TS-631 COATINGS EVALUATION AND MAINTENANCE

Question 1

__________ - Exterior coatings normally gather dirt and become increasingly soiled.

(Types of deterioration and failure)

Answer 1

Soiling

Question 2

Where is the TS-631 Coatings Evaluation and Maintenance Manual located?

Answer 2

SFLC page - quick links - SFLC Directives Library - Technical Standards - TS-631.

Question 3

________- glossy paints lose their gloss and eventually turn flat with age. This is a sign of initial breakdown of the vehicle at the surface of the paint.

(Types of deterioration and failure)

Answer 3

Flatting

Question 4

_________- is the result of weathering of the paint at the surface of the coating. The vehicle is broken down by sunlight and other destructive influences, leaving loose, powdery pigment at the surface that can easily be rubbed off with the fingers.
(Types of deterioration and failures)

Answer 4

Chalking

Question 5

________________- describes breaks in the paint film, formed as the paint becomes hard and brittle.

(Types of deterioration and failure)

Answer 5

Checking and Cracking

Question 6

______________- described as tiny breaks that take place only in the upper coat or coats of the paint film without penetrating to the substrate.

Answer 6

Checking

Question 7

___________- Describes larger and longer breaks that extend through to the substrate.

(Types of deterioration and failure)

Answer 7

Cracking

Question 8

____________- appears in the paint film when the topcoats lift from the base, leaving the prime coat intact. The condition is most frequently the result of moisture being absorbed by wood.
(Types of deterioration and failure)

Answer 8

Blistering

Question 9

____________- water-soluble salts which dissolve in moisture carried through the substrate and then crystallize on the exposed surface. (Atmospheric salt residues)

(Types of deterioration and failure)

Answer 9

Efflorescence

Question 10

What tool is used for removing tight rust, mill scale, and heavy paint coats?

Answer 10

Chipping hammer

Question 11

_______ and _______ scalers are used for removing rust, mill scale, and oil paint from large metallic and Masonry areas?

Answer 11

Rotary and needle scalers

Question 12

What is used to remove loose mill scale, old paint, weld flux, slag, and dirt deposits?

Answer 12

Wire brush

Question 13

_______ and _______ are used for complete removal of old paint, rust or mill scale on small surfaces and for smoothing rush services.

Answer 13

Grinders and sanders

Question 14

Low pressure water cleaning is performed at pressures less than __________ psi, and is used prior to, or after other surface preparation, cleaning methods to help her move salt and contaminants from the service.

Answer 14

5,000 psi

Question 15

High pressure water cleaning is performed at pressures from __________ to ___________ psi and is used to remove surface, contaminants, light, marine, fowling, loose, paint, and mild chalking or dusting.

Answer 15

5,000 to 10,000 psi

Question 16

High-pressure water jetting is performed at pressures __________ to ___________ psi, and is used to remove loose paint, loose rest, and mil scale.

Answer 16

10,000 to 30,000 psi

Question 17

The use of water at pressures less than 10,000 psi is referred to as water _________.

Answer 17

Cleaning

Question 18

When using paint stripper on aluminum, allow the remover to dwell ____ to ____ minutes until the coating blisters. Use a plastic or wood scraper to complete the removal without scratching the aluminum.

Answer 18

10 to 20 minutes

Question 19

Epoxy - epoxy vehicles are made up of two components that are premix before use: an epoxy _______, and a polyamide ________.

Answer 19

Resin and hardener

Question 20

________ paints are based on water emulsions of three basic types of polymers: polyvinyl, acetate, polyacrylic and polystyrene-butadiene. They dry by evaporation of water, followed by coalescence of the polymer particles to form tough insoluble films.

Answer 20

Latex

Question 21

_______ oil is the major vehicle in oil house paints. These pants are the oldest type of coatings in use and have the longest history of performance.

Answer 21

Linseed

Question 22

_________ paints are used as top coats on metal for extremely humid environments and as primers for fresh water immersion

Answer 22

Phenolic

Question 23

Heat resistant organic finishes, containing a high concentration of silicone resins, when pigmented with aluminum have the ability to withstand temperatures up to __________ degrees Fahrenheit

Answer 23

1200 degrees

Question 24

All paint materials should be placed in the paint shop, at least ______ hours before use in order to bring the temperatures between 65°F and 85°F.

Answer 24

24 hours

Question 25

____________ is a mixing procedure where a material is repeatedly poured back-and-forth between two containers.

Answer 25

Boxing

Question 26

Multi component coatings particularly epoxy’s, require a period of time after mixing for critical chemical reaction to initiate prior to application. This is called induction time. Many commercial high build epoxies will have induction times of ____ to ____ minutes.

Answer 26

15 to 30 minutes

Question 27

Brushes with synthetic bristles should have “_______” ends to assure smooth application of paint.

Answer 27

Flag

Question 28

________ are thick at the butt end and taper to the flag or splayed end.

“ bristle types”

Answer 28

Natural bristles

Question 29

The _________ of the handle holds the bristles in the proper formation

Answer 29

Setting

Question 30

The _________, which is the connecting link between the handle and the stock (bristles), must be correctly and sturdily constructed so the handle, and the stock will not come apart.

Answer 30

Ferrule

Question 31

The ________ is the working part of the brush, and generally contains natural or synthetic bristles.

Answer 31

Stock

Question 32

_____________ have a narrow rectangular cross-section. They are available in widths of 2 inch to 5 inch. The bristles vary in length according to the width of the brush. The four-inch brush with 4 1/2 inch Bristles is suitable for mini kinds of general painting.

Answer 32

Flat wall brushes

Question 33

__________________________ - These brushes are available in 2 1/2 inch 3 inch and 3 1/2 inch sizes and are suitable for general painting in varnishing. ______ brush is mainly for heavy duty Finish work. The ______ brush style is used for fine painting and varnishing work. These brushes pick up and retain Moore paint or varnish and flat tire brushes.

Answer 33

Oval and semi oval
paint and varnish brushes

Question 34

__________ these brushes come in sizes from 1 1/2” to 4 inch. They provide smooth application of varnish and enamel and are used for a wide variety of purposes.

Answer 34

Flat varnish and enameling brushes

Question 35

When painting, dip only ______ the bristles enter the paint.

Answer 35

Half

Question 36

“_____” is the thickness of the cover, and generally a thin ____ is used on smooth surfaces, and a thick ____ is used on rough surfaces.
“Roller cover materials”

Answer 36

Nap

Question 37

“__________”- blends of wool rayon and _______ (angora goats wool) are considered _______ covers. This type of cover is recommended for applying enamels to smooth surfaces.
“Roller cover materials”

Answer 37

Mohair

Question 38

This is one of the original materials employed for roller covers and is widely used. It maintains its resilience and carries a greater amount of paint and many other fabrics and is recommended and longer nap sizes for painting, cycling type and other wire fences.
“Roller cover materials”

Answer 38

Lambs wool

Question 39

Fibers such as Dynell and Dacron are available for covers and can be generally used except for coatings containing alcohols and ketones.
“roller cover materials”

Answer 39

Synthetic covers

Question 40

Conventional air spray, uses compressed air at pressures between ____ and ____ psi to atomize the paint at the nozzle of the gun, and to feed the paint under pressure from the supply tank pump or cup to the gun nozzle.

Answer 40

40 and 70 psi

Question 41

HVLP (high volume low pressure) spray reduces the overspray problems, encountered with conventional air spraying by atomizing the paint with a high volume of air at lower pressures.
(____ to ____ psi)

Answer 41

0.1 to 10 psi

Question 42

“_____________” describes a painted surface that has dried with a pebbled texture.

Answer 42

Orange peel

Question 43

The iron phosphate solutions, deoxidize rusted metal, removing the rust stain and prevent continued oxidation for up to ____ days.

Answer 43

90 days

Question 44

Where is the paint record kept on a Cutter?

Answer 44

Hull History