bassboy77 Posted August 18, 2003 Report Share Posted August 18, 2003 could some one please give me some detailed instructions on how to do this becuz im really confused.thanx Quote Link to comment Share on other sites More sharing options...
woodsac Posted August 18, 2003 Report Share Posted August 18, 2003 Are you wanting to make your molds out of bondo, or "Bondo" fiberglass resin? Quote Link to comment Share on other sites More sharing options...
Big Splash Posted August 18, 2003 Report Share Posted August 18, 2003 I'm interested in knowing about bondo, to cast lead in. Quote Link to comment Share on other sites More sharing options...
bassboy77 Posted August 18, 2003 Author Report Share Posted August 18, 2003 the fiberglass Quote Link to comment Share on other sites More sharing options...
woodsac Posted August 18, 2003 Report Share Posted August 18, 2003 The fiberglass resin is a 2 part mix. Make sure that when you buy the resin it comes with the catalyst (hardner) or buy it seperate. Make sure you wash the baits that you are going to mold with warm soapy water and rinse thoroughly. Pat or let air dry until no moisture is left on the bait. If you are molding a clay or wooden prototype, spray with a release agent before pouring resin. A light coat of vaseline or some Pam cooking spray works good. If you are planning on making a prototype mold, I recommend trying this process on something that you can replace first. Inside of a small baking dish (glass or metal) glue baits to the bottom. I use superglue to make sure they don't move when I pour the resin. You can find these type of containers cheap at a dollar store or goodwill. When the glue is dry, use a measuring cup and add enough water to cover the baits with about 1/4" to 1/2" of excess over the baits. This is the amount (in ounces) of resin you will need. Empty the container, and again thoroughly dry it. When mixing the resin, the amount of catalyst you use depends on the room temperature. CAUTION!!! DO NOT MIX INSIDE THE HOUSE!! VERY STRONG FUMES! THE RESIN IS HEAT ACTIVATED AND MAY CAUSE DAMAGE TO PLASTIC CONTAINERS OR SURFACES!!! If the temp is below 70* I do not recommend mixing. Temp between 70* and 75* 10-12 drops per ounce of resin, 75*-80* 8-10 drops and above 80* 8 drops per ounce of resin. If you add too much catalyst, the resin will cure too quickly and cause stress cracks and breakage. Mix slowly!!!!!! The faster you mix, the more air bubbles it will create. I stir each mixture for approximately 1 1/2 to 2 minutes. Make sure if you are mixing more than 20 oz of resin at one time, the container is large enough to let it mix well. I mix my resin in plastic paint measuring cups. They are cheap and allow you enough time to mix before the resin begins to cure. SLOWLY pour the resin over your baits. VERY SLOWLY!!!! Let the mold sit undisturbed until it is cool to the touch. Turn the container over and tap out the mold. (This might take a few trys) Now just clean up the cavities if you have any excess plastic left over in them. Spray the mold with some type of release agent before you begin to pour. I use garlic Pam. It adds a touch of garlic scent and allows your baits to be easlily removed from the cavity. Now just pour your melted plastic and it should be ready to demold within 2 minutes (depending on the thickness of the cavity). If you would like, I can post a pic of some finished molds for you to see before you buy the materials. [/b] Quote Link to comment Share on other sites More sharing options...
SeminoleFan Posted August 18, 2003 Report Share Posted August 18, 2003 I would love to see some pic's. And this is a great tutorial ! Rick SeminoleFan Quote Link to comment Share on other sites More sharing options...
redg8r Posted August 18, 2003 Report Share Posted August 18, 2003 Heres a couple of mine, Note, the lizard mold is NOT chirmy's lizard, its very similar, so I just wanted to mention that. Quote Link to comment Share on other sites More sharing options...
Mercury Posted August 18, 2003 Report Share Posted August 18, 2003 Speaking of lizards. I picked up a few from the dollar store in the toy department. They look like they will be able to make nice casts from them. Let you know what happens. Quote Link to comment Share on other sites More sharing options...
woodsac Posted August 19, 2003 Report Share Posted August 19, 2003 These aren't the best pics. I'm just being lazy. Those pics were worse than I thought. :oops: I'll take a couple more later. Sorry Quote Link to comment Share on other sites More sharing options...
woodsac Posted August 19, 2003 Report Share Posted August 19, 2003 Here ya go. Quote Link to comment Share on other sites More sharing options...
BassnG3 Posted August 22, 2003 Report Share Posted August 22, 2003 How many pours can you get out of a fiberglass mold? Woodsac what brand did you use? Your molds look great! BassnG3 Quote Link to comment Share on other sites More sharing options...
woodsac Posted August 22, 2003 Report Share Posted August 22, 2003 Lately I've only been using 'Bondo' brand resin. That's because I can get it cheap at Wal-Mart. I have poured a few hundred crawdads and I haven't had any problems yet. Quote Link to comment Share on other sites More sharing options...
chirmy Posted August 22, 2003 Report Share Posted August 22, 2003 Nice molds guy's That raound mold Woodsac has with the lizard seems to be the same resin I use. I actually pour lead into these to make my "dummies" to recast my other molds. I have had only 1 crack from the lead heat. other than that no more fussing with the plastics floating etc. here is my inhaler mold and tonight I will take a picture of all my lead inhalers that Ipoured in this mold. Quote Link to comment Share on other sites More sharing options...
chirmy Posted August 26, 2003 Report Share Posted August 26, 2003 Here are the inhalers Ipoured in lead to make molding easier. Quote Link to comment Share on other sites More sharing options...
Shmang Posted August 27, 2003 Report Share Posted August 27, 2003 OUTSTANDING molds guys. Very impressive indeed Quote Link to comment Share on other sites More sharing options...
BassnG3 Posted September 1, 2003 Report Share Posted September 1, 2003 Woodsac I followed your tutorial to a "T" and made a mold of my favorite 4" worm and it turned out pretty good. The whole process was pretty easy and I can't wait to do some more !! Thanks for posting the instructions! BassnG3 Quote Link to comment Share on other sites More sharing options...
Pop Posted September 1, 2003 Report Share Posted September 1, 2003 This is not the first time, but I can't seem to locate the pictures everyone else is looking at. What am I doing wrongt ? Pop Quote Link to comment Share on other sites More sharing options...
Mercury Posted September 1, 2003 Report Share Posted September 1, 2003 Have to log in to see the pics. If you dont log in, No see pretty colors..... Dont worry we have all done it. Or your firewall/settings may not allow it. But try to log in first, then try the others later. Quote Link to comment Share on other sites More sharing options...
Pop Posted September 1, 2003 Report Share Posted September 1, 2003 Thanks, "logging in" did the deed. Can I conclude that the fiberglass resin is better than plaster? Can someone list the material of preference for molds? I know a Del Mart aluminum mold would be the best, but; I am talking about what most of us could use to make a single cavity mold, ie RTV, Fiberglass, Plaster etc. Thanks, Pop Quote Link to comment Share on other sites More sharing options...
Coley Posted September 1, 2003 Report Share Posted September 1, 2003 When you are talking about bondo are you talking about the pink stuff used to repair dents in automobiles?????? Coley Quote Link to comment Share on other sites More sharing options...
Big Splash Posted September 2, 2003 Report Share Posted September 2, 2003 No Coley, This one's about fiberglass resin-available in Bondo brand package. I'm new to mold building, but as for personal preferences to materials- I'm having excellent results from my plaster molds. Coated with the bar top epoxy, the molds turn out super smooth, shiney baits, without using a mold release. You can build custom baits from simple plasticine and make the mold from it. The plaster is inexpensive and safe to work with. You can see an example of one of my molds in another thread. Quote Link to comment Share on other sites More sharing options...
woodsac Posted September 2, 2003 Report Share Posted September 2, 2003 BassnG3, glad that I could help! It sounds like you've got it down, but if you have any other questions, just ask. Quote Link to comment Share on other sites More sharing options...
BassnG3 Posted September 2, 2003 Report Share Posted September 2, 2003 I used the stuff that is used to repair dents. It starts out as a grey paste then the hardener is in a tube and depending on how much harderner you use it may turn it pink. I don't know if this is what Woodsac is talking about but it worked for me! I used some old worms to test it out and now all I am waiting on are some coloring from LC to come in. BassnG3 Quote Link to comment Share on other sites More sharing options...
Mercury Posted September 2, 2003 Report Share Posted September 2, 2003 Woodsac is talking about the fiberglass resin used with fiberglass mat. The resin is thinner and will form to the object being molded without having to work it onto the molded object. Quote Link to comment Share on other sites More sharing options...
woodsac Posted September 2, 2003 Report Share Posted September 2, 2003 Mercury is right. The stuff I'm talking about is a liquid. Depending on the brand, it's been clear, brown or a redish tint. You just mix it up, pour it over whatever you are molding and wait about 2 hours. If the paste works, that's a good thing. Maybe we can find some other applications for it as well. Quote Link to comment Share on other sites More sharing options...
