Add Anti-Slip Coating to Magnets
Electric tape, Plasti Dip or maybe even a paint or nail polish will work to add some friction or grip. The magnets are slick and will just slide down some metal surfaces when the shelf is loaded with anything reasonably heavy.
I want some level of impact buffer so the magnets don’t shatter over time due to the repeated impact of mounting. I also want to easily be able to wipe off metal debris should any get on the magnets.
Electric Tape (easiest & most effective)
Using 1.5″ wide electric tape is easier and faster than applying Plasti Dip and has just the right amount of friction. It adds a level of friction but will still slide down if overloaded rather than detach and fall. I would much rather the shelf just slide down than fall off.
On some of the boards with 6 top magnets, I added two layers of tape to add a little more impact cushion and make the magnetic attraction a little weaker. Every little bit of space between the magnets and metal surface weakens the attraction. Remember 6 top magnets is pretty strong and was hard to remove before I learned a trick (video).
Apply a Spray Coating (PlastiDip not recommended)
Applying Plasti Dip is more time consuming and it offers too much friction. The shelf is less likely to slide down when overloaded and will detach and fall.
I scuffed the surface of the magnets with sandpaper before applying the Plasti Dip. The Plasti Dip works but is not ideal because it will eventually wear and peel off and will have to be reapplied.
We don’t really need a rubber coating, it just needs to be something less slick than the magnets and offer some level of friction.
The electric tape is not perfect and can wrinkle if you try to adjust the shelf once mounted (Fabian!) but at least it’s easy to replace.
I think there is probably a better paint option out there and would like to hear some alternative ideas from viewers.
Edit 2020_10, I used Rust-Oleum metal paint and it works well enough but does chip and peel off with use and will need reapplication. I am sure there is probably a better coating for this application but until I find one, electric tape is the easiest and most effective option I have tried.
Plano ProLatch 23650-52 Stowaway Organizer with various Bolts, Magnets & 1.5″ wide Electric Tap. Notice the blue door blocker magnets. Those have saved my a$$ on many an occasion and I carry at least 2 in my pocket. More on those Here.
- Electric Tape White 1.5” Wide: https://amzn.to/3lz65lR
- Plasti Dip Rubber Coating: https://amzn.to/2Dcbkqq
- Rust-Oleum Paint White: https://amzn.to/38Pqn6q
- Sandpaper Rolls, 5 Grits: https://amzn.to/358EEK1
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