Bazza,
We sand, seal, clean and maintain a good many sports halls and this is is a topic that deserves much more time than is ever given to it.
When sports floors and sanded and finished the product used is always slip resistant to BS and EN standards. Depending on usage this slip resistance will last a number of months before the manufacturer of the product ceases to be liable and whoever is responsible for the maintainence of the floor becomes liable. The reason for this is that body fat is deposited on the floor in the form of sweat when sports are performed, this body fat must be removed in order to maintain slip resistance and this should be done using a scrubber dryer or basic rotary and a wet vac to remove the slurry quickly. It is advisable to use a professional cleaning product such as Junckers Sylva Sports Cleaner,
Believe it or not, proper gym maintenance involves dusting the floor daily (again to maintain slip resistance and stop scratching) with a golden magnet and basic wet mopping weekly, this rarely happens needless to say. In any case as Jamie says cheap acrylic seals must not be used on these floors and unless you want to be responsible for any accidents do your self a favour and DON'T DO IT! Sports floors are supposed to be cleaned, screened and re-lacquered at whatever time interval is necessary to stop them wearing through and maintained as above until such time as this process needs doing again.
Its funny how there is always enough money to build these facilities but never enough to maintain them!
Terry
