mphenry1 Posted March 8, 2007 Report Share Posted March 8, 2007 Looking for some tips on how to seperate 2 part mold made from POP. I used a flathead screw driver and broke the first 2 molds I tried. I thought about putting cooking oil or worm oil on the first half before I pour the second on top. I put aluminum foil on 2 corners but it still broke. Thanks for any advice. Quote Link to comment Share on other sites More sharing options...
bigyen Posted March 9, 2007 Report Share Posted March 9, 2007 Make sure you allow your POP to completly dry before you try to separte them and make sure the two halfs are at least 1/2" - 1" thick. Try WD40 as a parting agent. You might try the razor blade from a box cutter, I put it on the parting line of the two halfs and tap it with a hammer. The two halfs just fall apart. There's a very good tutorial on making a POP mold out of a real crawfish, do a search and check it out you should find everything you need there. Bigyen Quote Link to comment Share on other sites More sharing options...
MDC Posted March 9, 2007 Report Share Posted March 9, 2007 Use Vaseline on the first half Quote Link to comment Share on other sites More sharing options...
mjmmusser Posted March 9, 2007 Report Share Posted March 9, 2007 Use Vaseline on the first half I second that. They just fall apart when you try to seperate them. Quote Link to comment Share on other sites More sharing options...
Senkosam Posted March 9, 2007 Report Share Posted March 9, 2007 Vaseline works! Put al foil along two of the longest sides and tuck into the right angle with the container and up the side of the container. The foil that lays on the surface of the first part has to be greased also. If you haven't done so, use a thin flat head with shallow inserts at the foil's line with the first pour, working it by pushing it around the mold's dividing edge once or twice all the way around and in different spots. One twist will tell you when the parts will separate and that you should keep going around with more twists using a larger head or butter knife. Gentle is key. I can usually separate a 2-part in one hour after the second part dries. 2 hours is safer. I'm talking 5/8" or thicker per part. Too thin and you risk cracking. I coat both sides immediately. Quote Link to comment Share on other sites More sharing options...
tad Posted March 11, 2007 Report Share Posted March 11, 2007 That's another reason I like making a 3/4" thick wood frame for my pop molds. It's a simple matter of inserting a butter knife or flat tip screwdriver between the two wood frames and seperating the two halves without damaging the edges of the mold itself. Quote Link to comment Share on other sites More sharing options...
Fish_N_Fool Posted March 12, 2007 Report Share Posted March 12, 2007 Hey Tad do you leave the wood frame on permanently? If you do does it help protect the molds from braking? It would seem like it would. Quote Link to comment Share on other sites More sharing options...
Gloomisman Posted March 12, 2007 Report Share Posted March 12, 2007 the wood frame is the way to go. All the molds come out square and perfect. I take it out the pop 1st have and clean the edges and around the bait knocking off excess once its pretty hard. Allowing the 1st have to dry completly then I put it back into the mold. Spray with pam pour the top half and let it harden. The only time I have had a problem is when I didnt let the pop harded all the way and my thumb ripped a ton of pop off the top when I tried to pull them apart. Since then most of them dont even require a knife just pull apart. Quote Link to comment Share on other sites More sharing options...
tad Posted March 12, 2007 Report Share Posted March 12, 2007 Hey Tad do you leave the wood frame on permanently? If you do does it help protect the molds from braking? It would seem like it would. No I don't leave the frame on the molds. I think leaving the frames on would make them to bulky. I keep using the frames over and over providing they are the correct size for what i'm making. I've started using epoxy to glue 1/8" thick plexy glass to the molds that I want to protect. Quote Link to comment Share on other sites More sharing options...
nova Posted March 12, 2007 Report Share Posted March 12, 2007 I just had a thought. Why not coat the bottom and 4 sides with resin and fiberglass cloth. It sure would make it tough. www.novalures.com 1 Quote Link to comment Share on other sites More sharing options...
NiceBass Posted April 7, 2007 Report Share Posted April 7, 2007 Yeah, the first try I made on my 2-part, it broke the top half when I tried seperating them, second try I put alot of vaseline on the 1st part with the aluminum, and i just stuck in a screwdriver and they pryed apart. Quote Link to comment Share on other sites More sharing options...
ominousone Posted April 7, 2007 Report Share Posted April 7, 2007 Have any of you ever tried using water putty? I saw a tutorial on how to use it for making jigs or spinnerbaits, and adapted it for a two piece soft plastic mold. I used cooking spray on the first half and it came right apart real easy. Also in the paint department of my home depot the water putty was marked down from 8 dollars to 1.50. Hope this helps. Quote Link to comment Share on other sites More sharing options...
bubbah rubbah Posted April 7, 2007 Report Share Posted April 7, 2007 motor oil and crisco works as a good release as well Quote Link to comment Share on other sites More sharing options...
