Need some Vac-Form advice

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maxhebus

Well-Known Member

• Sep 14, 2017

• #1

Hi. I'm working on a 1/24 A wing (At least I think it's 1/24...) and I'm planning to work on the Vac form cockpit shield.
I'm pretty Ok for the buck shape but I've no idea what would be the best material to Vac form it with.
I'd love it to be 1mm thick (0.04 inch)
Any idea/advice?

Thanks

 

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mash3d

Active Member

• Sep 14, 2017

• #2

Not sure what size you need but you can find Plastruct clear sheets
https://plastruct.com/product-category/plain-and-patterned-sheet/clear-sheet/
or evergreen
https://evergreenscalemodels.com/collections/oriented-polystrene-clear-sheets

You may also be able to use a large clear plastic food container that food comes in.
The kind that salads come in at a food bar or something like that.

 

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maxhebus

Well-Known Member

• Sep 14, 2017

• #3

Thanks mash3d.
if anybody else has any other idea on what material would be best. Except Lexan.

Thanks

 

monker67

Well-Known Member

• Sep 14, 2017

• #4

PETG is a good clear plastic for vac forming.

 

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maxhebus

Well-Known Member

• Sep 15, 2017

• #5

I've heard that PETG can have some micro bubbles appearing when heated.... ?

monker67 said:

PETG is a good clear plastic for vac forming.

Click to expand...

 

rbeach84

Sr Member

• Sep 15, 2017

• #6

Acrylic sheet makes clear parts with the best clarity. If doing male molding, make sure it is polished using car (carnuba) wax before using... and as smooth as you can make it before that!
Regards, Robert

 

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maxhebus

Well-Known Member

• Sep 15, 2017

• #7

Thank you for the tip.

rbeach84 said:

Acrylic sheet makes clear parts with the best clarity. If doing male molding, make sure it is polished using car (carnuba) wax before using... and as smooth as you can make it before that!
Regards, Robert

Click to expand...

 

monker67

Well-Known Member

• Sep 15, 2017

• #8

I have never had that problem before, the PETG that I used was .040" thick.

 

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maxhebus

Well-Known Member

• Sep 15, 2017

• #9

Roger that.
I've already ordered PETG and Acrylic. I'm gonna test both.

monker67 said:

I have never had that problem before, the PETG that I used was .040" thick.

Click to expand...