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Non-destructive Mould Making - lacquered wood object
Non-destructive Mould Making - lacquered wood object
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Non-destructive Mould Making - lacquered wood object
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LaxFriedrichs
LaxFriedrichs
posted 12 Years Ago
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Hello all,
I need to make a two part mould of an object made of wood that's surface is lacquered, but I'm very keen not to damage the object.
Could you recommend the best suited molding method for this? The piece no larger that 600mm x 400mm x 150mm. The mold should be reusable also.
Many thanks,
Adam
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carboncactus
carboncactus
posted 12 Years Ago
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This week I will be finished with my wooden part project. I will post loads of pics. It will be a prepreg pull.
But to answer your question, just use wax, or a semi perm and Unimould. Technically, you are releasing off lacquer, not wood. Whatever material is under the lacquer doesn't matter.
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12 Years Ago by
carboncactus
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LaxFriedrichs
LaxFriedrichs
posted 12 Years Ago
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carboncactus (12/06/2013)
This week I will be finished with my wooden part project. I will post loads of pics. It will be a prepreg pull.
But to answer your question, just use wax, or a semi perm and Unimould. Technically, you are releasing off lacquer, not wood. Whatever material is under the lacquer doesn't matter.
Thanks again. I'm considering Unimold atm, due to the size ( aprox
600mm x 400mm x 150mm). 'Semi Perm'
is a semi-permenant release agent, yes?
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12 Years Ago by
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carboncactus
carboncactus
posted 12 Years Ago
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Yep, semi permanent release agent. Solvent based semi permanent sealer and release agent if you wanted to be more exact lol.
Just buy the £80 Unimould kit, some release, acetone, filleting wax, and something to make flanges with if they are needed.
Don't want to be negative, but if this is your first mould, you WILL fook it up. The small kit should give you 2 shots at it. Make sure you follow the data sheets TO THE DOT. Weigh all your resins, heat the room up, make sure there is no air in the laminate, and make sure you work fast with the reinforcement resin. Too slow and 2 things can happen. It could gel before all layers are down and therefore it wont exotherm, or it will exotherm before you are finished consolidating it.
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LaxFriedrichs
LaxFriedrichs
posted 12 Years Ago
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Yes, it's my first mould. My hope is to prove you wrong by following the instructions precisely, but the likely outcome is probably as you say. Prep, prep and more prep is in order so I don't 'faff' around too much.
Once again your input is appreciated mate.
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carboncactus
carboncactus
posted 12 Years Ago
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Is your mould going to be subject to heat? i.e. postcured, used for prepreg?
If not, you might have a completely useable mould first time. There could be air behind the gel coat, but you dont know about it until the mould is heated and the air expands, creating blisters on the surface. And if the mould is not going to be in an oven at any time, it will be fine
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LaxFriedrichs
LaxFriedrichs
posted 12 Years Ago
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There will be no heat in the process. I will be doing resin infusion.
Will tell you how I get on...
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Matthieu Libeert
Matthieu Libeert
posted 12 Years Ago
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One extra remark, make sure your wood is sealed, the exotherm reaction, creating heat, could make evaporate some water in the wood, causing some reactions on the mouldsurface.
seen it online once, also wood whill could absorb resin and expand... don't want to scare you but those are some things that could happen, I might as well be wrong
Matthieu Libeert
Founder MAT2 Composites X Sports
website:
www.mat2composites.com
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Non-destructive Mould Making - lacquered wood object
LaxFriedrichs
-
12 Years Ago
I have asked this question also, However my part wasn't lacquered. If the lacquer has not only...
carboncactus
-
12 Years Ago
CC, your reply is much appreciated.
LaxFriedrichs
-
12 Years Ago
Are you looking on how to make a 2-part mould, or how to make a mould from a wooden part?
matthieutje65
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12 Years Ago
Matthieu, I was just wondering if there was a optimal method of mould making that would be best...
LaxFriedrichs
-
12 Years Ago
This week I will be finished with my wooden part project. I will post loads of pics. It will be a...
carboncactus
-
12 Years Ago
[quote][b]carboncactus (12/06/2013)[/b][hr]This week I will be finished with my wooden part project....
LaxFriedrichs
-
12 Years Ago
Yep, semi permanent release agent. Solvent based semi permanent sealer and release agent if you...
carboncactus
-
12 Years Ago
Yes, it's my first mould. My hope is to prove you wrong by following the instructions precisely, but...
LaxFriedrichs
-
12 Years Ago
Is your mould going to be subject to heat? i.e. postcured, used for prepreg? If not, you might have...
carboncactus
-
12 Years Ago
There will be no heat in the process. I will be doing resin infusion. Will tell you how I get...
LaxFriedrichs
-
12 Years Ago
One extra remark, make sure your wood is sealed, the exotherm reaction, creating heat, could make...
matthieutje65
-
12 Years Ago
Here ya go mate, hope it helps: http://www.talkcomposites.com/Topic6678.aspx?Update=1 This:...
carboncactus
-
12 Years Ago
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