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Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
is there any adhesive or paint that can be apply on a bolt? So once someone turned on the bolt, the paint will fade so it can tell me that someone have turned it for security,more like security seal. Is there such a thing?And it hv to withstand some temperature too
Couldn't you just use any old paint? Paint right over the interface between the bolt and hole so that when the bolt is turned, it cracks the paint seal.
Use your wife's fingernail polish... It's brittle when dry (usually), so tampering will be obvious.
White thermal silicone grease (heatsink compound) gets on everything, so you could probably find out who tampered with the bolt... Use to smear that stuff on everything white as a prank in shop class back in school.
Super glue works well, holds decent to clean metal and especially if you use an accelerator (it's a separate liquid you drip on the CA glue after application) it becomes extremely hard, like fingernail polish, only stronger and harder(more brittle).
A small (REALLY SMALL!) dab of glue or epoxy bridging the edge of the screw and surface or epoxy so that it breaks if the screw is successfully turned?
You could also clean the surface and screw with alcohol after it has screwed in and spray a bit of silicone conformal coating over it. THe MG Chemicals spray version has UV indicator in it so you'll be able to tell if anyone tried anything. Or you could just look at it. High temperatures too.
Again, super glue works really well, or even a simple dab of hot glue over the head. Most devices I take apart that have saftey dabs like that are usually hot glue or some kind of lock-tite. Super glue doesn't hold as well as lock-tite but for security it's fine.
Use WARRANTY STICKERS or ANTI TAMPER stickers instead of applying glue or paint on every bolt. Just past the sticker on the two cases (chassis) meeting points or in an edge.
If it is a plastic case some adhesives will permanently fix so very hard to remove the bolts in repairing conditions.
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