Coatings Flashcards
SSPC 5
White Metal Blast NACE 1
NACE 1
White Metal Blast SSPC 5
NACE 2
Near White Blast SSPC 10
SSPC 10
Near White Blast NACE 2
NACE 3
Commercial Blast SSPC 6
SSPC 6
Commercial Blast NACE 3
NACE 8
Industrial Blast SSPC 14
SSPC 14
Industrial Blast NACE 8
NACE 4
Brush-Off Blast SSPC 7
SSPC 7
Brush-Off Blast NACE 4
Prevent contact with the environment
Plating
Restrict contact with the environment
Organic Coatings
Release substance
Galvanizing with Zinc
Eliminate sharp edges and hard to reach areas; provide drainage; remove weld splatter; avoid crevices
Design of surfaces
Clean surface increases adhesion strength; Anchor pattern profile increases surface area;
Surface Preparation
Surface Prep Methods
Abrasive Cleaning; Solvent Wipe-Off; Steam; Flame; Hot Water; Pickling; Mechanical Methods
Glue that holds the coating together
Binders (Resins)
Powders that improve properties
Pigments
Thinning
Solvents
Primer Function
Adhesion to the substrate
Intermediate Function
Barrier to moisture vapor transmission
Topcoat Function
Weather resistance
Application Concerns
Atmospheric conditions must be compatible; Temperature must be sufficient for cure; Contamination from the air must be controlled; Materials must be stored, mixed and thinned correctly
Film Thickness formula
Gallons X %Solids X 1604 divided by Feet sqd
