Mold Material For CFRP Prepregs for oven curing max(120 degree C)


Mold Material For CFRP Prepregs for oven curing max(120 degree C)
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Gaurav Kumar Thakur
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Gaurav Kumar Thakur
posted 5 Years Ago HOT
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Hi, can we use  POP as mold material for CFRP prepreg component??
maximum temperature for curing-120 degree

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Gaurav Kumar Thakur
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Gaurav Kumar Thakur
posted 5 Years Ago HOT
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Posts: 9, Visits: 273
 
Hanaldo - 10/28/2020 11:02:16 AM
Plaster of paris? No. It is highly porous, so it would need to be sealed. You could maybe use plaster of paris and then wrap it in Teflon tape/glass, but it wouldn't leave a nice surface finish. Possibly an option for non-aesthetic parts, but not a great one. It doesn't have a fantastic CTE either, so probably a few issues there.

What if we will use some filler paste or putty to fill the small holes and paint it,or is there any other mold material which is cost effective and i am looking for one time use only.?
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Mold Material For CFRP Prepregs for oven curing max(120 degree C)
Gaurav Kumar Thakur - 5 Years Ago
     Plaster of paris? No. It is highly porous, so it would need to be sealed. You could maybe use plaster of paris and then wrap it in Teflon tape/glass, but it wouldn't leave a nice surface finish....
Hanaldo - 5 Years Ago
             What if we will use some filler paste or putty to fill the small holes and paint it,or is there any other mold material which is cost effective and i am looking for one time use only.?
Gaurav Kumar Thakur - 5 Years Ago
     HI I did use plaster of Paris in 2012 to create a prototype like other do with modelling clay and found plaster easier to sculpture once completely dry I coated it with wood hardener/cellulouse to...
torstenker - 5 Years Ago
     Yes for general pattern work for use at ambient temperature, use anything you like, at the end of the day its about having a hard shiny surface and doesn't matter too much what is underneath it....
Hanaldo - 5 Years Ago
             Thanks for the suggestion...i will go with the effective one ...but which material Aluminium or some other material are there for high temperature ???
Gaurav Kumar Thakur - 5 Years Ago
     in addition to what hanaldo said, You can do a plaster mould and finish the surface at is finest but I doubt it would survive more the 1, max 2 remoulding of cured epoxy and pull parts off the mould...
torstenker - 5 Years Ago
     A composite mould is probably going to be the cheapest. Vinyl ester or epoxy, whatever system you can get that can handle 120° cure cycles. Alternatively, epoxy tooling board or aluminium can be...
Hanaldo - 5 Years Ago
             Hanaldo, please, tell something about your experience and skilful of epoxy tooling board making to top mirror finish. I just testing that proposal, I have a several brands of sealers (Marbocote,...
Rosta Spicl - 5 Years Ago
     Yeh no, my experience is very much in line with yours. Tool sealers do a good job, but I haven't ever managed to get anything close to the surface finish I can get with traditional mould making. For....
Hanaldo - 5 Years Ago

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