Magnetic glass boards are popular because of their sleek and stylish design. However, unlike traditional metal boards, glass boards require magnets that are relatively powerful. The reason for this can be found in the way a magnetic glass board is constructed. It consists of a glass plate and a thin metal plate behind it. The magnet must therefore be strong enough to penetrate the glass plate and stick to the thin metal plate behind it. And the thicker the glass plate, the more powerful a magnet is needed. The opposite is true for the metal sheet. The thinner the metal sheet, the stronger the magnet needed. As a rule of thumb, "cheap" glass boards have a thin metal plate and a thick glass plate, which means a powerful magnet is needed. Glass boards that are more expensive will often have a thick metal plate and a thin glass plate, allowing less powerful magnets to be used.
How we have tested magnets for glass boards
The glass board
We tested our magnets on a magnetic glass board from NAGA. They are widely used and are at the low end of the price range. As explained above, this means they require some pretty powerful magnets, but if the magnet works on a Naga glass board, they should also work on more expensive magnetic glass boards. The NAGA glass board we are testing on has a glass plate thickness of approximately 3 mm and a metal plate thickness of approximately 0.5 mm.
The magnets
We have tested the magnets that meet the following criteria:
- The magnet must have a strength of between 2.4 kg and 8.0 kg. A weaker magnet may not stick properly and a stronger magnet may stick so hard to the glass board that it can be difficult to remove.
- The magnet must have a height of at least 5 mm. If the height is less, it can be difficult to grip it with your fingers.
- The magnet must be able to hold at least 2 pieces of paper to the glass board without the paper sliding off.
The results
For each magnet, we have tested how many pieces of A4 paper (80 g/m2) it can hold without slipping. The result is written as a number to the right of the text "Glass board strength (number of A4 sheets)" on the product page if the magnet has been tested to work on a glass board. For example, a number 5 means that the magnet has been tested to hold 5 pieces of A4 paper.To see an overview of all magnets suitable for magnetic glass boards, visit this link:
Please note the following
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Like all glass, glass boards can be easily scratched. Therefore, avoid pushing the magnets around the glass board without a piece of paper in between.
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If you want to completely eliminate the risk of scratches, we recommend choosing rubber magnets.
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Our test is by no means a scientific test, but simply meant to help you decide which magnet is right for your needs. Before you buy, consider the type of glass board the magnet will be used on and the thickness of the paper, among other things.