[bavnuts88]

Environmental Technology Inc.

Anybody using this mold stuff? Im just not sure if it will hold up to the heat.

Daniel

[Zbass]

bavnuts88,
I tried that stuff a few years ago to make a mold and it left a lot to be desired. I got a small container of it and tried to brush on the first coats to make sure I had no bubbles. It took almost 6 coats before I had the model coated. Then tried to pour it over the model to make the mold and ended up with a nice pile of latex goo. I probably did something wrong but that was enough for me.
Zbass

[Kajan]

Purdy much like Zbass said. I do use it, used some the other day. I make my master lures out of wood or HDPE and use it to make cheap test molds to make sure the lure does what I want it to before using RTV. Make sure you let each coat dry entirly before recoating. Then you can pour some POP over it and have a temp mold. But not good for more than that.

[bavnuts88]

Thanks a lot guys. Glad I didnt go buy some

[Vodkaman]

I have used it before. It is useless as a normal solid type mold, it would take years to go off.

It is used to make what I would call 'skin molds'. You paint on about 20 very thin coats, letting each one dry thoroughly before adding the next. When done, the mold is pealed off the master and is ready for casting. A thickening agent can be added after the first couple of coats, this will reduce the total coats required. Hairbrush drying helps too.

It is generally used for casting resin or similar. Being latex rubber,I doubt it would take the heat of plastic. I made a mold of my thumb, as a novelty keyring. I received lots of comments from it. I then molded an old thumb drive into it, for fun.

It produces very fine detail well, including finger prints etc. Casting, it has a very limited life, I only managed to cast half a dozen, before significant loss of detail. Also, being rubber AND using resin, there was a large shrinkage problem.

For casting lures (hardbaits) it is not very practical, as the skin has to stretch over the casting to remove, therefore the pour hole (sprue) has to be large enough to allow this. Works well for open bottom items, like chess pieces, figurines, small garden gnomes, etc.

Hope this helps.

Dave

[bavnuts88]

Which RTV would you guys recommend? Everytime I search on here it just freezes or takes all day to load. Ill be using it for plastics

Thanks