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I have to remove paint on a cement parking garage that is not very smooth. I have a TLR7 machine, and need to remove the paint without causing too much surface damage. Do you recommend using this machine or another machine, scarifier, or shotblaster?

Before you decide which machine to use, it is important to ask your customer what level of surface scarring will they accept. Please refer to the SP surface profile chart to determine the current surface profile and the acceptable profile the customer expects.

There is always a tradeoff between 100% paint removal and surface scarring, since the surface is never flat and prior coatings may be bonded at different thicknesses, depending if the prior application was profiled prior to striping. After each party agrees to a profile, determine if the paint is completely bonded to the surface, or flaking or peeling off. Select the appropriate machine and cutter or shot size that will achieve the correct percentage of paint removal and surface scarring. This will determine the type of cutters and how deep you have to remove into the surface.

If the paint is thin, under 15 mils and the surface is flat, the Erase-it Fine will be the first step, and the final can be the Grind-it cutters. If the surface is not level, the use of a rotary eraser or scarifier will get the surface level prior to complete paint removal. A shotblaster will create shadowing due to the surface undulations as well.

The use of a planetary rotary eraser will provide a good surface finish when permanently removing paint, if the operator will work the surface in a wider area, leaving a bevel-edge finish.  Always work the equipment in one direction at the same cut depth to control the surface finish. Only remove deeper after the first pass is complete, and that the next cut pass removal finish is acceptable. Of course, the cutter spindle must be set at the correct pitch angle (to flat) and the operator must walk the machine slowly in a consistent pattern to assure the cutters leave a consistent bevel-edge profile. Any remaining surface marks can be cleaned up with the Grind-it cutters.

When in doubt, always consult with a SMITH representative, since not all processes will perform the same way, since surface conditions are always changing.

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folder Removal Equipment -> FS209D Portable Scarifier
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folder Removal Equipment -> LNX8 Traffic Line Remover
folder Removal Equipment -> SPS10 Surface Preparator
folder Removal Equipment -> SPS8 Walk Behind Scarifier
folder Removal Equipment -> X1 No Groove Power Eraser
folder Removal Equipment -> X3 Triple Head Power Eraser
folder Cutters
folder Cutters -> Erase-It - Carbide Planetary Pin Cutters
folder Cutters -> Grind-It - Diamond Cup, Plug, Turbo & Blade
folder Free Help and Guidance -> Best Practices
folder Removal Equipment -> FS351 Self-Propelled Surfacer

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