prep for potting
prep for potting
(OP)
We have had a few electrical issues that appear may be caused by metallic particle contamination before or during potting.
"Tack rags" are available for wiping surfaces before painting, and don't contaminate the surface to be painted.
Are similar items available that have been proven non-contaminating for items to be potted?
Thanks,
Dan T
"Tack rags" are available for wiping surfaces before painting, and don't contaminate the surface to be painted.
Are similar items available that have been proven non-contaminating for items to be potted?
Thanks,
Dan T





RE: prep for potting
Better to find and eliminate the source of the particles.
Mike Halloran
Pembroke Pines, FL, USA
RE: prep for potting
Vacuum
Sweep with a small niobium magnet.
I agree, have never heard of such a thing, but they have small robots that make other robots too so anything is possible.
Would need to know more about the substrates(skin, core and compounds) to help out, but still seems goofy, best off to just not let the "particle" be there in the first place.
RE: prep for potting
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: prep for potting
We don't blast or abrade our product (although I think we should blast some surfaces). Here is a source of potting compounds that mentions creating particles as part of prep for good bonding (as does practically everyone, including MIL-HDBK-17). They also mention REMOVING the particles without being real specific. I'll squeeze them for particulate particulars.
ht
Surface preparation: To obtain good adhesion, the surfaces to be bonded must be free of grease, oil, mold release, water and dust. For maximum adhesion, thoroughly clean all surfaces with a strong cleaner/degreaser. Roughen surfaces by grit blasting, grinding or with a sanding disk.
>>>Remove all dust and grit prior to application of the product.<<<<
RE: prep for potting
Wes C.
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