Do I need to use mold release if I cast this in a silicone mold? Suggestions as to which release to use?
78533
I have yet to use mold release with my silicone molds but I've not done anything too big or too detailed. If I was doing something with a lot of tiny intricate details I would hit it with some mold release as opposed to risking it not turning out. I hope that helps.
1735133
I'm going to guess probably. My molding is slightly damaged from use. I would imagine damage would be worse without any molding. I probably should have put a towel or something between the bar and the molding to prevent wear.
1909067
check out the silicone molds from freshware, they have a 1/2 sphere dome that is 1" (not sure if you're looking for smaller) I work with resin and love their molds (they come out nice and shiny), I don't think I'd bother trying with this, probably better luck just finding a cheap chocolate mold in the half dome and releasing by popping in a freezer after the resin cures.
1634609
Usually polymer clay doesn't need to stay in the mold while it's baked, right? It will probably keep its shape if you remove it from the mold before baking, unless it is difficult to take it out of the mold without squashing the shape, then it might be better to have a flexible mold.
595792
I can't be sure, but I've only had one time the stick came out by itself. You probably need to run warm or hot water over the mold more to loosen it. I always do that anyway, but sometimes it take more than what I normally do.
899961
No. Its really soft and doesn't stick to anything. You still might want to spray the castings with Crystal clear before applying the silicone
2067922
No, you only need to place it in the hot water during the initial molding/fitting. Once it cools, it will retain the shape you've formed.
1886180
Sort of, but i would use silicone putty instead (Alumilite). Alginate is great stuff, but it just helps create a negative mold, not the final positive product. Mix some up and put your hand in it. Alginate does not "dry"; it "gels", and sets up like hard jello. It is always somewhat moist, and needs to be kept wet. It is most useful for making casts from other water-based products, like plaster of Paris, or Permastone (a much harder cement). If you want to make fake teeth, you want to cast with some plastic material, and for that a silicone mold is much better.
419512
No you do not!!! The only thing is that you do not over fill it and I would add something to keep the sides from bowing! Great mold!
1610345
I prime everything w/ acrylic undercoat. I can't imagine ur casting such large items that u can't do it by hand.
1911855
I imagine if you overheated it but it is designed to not bond with anything but rather make a mold of the desired item. It is also reusable with is very nice when you need only one or two copies of something. Not as detailed as a silicone mold.
140119
I haven't used the generic molds because the sugar veil molds fold back and are easy to release the lace. When I use the oil spray on molds, the lace is the color of the spray. Generic molds require oil spay. I think it would be great to try one and see how it works. Then please let the rest of us know. I have had good results with the sugar veil molds. They are expensive.
1370653
Yes, it is very easy. Do just as the other users indicated. If for some reason you happen to have a problem (which virtually never happens), just leave the mold at room temperature for a few minutes or float the mold in warm water for about a minute (with both lids still on) and it will come right out.
1882299
I don't own one of these, but have owned silicone bakeware in the past, and have had mixed results with it. Silicone is a good insulator of heat, and so you'll likely need to increase the recipe temperature slightly (if it's still in the tolerable range of the material, which I believe is 450 for silicone bakeware, but don't quote me on that.) When you bake with it, like any silicone item, you'll want to place it on a cookie sheet, and use plenty of Baker's Joy or Pam with flour, or grease and flour, as this is NOT non stick by any means. Hope this helps!
2253304
Yes you do. It's pretty cheap. Just spray on and let dry before pouring resin in. If the mold release spray isn't used the dried resin won't come out and if forced can crack. Hope this helps!
174330
Not sure what you are asking. Whatever you used to make the mold in the first place IS the reverse mold. This product is designed pour resin into the mold to reproduce items multiple times if necessary.
1981036
It's made from all silicon so you'll need to use a tray when moving it to help stabilize, especially if you put liquid in the mold.