High-Build Coatings Washington DC

High-build coatings are much more than paint over concrete block or other concrete surfaces in Washington. They are high-tech products characterized by properties such as resistance to wind-driven rain, chalking and checking after weathering, high ultimate (breaking) elongation, elongation recovery and crack bridging capability, and water vapor permeability.

Dawson'S Brickwork
(703) 528-6787
1324 N Stuart St
Arlington, VA
 
Winston'S Air Duct Cleaning Inc
(703) 379-5006
4800 King St
Arlington, VA
 
O Reilly Masonry
(703) 841-7233
5201 5th St N
Arlington, VA
 
A Step In Time Chimney Cleaners & Repair Is 800-Fireman
(703) 237-4545
6700 Lee Hwy
Arlington, VA
 
Boyd D L
(703) 241-2060
6700 Lee Hwy
Arlington, VA
 
Manganaro Mid Atlantic
(703) 243-0026
1301 N Troy St
Arlington, VA
 
Williams John T Assoc Inc
(703) 892-2929
1611 S Walter Reed Dr Ste 102
Arlington, VA
 
Winston'S Of Northern Virginia
(703) 379-5006
2701 S Oakland St Ste C
Arlington, VA
 
R M Thornton Inc
(301) 350-5000
120 West Hampton Avenue
Capitol Heights, MA
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(240) 723-3632
1911 laguna rd
adelphi, MD
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High-Build Coatings

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Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: May 1, 2007

By Lorella Angelini

High-build coatings are much more than paint over concrete block or other concrete surfaces. They are high-tech products characterized by properties such as resistance to wind-driven rain, chalking and checking after weathering, high ultimate (breaking) elongation, elongation recovery and crack bridging capability, and water vapor permeability.

This article focuses on the benefits in using high-build coatings as surface treatments over concrete, points out their unique performance properties, and explains applicable ASTM test methods.

Coatings vs. paints
Graph illustrates the relationship between temperature and thickness, with the thin elastomeric coating breaking at the maximum crack extension in cold temperatures.

At a glance, acrylic high-build coatings are often mistaken for ordinary paints. They come in a pail, are applied on the wall by roll or spray, and are available in a variety of colors, either directly from the factory or tinted at the local distributor. However, the similarities end here.

High-build coatings are generally applied in one or two coats to a total dry film of 10 mils to 15 mils, while ordinary paints have average thicknesses from 3 mils to 5 mils. The difference in thickness is directly related to the viscosity of the two materials and their percent of solids. High-build coatings contain about 50% solids by volume, versus 30% for ordinary products.

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