SOLUTIONS GUARANTEE A+ 2025
NACE WJ-1 - Waterjet Cleaning of Metals - Clean to Bare Substrate. Free of all visible
contaminants.
NACE WJ-2 - Waterjet Cleaning of Metals - Very Thorough Cleaning. Staining should
not consist of more than 5%.
NACE WJ-3 - Waterjet Cleaning of Metals - Thorough Cleaning. Should not consist of
more than 33% of contaminants.
NACE WJ-4 - Waterjet Cleaning of Metals - Light Cleaning
Specifier and contractor must agree - On the test method and determining non-visible
contaminants
Common resins used in lining our - . Polyester.
. Epoxy.
. Vinylester.
anti-fouling paint - A paint specially formulated to prevent the attachment and growth of
marine life
What are the three main types of antifouling paint - . ablative - binder slowly dissolves in
seed water, constantly presenting a fresh layer of copper on the surface.
. Self smoothing - similar to ablative rate is controlled surface becomes smoother.
. Foul release - nonstick surface.
What are antifouling inspection concerns - . Film thickness of each coat is very
important.
. Overspray on topcoat surface roughness.
. Does not adhere well to cured epoxy
The most commonly used test for industrial and marine fireproofing material is? - U.L.
1709 Rapid rise, fire test protection materials for structural steel.
What are the two main types of fireproofing coding? - . Cementitious - lightweight
concrete.
. intumescent - sense it swells or bubbles up and result of exposure to heat.
What are the two curing categories for powder coating? - Thermoplastic. Materials that
soften when heated and returned to their original hardness when cold.
Thermosetting. Mate at Harden when heated and retain their hardness when cooled.
What are the four distinct stages of powder coating? - Flow