Skara Brae graffiti removal a success
By Sigurd Towrie
Story dated: September 9, 2007

Black permanent marker was used to deface one of the stones making up the dresser on House One.

The vandalised bed post.

Historic Scotland conservators have successfully removed the graffiti left in one of the houses at Skara Brae last month.

After confirming the graffiti was made by permanent marker, extensive testing was carried out off-site to find the best possible method of removal. 

A selection of solvents were trialled, starting with water and progressing through to a solvent that worked.  Once the correct solvent was found, it was mixed with a paper pulp to form a poultice. 

On arrival at House 1 last week, the team applied two poultices which removed much of the marker, but two further poultices with a different combination of solvents were then added to remove any remaining residue. The areas were then liberally flushed with water to remove any chemical residue.

Stephen Gordon, senior conservator at Historic Scotland said: “Our conservation team were on site moments after the incident occurred and from then on began working hard researching into the best possible solutions to remove the marker pen without damaging the stone.  After extensive trials, we achieved the right formula and we are delighted to say it has been remarkably successful.”

Mary Dunnett, Historic Scotland Monument Manager at Skara Brae said: “After discovering the graffiti, we feared there may be permanent damage to this precious 5,000 year old stone, but thanks to our dedicated team of conservators, House 1 is back to its former magnificent state. 

"Visitors and the local community have been very supportive during the past few weeks since the incident occurred and we are thankful for their cooperation.”