Re: I want to mold an object

Depending on how accurate "accurate" has to be and what material you are using for the prototypes, Latex (sold as molding compound at places like Hobby Lobby and some hardware stores) will make accurate soft low temperature molds in which you can make copies with plaster, casting wax or, perhaps the best, casting resin which is also sold at the same places. From places like MCS

formatting link
you can get casting metals that melt below the boiling point of water and can be cast in the latex, but cost a small fortune. You can use the wax copies to make lost wax molds in plaster or investment for casting in lead, zinc, or aluminum at more or less reasonable temps and glass and brass at higher temps. RTV is a casting rubber developed by GE that is available in liquid (and paste but you don't want that) that will stand temps to molten lead for several castings and perhaps molten zinc at higher temps.

Reply to
Mike Firth
Loading thread data ...

Latex is really not the optimal material to use and will not hold up all that well. It is rarely used anymore as there are many other products that are easier to use and will hold up over the long haul. I would recommend you go to

formatting link
or
formatting link
Those twocompanies have a host of "rubber" products that you can research. They alsohave downloadable information that can be very helpful in understanding howto use their products.> Depending on how accurate "accurate" has to be and what material you are> using for the prototypes,> Latex (sold as molding compound at places like Hobby Lobby and some> hardware stores) will make accurate> soft low temperature molds in which you can make copies with plaster,> casting wax or, perhaps the best, casting resin which is also sold at the> same places. From places like MCS
formatting link
you can get> casting metals that melt below the boiling point of water and can be cast in> the latex, but cost a small fortune.> You can use the wax copies to make lost wax molds in plaster or> investment for casting in lead, zinc, or aluminum at more or less reasonable> temps and glass and brass at higher temps.> RTV is a casting rubber developed by GE that is available in liquid (and> paste but you don't want that) that will stand temps to molten lead for> several castings and perhaps molten zinc at higher temps.>

Reply to
Henry Halem

InspirePoint website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.