3M Grinding Block Fine-Grained - For Grinding Magnets

This is the easiest way to prepare your magnets if you need to secure them with glue:

Sanding block with fine grained sandpaper all around. So you can scratch your magnets easily and make the glue stick better. Roughening up the magnet makes the bond more durable.

Specifications 

Size: 100x68x26 mm.
Model: 4-sided fine-grained

The easiest way to explain it is that you need to give your magnet a slightly rough surface to give the glue more contact surfaces.

If you just glue on a flat, smooth magnet, the glue has nothing to grab onto. So, it is necessary to use fine-grained sandpaper, and we found a sandpaper block is great for the job.

The advantage of this sandpaper block is that you can put it on the table and run the magnet easily over one of the block. The block offers you full control, as opposed to paper sandpaper held on one hand and the magnet in another. We believe this is an effective and flexible solution and we use it regularly at Magnetz.dk.

The block is also called a 3M sanding sponge, but it is hard - not soft like a normal sponge.

We sell the hand sanding blocks individually - so you only buy and receive exactly what you need

Item no. F PT2 / PN63197
Manufacturer: 3M™
Grain Size: Fine