Polyvinyl Acetate (P.V.A.)
Synthetic resin commonly used as the binder in the manufacture of emulsion paints.
Polyvinyl Acetate (PVA)
Used as a binder in water based emulsion paints.
Also used as a general glue for woodwork.
Polyvinyl Chloride (P.V.C.)
Synthetic resin used in solvent based paints – can also be used in emulsion paints and plastisols.
Popping
Small eruptions in a paint or varnish coating which occur and do not flow out whilst the wet film is setting
Principal Contractor
Principal/Nominated Contractor. Manages the construction of a project, liaising with the client and principal designer throughout the project, including during the pre-construction phase. See: https://www.citb.co.uk/documents/cdm%20regs/2015/cdm-2015-principal-contractors-printer-friendly.pdf
Principal Designer/ Archtitect
Principal Designers/Architect. Appointed by the client of projects with more than one contractor. Responsibilities include overall responsibility for planning, monitoring, coordination health and safety.
See: https://www.citb.co.uk/documents/cdm%20regs/2015/cdm-2015-principal-designers-printer-friendly.pdf
Rag Rolling
Formation of a textured or variegated pattern by the use of tinted scumble or glaze over a basic ground colour.