3/4″ dia. x 1/8″ thick Red & Green Disc Plastic Rubber Coated Weatherproof Magnets

3/4″ dia. x 1/8″ thick Red & Green Disc Plastic Rubber Coated Weatherproof Magnets PCDNM-RG Series, Small Disc Assorted Colour Disc Round Plastic Plating Neo (NIB) Magnet, Polypropylen Coating Strong NdFeB Magnets, whiteboard magnets, office magnets, refrigerator magnets China factory

3/4″ dia. x 1/8″ thick Red & Green Disc Plastic Rubber Coated Weatherproof Magnets parameters:

Part No.: PCDNM-RB Series
Size: 3/4 inch diameter x 1/8 inch thick disc. Size including plastic coating: 7/8 inch diameter x 1/4 inch thick. or (19.1 mm x 3.2 mm) Size including plastic coating (22.2 mm x 6.4 mm).
Magnet encased inside impact resistant hard plastic shell.
Material: Neodymium (NdFeB)
Magnet Grade: N48 (also choose N40, N42, N45, N50)
Magnet Shape: Disc
Color: Red & Green
Plating/Coating: Ni-Cu-Ni-Plastic
Max Operating Temp: 176ºF (80ºC)
Tolerances: ±0.004″ x ±0.004″
Magnetization Direction: Magnetized Axial Through Thickness (Poles on Flat Ends)
**Magnet size is prior to plastic coating

What are the advantages and disadvantages of plastic encased magnets?
The biggest drawback to Neodymium magnets is while magnetically very strong, they are very physically fragile. Tough coatings, such as nickel, go a long way toward protecting the magnets from cracks and breakage. However, after repeated impacts with each other or other surfaces, even the best metal coatings will fail. Plastic coatings offer an impact and corrosion protection for the fragile magnets inside. These magnets can sustain far more punishment than the standard metal coated magnets, making these a good play or experimention magnet. However, on the negative side, this relatively thick coating reduces the effective power of the magnet due to the logarithmic drop in magnet strength as the distance increases from the surface of magnet. How much of a difference? 2 standard nickel coated 3/4 x 1/8″ N48 disc magnets will pull at each other with about 9 pounds of force. Two 3/4 x 1/8″ N48 plastic coated will only pull with about 5 pounds of force. That is 45% less strength. So it is a trade-off. If you require maximum power, go with metal coated: if you plan on playing with neodymium magnets A LOT these are the magnets for you!

These Neodymium Iron Boron magnets are also known as “Rare Earth” or NdFeB magnets. Neodymium magnets are simply incredible!
They are far more powerful than those old horseshoe magnets most of us grew up with.

What can these magnets be used for?
They are fun to play with, but these magnets have many practical uses as well. Use them on the fridge. Put them to work in the tool shed. Use them as fasteners on cabinetry. They are great for science experiments. You are limited only by your imagination. 1″ x 1/2″ x 1/4″ Blue ABS Plastic Housing Encased Block NdFeB Magnet