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I'm making a mold of a helmet but don't want to lose the original "master". I had originally decided to use plaster but am now going to use RTV silicone as it is more flexible and more friendly with undercuts.

I see that T-Bone used Silicone to make his mold for his son's bucket, but need to know if making a two part mold would be better than a simple one part.

My other query is that if I do go ahead with a two part mold what is the best release agent for RTV silicone to prevent the two halves permanently sticking during the curing process?

Any help you folks can offer would be great.

Cheers

[QUOTE="mandalore697, post: 70888, member: 594"] I'm making a mold of a helmet but don't want to lose the original "master". I had originally decided to use plaster but am now going to use RTV silicone as it is more flexible and more friendly with undercuts. I see that T-Bone used Silicone to make his mold for his son's bucket, but need to know if making a two part mold would be better than a simple one part. My other query is that if I do go ahead with a two part mold what is the best release agent for RTV silicone to prevent the two halves permanently sticking during the curing process? Any help you folks can offer would be great. Cheers [/QUOTE]

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