Delamination

Separation or different layers.


Density

Mass, relating to volume.


Designer

Designer. Someone who prepares or modifies designs for a building, product or system relating to construction work.
See: https://www.citb.co.uk/documents/cdm%20regs/2015/cdm-2015-designers-printer-friendly.pdf


Deteriorate

Decaying process.


Dew Point

Temperature as moisture condenses.


Dilutant

A liquid, not necessarily a solvent which reduces the viscosity; a thinner


Dipping

Application of paint by immersion.


Discolouration

General change in colour from the original.


Dispersion

The suspension of pigment particles into the medium generally when referring to water-based products. (see Grind for oil paints).