Casting with Postage Stamps

[acmaclaren]

I want to cast some blanks using postage stamps. I'll be using LD, because I don't have pressure pot. Can someone tell me if I need to seal the postage stamps before casting them? I tried doing a search, but didn't find anything specific to postage stamps. Any advice would really help. Thanks in advance.

 

[Loucurr]

Beancounter does postage stamps.

 

[mecompco]

The few I've done I sealed with clear Mod-Podge spray before casting. Granted I use PR w/no pressure, so can't say if it's necessary with LD.

 

[jttheclockman]

Yes seal them. Without pressure they will get soaked because LD is so thin. Takes a long time to cure so do not be in a rush.

 

[acmaclaren]

Thank you for answering my question. I have a couple of things to use as a sealant. I'll just experiment with each one and see which worked best.

 

[Cwalker935]

I like using the clear Elmer's school glue to seal. It reacts well with PR. I have not tried it with liquid diamond but expect it would do fine,

 

[jttheclockman]

My suggestion is thin CA so that you seal all ends also. Some people use modpodge.

 

[Cwalker935]

My suggestion is thin CA so that you seal all ends also. Some people use modpodge.

I have had issues using CA on certain stamps particularly older ones. It will sometimes dissolve the ink and cause the stamps to blur.

 

[wouldentu2?]

My suggestion is thin CA so that you seal all ends also. Some people use modpodge.

I have had issues using CA on certain stamps particularly older ones. It will sometimes dissolve the ink and cause the stamps to blur.

One quick swipe over the stamp with CA to seal it otherwise it will smear the ink.

 

[JohnU]

Medium CA works better than thin for getting a quick wipe and not smearing because it doesn't soak in as quick.

 

[acmaclaren]

I have Elmers, Mod Podge, Thin CA and Medium CA. I'll give all 3 a try. Then see how they turn out.

 

[cpmech425]

I always use Mod Podge with great results. I cast with Alumilite slow under pressure.