OQ-0994 Viscotaq Pipe Wrap Flashcards
(11 cards)
Roughen the adjacent coating approximately blank inches
4 inches
What can you use to roughen the coating?
Sandpaper (120 grit)
Hand or power wire brush
Surface shall be kept clean and free of grease with what?
Isopropyl alcohol (min 90%) or aervoe hand y wipe
What do you use to ensure the surface is free of moisture and dry to the touch?
Dry cloth
What else can you use if the surface is still not dry after using a cloth?
Use a torch or heat gun to dry the surface
What do you do if existing costing is thicker than 70 mils?
Apply one straight full circumference wrap to the bare steel next to the existing coating.
Begin and end on existing coating with a blank inch overlap
4 inch
Continue to wrap at a slight angle with minimum of blank overlap
1/2 inch
When you finish the wrapping the base coating onto the existing coating, no less than blank inches, and with a straight circumference wrap 
4 inches
When doing method 2 start by applying the coating a minimum of blank over the existing coating on either side
4”
When doing method 2 wrap the pipe in a circumference around the pipe ending with a minimum of blank overlap 
1”