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Paint

November 30, 2012

Black and White Paint Scheme

Paint consists of pigments, binder and a solvent or water and comes in gloss, satin, eggshell and matt finishes. Solvent-based paints are shinier and harder-wearing than water-based paint but they give off more fumes and are less environmentally friendly.

Flame retardant paints emit non-combustible gas to suppress fire are also available.

Intumescent paint expands on heating to seal gaps during fires and is typically used on doors in historical properties where it wouldn’t be feasible to replace original doors with fire-doors.

Paint Effects
Some paints have sand added to them which gives a textured finish to the paint and recent developments in paint technology has led to suede textured paint finishes.

Other more traditional paint effects include rag-rolling, brushed and stenciled. A more modern paint effect is the ‘ombre’ look where you have colour graduating up a wall.

Tip: Generally the more matt a paint finish the more it will high imperfections but the less wipe-able it will be.

Colour Systems
Colour notation is basically a system of identifying colours accurately. The most popular system in use today is the Munsell System and it is based on the three dimensions of colour; hue, value and chroma.

Hue is the quality which distinguishes one colour from another; red from blue etc. Each hue is divided into 100 divisions and a colour’s position within the spectrum is notated by a number and a letter; R=red, B=blue, Y=yellow, G=Green, P=purple. Value is the quality which distinguishes the lightness or darkness of a colour, e.g. light blue versus dark blue. It is rated between 0 and 10, 0 being black and 10 being white. Chroma is the quality which determines the purity of a colour, e.g. a bright, pure yellow versus a dull, greyed yellow. A colour with a munsell reference 7.5R 8/4 has a hue position of 7.5, a value position of 8 and a chroma position of 4 or in other words flesh pink.

The RAL system of colour notation is used in the construction industry to denote the colour of coatings and the Patone system of colour notation is typically used in graphic design industry but has recently crossed over into interiors.

Preparing for Painting
Walls to be painted should be smooth, clean and dry. Hairline cracks and dents should be filled with spackling compound or finishing skim. Once dry the compound or skim should be sanded smooth and flush with the surround surface. A thorough cleaning is then required to remove all dust before gaps around doors, windows and skirting are filled with decorative caulking. Finally all sockets, switches and window frames should be protected.

Tip: The aim of painting is to achieve the best coverage with the fewest number of coats.

New plaster needs to cure for about 4 – 8 weeks before being painted, depending on the thickness of the plaster and the humidity of the space. If uncured plaster has be painted sooner you can use one coat of water-based latex paint primer and 2 coats of latex paint. Latex paint is used as it does not interfere with the drying out process.

When painting pebbledash it’s very important that the paint is not too thick and that it’s painted on a fair day. If you paint it on a day that’s too hot the paint the surface of the paint will dry quicker than rest of the paint and lead to hairline cracks in the paint.

Tip: It is advisable to brush down painted pebbledash every few years to prevent a build up of dust in the crevices.

Glossary
Tints are colours that have had white added to them.

Shades are colours that have had black added to them.

Pastels are colours that have had both white and black added in equal proportion.

Pastel Tints are colours that have had a larger amount of black than white added.

Also ….. Technical Information on Wallcovering (wallpaper)

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2 comments

  1. […] Also ….. Technical Information on Paint […]


  2. […] Don’t forget to also check out technical information on paint […]



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