You will start with a coarser grit pad.
How to use a floor sander on concrete.
Do not let the slurry dry on the concrete because it will harden in place.
Thus when working on an indoor floor or large surface sand the entire surface regardless of how much actually needs worked on.
If you only have a small area to sand you can also use a palm sander orbital sander or belt sander.
Normally you would use diamond heads for aggressive grinding but we only need to take a bit off prior to sealing.
Working on a concrete floor or other large surface will require either a floor sander or a large degree of masochism.
How many and what types of pads depend on the sander that you choose and the type of finish you are hoping to achieve.
Floor sanders work on concrete the same way they work on wood so a heavy duty sander will be suitable for more uneven surfaces whilst orbital sanders will finely sand already smooth concrete.
Note that you cannot sand one spot without risking discoloration.
I have been told a polyvac machine floor buffer with 80 grit paper is commonly used although i.
You can use either a floor sander pole sander or a grinder depending on various factors like the size of the floor to be polished availability of time budget and the skill of the operator.
A concrete grinder takes the guesswork out of finishing graffiti covered surfaces and smoothing out rough edges.
Versatile and durable it can also be used to rough up floors before applying a finish.
Each sander has a different series of sanding pads that are designed for use on concrete.
Regardless of what you intend to use it for you ll need to become familiar with the characteristics and performance of your grinder.
Grinding and repairing a concrete floor can create concrete dust so be safe and wear a respirator a dust mask will not give you enough protection.
Rough imperfections may require the use of a special diamond disc and a concrete floor grinder.
I would like to know how successful a drum sander would be to give a concrete floor a light sand to remove 1 2mm of surface laitence.
It s even more challenging if you re trying to understand how to sand a concrete floor by hand as most of the prescribed methods online use machinery that can be expensive and difficult to use.
There are many different viewpoints on this out there and it is challenging to know which method is the best and why.
Sanding a concrete floor requires a variety of sanding pads.