How long can you wait before PnP transfer?

[Matt Biermann]

Hello all. New to the forum and glad to be here. Anyone here use press-n-peel for home-made PCB design? I had a quick question about it... How soon do you need to iron the toner trace onto your copper? I don't have a laser printer at home - using the one at work. Just not sure if I can print the trace on the PnP and wait a few hours before ironing it on. Is this too long to wait? Do you have to iron it on immediately after printing? Thanks.

[bean]

You can wait as long as you like. The toner is fused to the paper, as it would be with regular white paper. I bet you could stick it in a drawer for years and still be able to transfer it.

[R.G.]

Months at least. I used to print them and keep them in envelops ready to use.

[Matt Biermann]

Wonderful news! Thanks guys. 

[Schappy]

just make sure you wipe any dust or debris off the transfer before applying.