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Municipalities & Public SpaceSenlis (60) • Oise, France
Graffiti and Tag Removal on Historic Cut Stone in Senlis
On-Site Expert: Pierre-Olivier SIENER
Client: City of Senlis Municipal Technical Services
Duration: 1h30 on-site intervention
⚠️ Technical Challenge
Project Context & Challenge
A medieval stone surrounding wall was damaged by heavy black and red acrylic spray paint. Solvent chemicals risked dissolving pigments deeper into stone pores, creating an indelible 'ghost shadow'.
⚡ Raynovation Laser Technical Solution
Applied Laser Stripping Method
Emergency intervention with our mobile laser unit. The pulsed laser beam vaporizes acrylic resin by localized thermal shock in fractions of a second, preventing paint penetration.
Measured Results
100% total removal without any residual ghosting or shadows.
Safe operation without toxic chemicals or high-pressure water rinsing.
Period stone material preserved with zero color alteration.
Fast response initiated from a simple photo sent by email.
“Impressive! The paint literally vanished under the laser light without leaving the slightest mark on our historic ramparts.
Technical Project Sheet
TechnologieLaser Optique Mobile
Type de dégradationPeinture acrylique multi-couches
SubstratPierre de taille médiévale
ZoneSenlis & Sud-Oise
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