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LIMESTONE RESTORATION LEARNING CENTER

CATEGORIES: LIMESTONE RESTORATION - BLACK CRUST - GRAFFITI SHADOW REMOVAL - NEW CONSTRUCTION

GRAFFITI REMOVAL

graffiti removal Limestone

Product: Stripper Cream


Application:
First, adequately prewet the wall and then roll on the Stripper Cream. Prewetting can be done best with a pressure washer. This done to create a reaction medium for the caustic in the stripper. The stripper will create heat. Rolling or brushing the stripper on helps push it into the pores of the stone and begins the reaction with the water to increase the speed of removal. The stripper may be sprayed on and this would prove beneficial if there is a very large area to be covered and very little protection required.

Dilution: At higher temperatures, higher dilutions of Stripper Cream may be appropriate. The contractor should rely on either experience or test patches to determine how far the product can be diluted and still be effective. Always bear in mind that it is much more expensive to redo work because of not allowing adequate dwell time or over-diluting product than it is to do the job right once.

Removal: Before actual removing, low pressure water should be sprayed on the area and color run should be observed. If the shadow does not release with low pressure, do not proceed. Reapply product to rinsed area and allow longer dwell time. If adequate color run is observed, begin pressure wash rinsing. Pressure from 700 to 3000 PSI is appropriate, but never use a nozzle of less than 25 Degrees and care must be taken to not apply too much pressure if the shadow is not released. Repeat the chemical application or switch to Graf-Ex or Stripsol, whichever is best to remove any paint that Stripper Cream does not remove.






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