ncfowler Posted December 2, 2015 Report Share Posted December 2, 2015 So, here is the deal, I got asked to make soap molds, let me explain this is the bulk mold roughly 24" high, 24" deep and 18" wide, yea your did read it right, it needs to be take apart and reassemble easily, plans call for dado's joints, the mold is made of 3/4 good one side ply, and held together by threaded rod, I want to reinforce the back of the mold with some wood strips, using glue and screws, I was told by the person that makes the soap the curing process will reach around 150-200 deg, what glue would you all suggest that will hold up to that heat, He wants and paying for 2 samples, with the potential orders of 200 a year, I don't know if I want it or not, but hell let's give a try, most likely I will farm out the cutting to a panel shop, Quote Link to comment Share on other sites More sharing options...
xxdabroxx Posted December 2, 2015 Report Share Posted December 2, 2015 I've made soap before, I don't think you will have a bad time with the heat although a batch that big may generate more heat that the small batches I have done. You could always use silicone, it's very high temp friendly. I sealed the wood on my molds with a diluted silicone mixture, it wasn't perfect but it was good practice. Next time I would work on diluting the mold better. Is there a reason they don't re-use the molds? 1 Quote Link to comment Share on other sites More sharing options...
ncfowler Posted December 2, 2015 Author Report Share Posted December 2, 2015 the molds are new ones, added to the ones they have, they do re-use them, their product line and sales are getting so large they are needing to expand, they produce over 5000 bars of Shay butter soap a week, just to fill their existing orders, I kinda of got sucker into making prototypes for them. Quote Link to comment Share on other sites More sharing options...
ColinF Posted December 2, 2015 Report Share Posted December 2, 2015 http://www.frets.com/FretsPages/Luthier/Data/Materials/GlueTest/gluetest.htmli found that about general wood glues, I wonder if a high quality epoxy is going to be what you need? 2 Quote Link to comment Share on other sites More sharing options...
wwWolanski Posted December 2, 2015 Report Share Posted December 2, 2015 Try high temp caulking made for wood stoves. You should be able to find it at any reputable hardware store. I believe it is rated to 400 degrees. 1 Quote Link to comment Share on other sites More sharing options...
ncfowler Posted December 2, 2015 Author Report Share Posted December 2, 2015 Thanks for the posts, Quote Link to comment Share on other sites More sharing options...
ponderingturtle Posted December 2, 2015 Report Share Posted December 2, 2015 West systems does testing that might be usefulhttp://www.westsystem.com/ss/if-you-can-t-take-the-heat/ Quote Link to comment Share on other sites More sharing options...
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