Important ones! Flashcards
Chlorinated rubber
Evaporation cure
Acrylics
Coalescence cure
Alkyds
Oxidative cure
What is the overall NACE standard for water jetting surface cleanliness?
NACE no. 5/SSPC SP12
Which standard addresses design, fabrication, and surface finish?
NACE SP0178
Which standard is for the fabrication defects, surface finish requirements, and proper design considerations?
NACE SP0178
what is the standard for a white metal blast?
NACE no. 1/ SSPC SP 5
Which standard is for near white metal blast?
NACE no. 2/ SSPC-SP10
Which standard is for a commercial blast?
NACE no. 3/ SSPC SP-6
Which standard is for brush blasting?
NACE no. 4/ SSPC-SP 7
What is the overall standard for international surface cleanliness?
ISO 8501
From cleanest to least clean, list the SSPC equivalents to the individual NACE blasting standards
SP 5
SP 10
SP 6
SP 7
What is the range for coarse replica tape?
0.8-2.0 mils
What is the range for extra coarse replica tape?
1.5-4.5 mils
True or false?
Adding a thinner is a good solution in low temp. coating application.
False
Heat the coating to recommended temp.
Should an airless spray unit be used in inorganic zinc coatings?
No.
Amine blushing is cause by what?
Cool ambient temperatures
dropping temperatures
high humidity.
Blistering is caused by what?
Loss of adhesion
Chemically cured coatings are prone to what type of failure when applied too heavily?
Cracking
True or false?
-aspartoc coatings are low VOC.
True
True/false: -ester coatings are: High build Quick cure Highly resistant Widely used (salt/fresh water service) Often used for walkways
True
This type of coating is aromatic or aliphatic, can be toxic because of isocyanates, and is sensitive to moisture during and just after application.
Polyurethane
These coatings cures very quickly, does not bond well 2 itself, and is used for coating concrete.
Polyureas
-ureas and -urethanes are how many component systems?
2
This coating has effective resistance to acids and solvents and can usually be applied in thick coats.
Vinylesters
This coating was often a topcoat for IOZ, but has been banned in most countries because of high VOC’s.
Vinyl
These coatings should only be applied to a blast cleaned surface, have high heat resistance, and provide cathodic protection.
IOZ
T/F:
Organic zinc can be applied in a single coat system.
False