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e-Jet Inc. A

ll rights re

served.

Graffiti Removal From Franciscan Sandstone at the Presidio

• Stripping several layers of oil, acrylic, and alkyd paint

• Removal from Ashlar-pattern sandstone

• Mild Abrasives:

- particles too hard-edged

- system not as controllable

• Chemical Strippers:

- long set time

- would not remove total pigment

- requires pressurized water rinsing

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pong

e-Jet Inc. A

ll rights re

served.

Graffiti Removal From Franciscan Sandstone at the Presidio

• Chose White SPOCC Sponge

MediaTM

• Gradual / Controllable paint removal

• Minimal disruption to sandstone

• No VOCs or hazardous chemicals

• Easy to clean up

• No water or rinse required

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©20

08 S

pong

e-Jet Inc. A

ll rights re

served.

Graffiti Removal From Franciscan Sandstone at the Presidio

Before After