liquid nails silicone for electronics?

[CopperCone]

Is liquid nails silicone ok for electronics?

It contains polysilane, and it does not have a vinegar odor. I like it because its at home depot.

Things like GE Silicone 2 emit acetic acid on curing...

[CJay]

If the manufacturer doesn't specify non corrosive in their data why take a chance on an unknown?

You can get neutral cure silicones from a lot of the DIY/home depot like places, Dow corning 799 is one example of a non corrosive silicone, GE SSG4000 is another and there will be many others.

 

[T3sl4co1l]

Uhhh, hmm, http://products.ppgac.com/products/msds?culture=en-US&productcode=00407650 says it's based on an oxime formulation.  Which will hydrolyze to something that'll corrode electronics, I think (if not ammonia, then hydroxylamine or something along those lines).

The ones based on alcohols, I think, are the least corrosive?  And there are many more carefully crafted formulations (that I don't really know about) that are also safe to use.  And of course two-part mixes, if you happen to have them.

Tim

[xavier60]

I like to use flowable silicone sealants because they give a smooth finish. One such product is Permatex Flowable Silicone Windshield & Glass Sealer.

[james_s]

The "Sensor Safe" RTV is non-acidic and should be fine.

That said, I've used ordinary clear RTV on electronics before and despite the acid I never had any problems with corrosion. That may not always be the case though, especially if the device you use it on is enclosed and collects the vapor.

[T3sl4co1l]

I once had a control board returned from a customer, who glued the board into its enclosure with a heavy layer of acetic acid based silicone.  The underside was covered in white corrosion. (Probably mixed lead and tin basic acetates.)

Tim

[james_s]

Yeah that sounds like asking for trouble. I've never used it in huge quantities in electronics, just a blob here and there to stick something together or insulate a HV connection.