PAINT

HANNAH PICARIELLOCONSTRUCTION AND MATERIALS

PROJECT 2SPRING 2014

HISTORY• In 2011, South African archeologists reported finding

a 100,000-year-old human-made ochre-based mixture that could have been used like paint. Cave paintings drawn with red or yellow ochre, hematite, manganese, oxide and charcoal may have been made by early Homo sapiens as long as 40,000 years ago.

• Ancient colored walls at Dendera Egypt, which were exposed for years to many different elements, still possess brilliant color, as vivid color as when they were painted 2,000 years ago.

• The Egyptians mixed their colors with a gummy substance, and applied them separately from each other without any blending or mixture. They appear to have used six colors: white, black, blue, red, yellow, and green. They first covered the area entirely with white, then traced the design in black, leaving out the lights of the ground color.

PARTS OF PAINTBINDERSSOLVENTSPIGMENT AND FILLERADDITIVES

PRIMERSA primer is the performance-improving base coat for paint. Its

job is to hold the finish coats to the surface which prevents the paint from soaking into the surface and causing the

gloss level to flash or cause the top coat to be inconsistent.

PAINT• PIGMENTS: Powders, usually minerals

that impart color but also affect gloss levels.

• BINDERS: Responsible for the toughness of the paint, bind the other ingredients into a film after the diluents “go away”

• DILUENTS: The thinner or carrier that makes the paint liquid enough to spread.

• ADDITIVES: Change the characteristics, making paint viscous, stable, fast-drying, increase “open time” mildew resistant, flame retardant (all of these additives are chemicals and will change the toxicity of the formulas to which they are added)

• EMULSIFIERS: Fuse materials together by breaking down chemical “walls” that keep each ingredient distinct.

GRADESPaint has quality distinctions that affect pricing. Contractor grade is usually a lower price as well as lower quality. Tends to have lower sheen levels than the higher quality paints. Lowers wash ability.

MANUFACTURERSBENJAMIN MOORESHERWIN WILLIAMSGLIDDENVALSPARBEHRRALPH LAURENDUNN-EDWARDS

APPLICATIONS

PLASTER

CONCRETE

WOOD

SUSTAINABILITY

Coatings often emit VOC’s(volatile organic compounds)which reduce indoor air quality(IAQ) Water based finishes generallyemit fewer parts per liter ofknown VOCs but there is more. Need to look at other chemicalsthat are present

SUSTAINABILITYUnused paint must be disposed of properly, preferably taken

to a paint recycling or remanufacturing facility where the paint will become part of a batch that will be used on

someone else’s job. Empty paint cans are to be entirely dry inside before disposing of them. Small amounts of paint

should be left open in a well ventilated place and allowed to dry before being thrown away.

SAFETYPale colors often contain titanium dioxide. This material is dangerous if inhaled. Workers should where masks. Select paint with low or no VOC

formulas when appropriate and consider coatings with as few chemical additives as possible.

Old paint may contain lead.

WEB LINKShttp://paintstore.benjaminmoore.com/stores/u /ma/salem/waters-brown-inc

http://www.benjaminmoore.com/http://www.sherwin-williams.com/homeowners/ask-sherwin-williams/painting/http://www.diynetwork.com/how-to/how-to-paint-a-room/index.html

KEY TERMS• Alkali Burn• Alkyd• Alligatoring• Biocide• Bleed• Bleeding• Block Fillers• Blooming• Chalking• Checking• Commercial/contract

wallcovering

• Companion/correlated wallcovering

• Crocking• Embossed• Epoxy Coatings• Faux Finish• Feathered• Flash • Flocking• Foil• Glaze• Grain rising

KEY TERMS• Ground• Laminated• Lap• Mylar• Prepasted• Pretrimmed• Register• Repeat• Sags• Selvage• Shellac• Sizing

• Stock• Striae• Substrate• Water-modified alkyd

SUMMARYCSI SELECTION: CSI Section 09 91 23: Interior Painting

APPLICATION: Wall covering, different types for different wall types. Wood, concrete, etc...

COST: Ranges from $40 per gallon to $60 pergallon

SPECS: Harmony: LEED certified

Division 9 and 7 finishing guides Standard Specifications Ozone Transport Commission (OTC) Specifications CARB SCAQMD

Occupant health and performance are the key consideration when choosing an interior paint.