tonight, the…tag:oozinggoo.ning.com,2014-01-23:1566398:Comment:5093372014-01-23T23:58:00.188ZRich Chttps://oozinggoo.ning.com/profile/RichCummings
<p>When I got home tonight, the epoxy had full set and is hard as a rock. This batch will be much harder to sand. FYI, I used JB Weld this time around. Anyway, I figured I run the lamp through a few cycles with the cap on before I go to all the trouble of sanding and painting to make sure it will hold up.</p>
<p>When I got home tonight, the epoxy had full set and is hard as a rock. This batch will be much harder to sand. FYI, I used JB Weld this time around. Anyway, I figured I run the lamp through a few cycles with the cap on before I go to all the trouble of sanding and painting to make sure it will hold up.</p> That is sort of what I've don…tag:oozinggoo.ning.com,2014-01-23:1566398:Comment:5089852014-01-23T19:14:52.862ZRich Chttps://oozinggoo.ning.com/profile/RichCummings
<p>That is sort of what I've done this time around. That solution would work great for vertical cracks, unfortunately mine is a horizontal one. When the cap is screwed down, the force of trying to make it seal against the rubber ring is also trying to force the crack open again. This time around I've laid on the epoxy inside and out much thicker while smoothing it into round curves. The idea is to provide additional thickness strength and additional surface area to which the epoxy can grab…</p>
<p>That is sort of what I've done this time around. That solution would work great for vertical cracks, unfortunately mine is a horizontal one. When the cap is screwed down, the force of trying to make it seal against the rubber ring is also trying to force the crack open again. This time around I've laid on the epoxy inside and out much thicker while smoothing it into round curves. The idea is to provide additional thickness strength and additional surface area to which the epoxy can grab onto.</p>
<p>Your suggestion has me thinking I could smooth additional epoxy from the side, over the crack and onto the top of the cap to provide similar support as you show in the photos. I kind of started this concept, but it might not hurt to carry it further and then just sand it to a pleasing shape. The paint will hide the additional thickness. I really don't want to be doing this again! Thanks for the input.</p>
<p>I think ultimately on the first go 'round I was just too dainty with the epoxy to save myself some sanding and shaping efforts. </p> Wow, that restoration looks g…tag:oozinggoo.ning.com,2014-01-23:1566398:Comment:5090472014-01-23T19:00:46.130ZJushttps://oozinggoo.ning.com/profile/Jus
<p>Wow, that restoration looks great! </p>
<p>The times I've used epoxy to heal cracks, I've had the best luck when I'm able to completely encircle the damaged item with a layer of epoxy. I don't know if an outside layer on your cap is feasible, but perhaps an inside encircling layer would help! Maybe if you repeated again the fix you've discussed here, then immediately coated the inside with a layer of epoxy, that might help! I'm no physicist 4 shore, but perhaps another issue causing…</p>
<p>Wow, that restoration looks great! </p>
<p>The times I've used epoxy to heal cracks, I've had the best luck when I'm able to completely encircle the damaged item with a layer of epoxy. I don't know if an outside layer on your cap is feasible, but perhaps an inside encircling layer would help! Maybe if you repeated again the fix you've discussed here, then immediately coated the inside with a layer of epoxy, that might help! I'm no physicist 4 shore, but perhaps another issue causing problems is heating/cooling & it's affect on the cap's material...maybe U could figure out a way to fix it at one temperature so that when it went the other temperature direction, it would compress rather than force apart the crack...jus thoughts in my head....Good luck! </p>
<p>DISCLAIMER: All my repair attempts have involved an outer layer of epoxy; I have no idea if a sub-surface epoxy layer would help at all or even be advisable. In fact, I've no idea whatsoever what the inside of your cap even looks like! Oh dear... LOL</p>
<p>I<a href="http://storage.ning.com/topology/rest/1.0/file/get/3127041780?profile=original" target="_self"><img width="300" src="http://storage.ning.com/topology/rest/1.0/file/get/3127041780?profile=RESIZE_320x320" width="300" class="align-right"/></a>n case I'm not making myself clear, these pics might help...</p>
<p>These photos show a ring of epoxy which has given my .99 cent mini-tripod AT LEAST nine more lives, and counting...</p>
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/3127043330?profile=original" target="_self"><img width="400" src="http://storage.ning.com/topology/rest/1.0/file/get/3127043330?profile=RESIZE_480x480" width="400" class="align-full"/></a></p> Grumble grumble grumble! Cap…tag:oozinggoo.ning.com,2014-01-23:1566398:Comment:5088842014-01-23T13:22:03.085ZRich Chttps://oozinggoo.ning.com/profile/RichCummings
<p>Grumble grumble grumble! Cap split again. Contrary to my earlier statement I apparently tightened it down too much and combined that with the heat and a small gluing surface, it decided to split again. I cleaned it all up and moved up to a much stronger epoxy that can withstand 550 degrees F of heat. I built up the epoxy in the high stress areas and plan to sand it smooth on the outside but to also leave a thicker layer of epoxy over the cracked area. Should be painted and back in place…</p>
<p>Grumble grumble grumble! Cap split again. Contrary to my earlier statement I apparently tightened it down too much and combined that with the heat and a small gluing surface, it decided to split again. I cleaned it all up and moved up to a much stronger epoxy that can withstand 550 degrees F of heat. I built up the epoxy in the high stress areas and plan to sand it smooth on the outside but to also leave a thicker layer of epoxy over the cracked area. Should be painted and back in place by the weekend. This time, it will only be snugged down, not super tight!</p> Nice job, a real labour of lo…tag:oozinggoo.ning.com,2014-01-20:1566398:Comment:5085462014-01-20T23:50:27.894ZTim Gillhttps://oozinggoo.ning.com/profile/TimGill
Nice job, a real labour of love for a cap - looks better then before the crack
Nice job, a real labour of love for a cap - looks better then before the crack Nice job, and thanks for post…tag:oozinggoo.ning.com,2014-01-20:1566398:Comment:5082812014-01-20T09:55:19.803ZKirkhttps://oozinggoo.ning.com/profile/KirkOlson
<p>Nice job, and thanks for posting!</p>
<p>Nice job, and thanks for posting!</p> That is the most impressive c…tag:oozinggoo.ning.com,2014-01-20:1566398:Comment:5082772014-01-20T04:28:54.128ZErinhttps://oozinggoo.ning.com/profile/erin9
<p>That is the most impressive cap restoration I've ever seen. Amazing job! </p>
<p>That is the most impressive cap restoration I've ever seen. Amazing job! </p> Impressive.tag:oozinggoo.ning.com,2014-01-20:1566398:Comment:5084232014-01-20T03:44:51.158ZAlfredhttps://oozinggoo.ning.com/profile/Alfred
<p>Impressive.</p>
<p>Impressive.</p>