plastic for a bait mold

[link22eragon]

So i was just wondering. people make their own molds out of silicone alot, but if you were to make a two piece injection mold i thought it would be easier to use plastic instead. it would probably hold up better without the bend like silicone. does anyone know if this would work? i dont want to waste my money buying liquid plastic if it wont. i already have a plan on how to do it so i just want to know if the plastic would work.

[biglewers]

I wouldn't use plastic.  I would use RTV it will hold up longer.

[Botanophilia]

Plastic may not hold up to the heat very well for one thing.  For another, not all plastics are compatible with plastisol baits.  I think we've all experienced putting baits on a piece of plastic and having it melt from a reaction between the 2 plastics. 

[link22eragon]

thanks. ill try silicone first then eventually plastic anyways to see how it works.

[biglewers]

Make sure what ever plastic you use, uses the same resin that is in your baits.  If not, just like what was said above, it will get eaten through.

[ctom]

I'm with big on the rtv suggestion.

[Smallie]

Plaster of Paris or Durham's water putty can be used for two piece molds. Just put a marble in each corner of the first half, paint the surface with vaseline and then pour the second half on.