A poultice consists of an absorbent material consisting of a paste which is applied to the area to be cleaned. The poultice is kept moist and left on the stain as long as necessary for it to draw the stain out of the masonry. As it dries, the paste absorbs the staining material so that it is not redeposited on the masonry surface. The paste turns into a thick film which can be easily removed.
It is an easy application and removal technique which is very specialised mainly for internal cleaning and paint removal applications.
- Internal cleaning
- Localised cleaning
- Paint removal
- Minimal disruption
Beeston Parish Church
The internal feature window surrounds were subject to poultice cleaning to remove surface residues and dirt
War Memorial, Appleton Gate, Newark
The War Memorial is located in the eastern churchyard of St Mary Magdalene Parish Church on Appleton Gate, Newark. The memorial was erected in 1919 in honour of the soldiers who died in the Great War. It is limestone in the form of a cross on a limestone plinth with a bronze sword on the east face.
The whole monument was cleaned using the Doff cleaning system to soften the detritus and remove the surface dirt but the staining on the stone plinth caused by poppy rings was successfully removed by an EDTA poultice. The EDTA poultice was also used to remove the verdigris staining on the stone shaft from the bronze sword.
Before and after showing the successful removal of the poppy stains on the plinth.