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Electronics => Repair => Topic started by: electr_peter on February 09, 2022, 08:08:53 am

Title: [SOLVED] Red varnish-glue for locking screws and bolts, electronic glue
Post by: electr_peter on February 09, 2022, 08:08:53 am
I need some external locking solution for small screws/bolts. I have seen a thread on EEVblog before but can't find it anymore.
It is semi-transparent substance, red in color glue (like honey), put on screw/bolts externally to mark that they are locked and prevent them from loosening (or at least mark loosened ones). Easily removable. Household equivalent is red nail varnish. It is not locktite for internal threads, that's a different thing.

How is this substance called and where to get it?
Title: Re: Red varnish-glue for locking screws and bolts
Post by: Audiorepair on February 09, 2022, 08:16:53 am
"Anti tamper" is one such product.

Not sure how effective a thread locker it is, but ok to seal presets against vibration.


https://uk.farnell.com/electrolube/blr10sl/adhesive-antitamper-red-10ml-syrge/dp/1841559?st=tamper
Title: Re: Red varnish-glue for locking screws and bolts
Post by: jpanhalt on February 09, 2022, 08:17:25 am
Are you looking for "anti-tamper" indicator?  Many manufacturers.  Here's one: https://www.newark.com/electrolube/blr15ml/sealant-bottle-15ml-red/dp/44AC2379 (https://www.newark.com/electrolube/blr15ml/sealant-bottle-15ml-red/dp/44AC2379)
Title: [SOLVED]Re: Red varnish-glue for locking screws and bolts, electronic glue
Post by: electr_peter on February 09, 2022, 10:05:09 am
Thanks for suggestions. I think I found right search terms.
Anti-tamper seal products become hard and brittle, like nail varnish. I was after something softer like "electronic glue" or "threadlocking adhesive silicone sealant". "Kafuter K-200R" product fits the bill, it will limit loosening of screws.
Title: Re: [SOLVED] Red varnish-glue for locking screws and bolts, electronic glue
Post by: Oilngas on February 10, 2022, 03:08:15 am
Perhaps you are thinking of "Glyptal".
http://www.glyptal.com/products/1201tech.pdf (http://www.glyptal.com/products/1201tech.pdf)