"These are great for quickly removing paint without damaging the steel surfaces underneath. They are far far more effective than rotary wire brushes yet gentler than sanding discs or similar. Paint is removed in an instant. The only downside is that they don't last that long, especially if they are used on edges or corners. They last reasonably well if you are careful and finish awkward bits by other means. They are quite expensive given the speed they can be used up, but it is often worthwhile for paint job preparation as hours of work can be done in minutes. I haven't found anything better yet, even a sandblasting gun for my air compressor was not nearly as good."
"I used these wheels to grind the grime and gunk off a set of ancient iron/steel railings at a prestige property in Hampshire. The railings had been neglected for many years and the client wanted me to use wire brushes on power tools, however I chose to use these pads as they struck me as a "Softer" option to using steel on steel. They worked well, they didn't mark the surface of the steel too badly and they didn't throw sparks as the wheel degrades rather than cutting into the metal. To do a 7 metre run of railings we used 4 wheels which, given their cost, was acceptable. We learnt early on not to lean too hard on the grinder as all it did was eat the wheel. being slightly flexible and sacrificial it worked well on the curves of the railings and also rapidly removed the detritus on the flat plates. We then finished with a combi colour undercoat primer, and gloss black in the same - Looking good!!"
"bought this wheel to prep metal railings before re-painting not bad, wears down quickly ended up doing it the old fashioned way as multiple wheels would of been used (would of cut in to profit margin too much) great for smaller jobs"
"this disk did what it said it would do an even removed graffiti from pourous brick however it lasted all of five mins with a battery operated grinder! and the backing pad marks the surface you trying to clean. cannot vouch for use on other materials but dont hold out much hope. also for the price there being sold i really dont think the disk is worth it for how quickly it burns out!"