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Outlaw4

Prototype Lead Mold

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What is the easiest material to make a prototype lead mold? I am wanting to build a somewhat flat planing style buzzbait head that is heavy enough to run through reeds well, but also will plane and stay up somewhat easily. Their are a couple of produciton ones that do this ok but want to make a few mods for myself.

I was thinking of maybe making a master out of clay and molding with RTV? Is there an RTV that works decent with lead? Thinking maybe just an open pour type mold might work. 

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Buy some silicone that is made for mold making.

There are several out there that will handle molten lead temps.

Personally I wouldn't waste my time with ordinary RTV.

I've used it inside of lead molds for modifications but if I wanted a detailed master I'd go another route.

Check out YouTube for some videos on making silicone molds.

Some guys also use Durams water putty but it must be baked dry.

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Found some videos and looks like Smooth On Mold max 60 would work well but is a little tough to find and shipping from a few places that had it was as much as the product. It is kind of designed for tin / pewter hobbies by the looks of it

Alumalite has amazing mold putty which they actually have a video of pouring lead into so maybe that is the way to go for a simple mold, but would defiantly be limited to a top pour probably.

 

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15 hours ago, Outlaw4 said:

Found some videos and looks like Smooth On Mold max 60 would work well but is a little tough to find and shipping from a few places that had it was as much as the product. It is kind of designed for tin / pewter hobbies by the looks of it

Alumalite has amazing mold putty which they actually have a video of pouring lead into so maybe that is the way to go for a simple mold, but would defiantly be limited to a top pour probably.

 

I tried modeling clay and could not get it to work right. Years ago I carved a spinnerbait head out of wood, cleared it then made a 2 piece silicone mold. That mold I used to pour some Alumilite resin in because it would handle vulcanization. Never had a lead head made because I decided on something else. 

 

This winter I will be making a spinnerbait head from a small JDM crankbait as the base for the body. Busy trying to learn spincasting right now so I don't have time to mess with it.

 

Allen

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