Soft "varnish" on PC boards?

[Ignoramus14946]

I have a couple of PC boards from where I want to nicely remove
components. They are covered in soft "varnish", it has a rubbery
texture. How could Iremove this varnish?

thanks

i

 

[PeteS]

I have a couple of PC boards from where I want to nicely remove
components. They are covered in soft "varnish", it has a rubbery
texture. How could Iremove this varnish?

thanks

i

That sounds more like one of the varieties of conformal coating. There
are various removal solvents, but which one you can use depends on the
coating.

A pretty universal remover was Freon, and damned fine it as at the task
too, but that's not really available for outdoor use any more
[no eco-shouting please, I am merely making an observation]

You might look in your favourite catalogue and see what is availble
under 'solvents'

Cheers

PeteS

 

[GregS]

I have a couple of PC boards from where I want to nicely remove
components. They are covered in soft "varnish", it has a rubbery
texture. How could Iremove this varnish?

thanks

i

That sounds more like one of the varieties of conformal coating. There
are various removal solvents, but which one you can use depends on the
coating.

A pretty universal remover was Freon, and damned fine it as at the task
too, but that's not really available for outdoor use any more
[no eco-shouting please, I am merely making an observation]

You might look in your favourite catalogue and see what is availble
under 'solvents'

Cheers

PeteS

I have some Acetone, Freon, and some Trichlorethane, but I don't think either
would remove a rubbery coating, especially silicone.

I used to have a Trichlorethane fire extinguisher long ago.

greg

 

[kell]

I have a couple of PC boards from where I want to nicely remove
components. They are covered in soft "varnish", it has a rubbery
texture. How could Iremove this varnish?

thanks

Why not just try something harmless like mineral oil. You can go to
the nasty stuff if that doesn't work.

 

[Al]

I have a couple of PC boards from where I want to nicely remove
components. They are covered in soft "varnish", it has a rubbery
texture. How could Iremove this varnish?

thanks

i

Check out: http://www.dynaloy.com/Products/potting_removers.html

I've used their stuff for years with great success.

Al

 

[Ian Stirling]

I have a couple of PC boards from where I want to nicely remove
components. They are covered in soft "varnish", it has a rubbery
texture. How could Iremove this varnish?

I assume it's SMD components - and the varnish is over the top?