Removing Shadows

Removing Shadows

When using our products, shadows on porous surfaces can be avoided byensuring the graffiti is flood coated adequately, with enough dwelltime to fully dissolve the graffiti before rinsing.


For example, if youapplied Bare Brick Stone & Masonry Remover as instructed but thenfound that an extra coat faded the graffiti more - It generally meansthe dwell time wasn't long enough the first time.


So always remember toFLOOD coat graffiti generously and leave it on...THE LONGER, THE WETTER,THE BETTER! Let the products do the work for you. The last thingstarted is always your pressure washer. 

 

If necessary, leaving ‘Bare Brick’, Stone & Masonry Graffiti Remover or Feltpen Fadeouton overnight (especially if there are any magic marker stains) can beextremely helpful on stubborn older graffiti. On the following day,lightly coat again before rinsing with your pressure washer. 

 

Feltpen Fadeout is extremely beneficial in removing certain spray can stains on porous masonry and concrete. 

 

After dissolving as much graffiti as possible with Bare Brick Stone & Masonry Remover, an application of Feltpen Fadeout during or after the final rinse will eliminate any remaining pigment or stain in the surface. 

 

This method (which is illustrated in the sequence below) can be usedon a variety of spray can colors, however it is especially useful on REDspray cans and any color containing red, eg: oranges, pinks, purplesand browns. These colors all contain fine red oxide pigments and are themost likely to leave a residual stain. The stain can be easily removedwith a generous application of Feltpen Fadeout.

Once Feltpen Fadeoutis applied thickly to the stain, the fading process normally takes onlya few minutes to less than half an hour, but longer dwell times may benecessary. Fortunately, once you begin to see the stain disappear (evenmarginally) you will certainly fade the rest, so be patient with thedwell time and reapply Feltpen Fadeout if needed. 

 

There are the occasional black or blue spray cans that can showresistance to any removal product on concrete or limestone leaving youwith a threaten shadow. When this happens a solution of 1 part muriaticacid (hydrochloric acid/HCL) to 8 parts or less of water will likely fixthe problem quickly. 

 

Brush on this solution and agitate with the brush. You will see itfizz up a bit, as the solution neutralizes. Then rinse shortly afterwith your pressure washer.This method can be very quick and satisfying,particularly on stubborn blue or black shadows like the ones in thephotos below.

When using this technique it is a good idea to test out your muriaticsolution first in an inconspicuous area. Stronger solutions maypossibly have the effect of slightly darkening an area. If this shouldhappen, a complete section may have to be cleaned (with the solution).Remember, your gun technique must be very even and gentle when rinsingthe muriatic solution to avoid ‘tiger striping’ the area. 

 

HOT TIP: In hot weather environments, try thoroughly wetting the wall down first, prior to applying Bare Brick Stone & Masonry Remover.Working on a DAMP wall (not dripping wet) will visibly help speed upthe removal process, and slow a hot thirsty wall from slurping up anddrying out the remover before it has had a chance to penetrate andencapsulate the graffiti from behind.

3 Things to Remember

1) FLOOD coat graffiti generously and leave it on...THE LONGER, THE WETTER, THE BETTER!

2) In hot weather environments, try thoroughly wetting the wall down first, prior to applying Bare Brick Stone & Masonry Remover.Working on a DAMP wall (not dripping wet) will visibly help speed upthe removal process, and slow a hot thirsty wall from slurping up anddrying out the remover before it has had a chance to penetrate andencapsulate the graffiti from behind.

3) There are the occasional black or blue spray cans that can showresistance to any removal product on concrete or limestone leaving youwith a threaten shadow. When this happens a solution of 1 part muriaticacid (hydrochloric acid/HCL) to 8 parts or less of water will likely fixthe problem quickly.