Re: Minimum Thickness for a Reliable Leak Proof Part

From: Jeremy Pullin <>
Date: Thu, 31 Oct 2013 13:13:10 +0000

You can partially seal the part by suspending it in acetone vapour. You can also have a similar (though not as pretty) result by painting on dichloromethane which is also known as plastic cement. This partially melts the surface and allows it to be smeared smooth by the action of painting. Another thing that we do is apply a coat of acrylic lacquer.

Ron is right though when he says that FDM is not an ideal process for water tight containers.

Good luck

Jeremy Pullin

From: [] On Behalf Of Morley, Ed
Sent: 31 October 2013 12:24
To: DeFonce, Ron C;;
Subject: Re: [rp-ml] Minimum Thickness for a Reliable Leak Proof Part

I believe that you can vapour polish ABS FDM parts to seal them to some extent.

From:<> [] On Behalf Of DeFonce, Ron C
Sent: 31 October 2013 11:48
Subject: Re: [rp-ml] Minimum Thickness for a Reliable Leak Proof Part

Doug -
I don't believe any FDM part is water-tight. It would need some sort of seal coat.
That said, at least 3 layers thick (1.5 mm or .06" thick) with some sort of sealant be applied to the part.

From:<> [] On Behalf Of<>
Sent: Wednesday, October 30, 2013 6:24 PM
Subject: [rp-ml] Minimum Thickness for a Reliable Leak Proof Part

We are trying to determine the reliable minimum thickness for an FDM type process for making a vessel to hold water.

Does anybody have experimental experience with this type of process.



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Received on Thu Oct 31 2013 - 15:13:24 EET

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