Making a silicone bladder


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chriscnf
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Hi guys I've decided that I need to move from Qualatex balloons to a silicone bladder.
I've got Smooth On rebound coming just because there isn't much available in NZ at the moment.
Its a three part mold and I've built fiber glass shells to go in the mold parts to correctly size the bladder.

I will mess around with some trials but I'm was a little bit confused about the right time to do second coats and joins last time I did this.
I was using dragon skin then and it seemed to go from runny to tack free without a good tack period to second coats and a complex join.

One thing I did learn last time is that acetic cure tube silicone sticks like s*** to a blanket with smooth on silicone for fixing seam flaws.
The idea is to make a thin patch with the smooth on silicone and then glue it on with the cheap tube silicone.

Any pointers would be massively appreciated...Chris
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chriscnf
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Hanaldo - 1/28/2021 8:46:30 PM
I always found pulling a vacuum on the air fitting made pretty short work of removing the bladder afterwards.

Pictures?

I will get some shots up. The bladder is coming out easily but I want to preserve its life. I pour epoxy into silicone molds and just had my first failure as the silicone changed color and lost some of its self release. Spay on release is just another cost in the process but I may have to go that way.
I massively appreciate your input to this forum...Chris

GO

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