This short video shows an everyday A-Pex project.
An old Tsing Yi warehouse with multiple coatings of Epoxy.
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Projects like these generally need 2 passes. First pass using heavy, large diameter steel shot. This helps break down the layers of epoxy. By slowing the machine down it is possible to remove all the layers in 1 go but this can leave an uneven finish on the concrete.
We choose to do the second pass with a lighter steel shot which removes the remainding parts of epoxy and leaves an ideal concrete surface ready for new coating.
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