lanoline Posted September 22, 2012 Report Share Posted September 22, 2012 (edited) Newbie using POP molds... What causes these bubbles, then I get a good one.. .Same melted bowl??? THANKS!! Edited September 22, 2012 by lanoline Quote Link to comment Share on other sites More sharing options...
carolinamike Posted September 22, 2012 Report Share Posted September 22, 2012 What type of mold were you using? POP, silicone or aluminum or something else? I've seen bubbles like that from a POP mold when it wasn't sealed well. The only other time I've seen bubbles like that is maybe if there was a drop of water in the mold. Quote Link to comment Share on other sites More sharing options...
mark poulson Posted September 22, 2012 Report Share Posted September 22, 2012 I have one POP mold that makes bubbles in the same place unless I fill it really slowly. There is a detail on the belly with some sharp edges that seems to cause the bubbles. Filling it slowly eliminates the bubbles. Quote Link to comment Share on other sites More sharing options...
The Dutchman Posted September 22, 2012 Report Share Posted September 22, 2012 I, too, have had that problem with POP molds. The mold is not sealed properly. go to the place where the bubbles occur and reseal. Quote Link to comment Share on other sites More sharing options...
carolinamike Posted September 22, 2012 Report Share Posted September 22, 2012 A good heavy duty floor wax makes a great permanent sealer for POP molds. The kind you use with a high speed buffer is the best. It might take as many as 8-10 thin coats, but the baits demold great and have a real good shiny finish. Quote Link to comment Share on other sites More sharing options...
lanoline Posted September 22, 2012 Author Report Share Posted September 22, 2012 Thanks! Ive never sealed the POP molds... bingo!! Quote Link to comment Share on other sites More sharing options...
finesse1331 Posted September 24, 2012 Report Share Posted September 24, 2012 You gotta seal a POP mold,I either use Devcon 2Ton epoxy or Elmers glue mixed with some water. Quote Link to comment Share on other sites More sharing options...
Coffinshaker Posted November 28, 2012 Report Share Posted November 28, 2012 Might be a stupid question but how do you seal your molds? Im a beginner and my first pour was with alot of bubbles :-\ Quote Link to comment Share on other sites More sharing options...
finesse1331 Posted November 28, 2012 Report Share Posted November 28, 2012 The easiest way I've found to seal a POP mold is to mix some Elmers glue with water. I like to make it to a some what thick but runny liquid almost like syrup. Once you have your glue and water mixed you can then either brush it on the mold and let it sit for a minute then remove the extra that is sitting in the cavaties, or you can pour a little bit in the cavaty and swish it around. You gotta make sure that your mold is completely dry though before you seal it. I usually put mine in a oven on really low heat for about 30 minutes and check it. Another way is using Devcon 2 ton epoxy, make sure its the 30 minute kind,that will give you more time to work with it before it starts to cure and harden up. You can thin the epoxy with denatured alcohol. I only use epoxy on molds that don't have a lot of detail,some times the epoxy can ruin really fine detail. Good luck, I would do some searches on here with the search engine,alot of good answers on here by great people. Quote Link to comment Share on other sites More sharing options...
Coffinshaker Posted November 29, 2012 Report Share Posted November 29, 2012 thanks alot just ordered some Elmers Glue All. Hopefully this will get rid of the bubbles. Quote Link to comment Share on other sites More sharing options...
finesse1331 Posted November 30, 2012 Report Share Posted November 30, 2012 Not a problem, glad i could help. Good luck Quote Link to comment Share on other sites More sharing options...
