KTU, Finishes and Topcoats

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Author:
mezayinc
ID:
271811
Filename:
KTU, Finishes and Topcoats
Updated:
2014-04-24 22:55:13
Tags:
KTU
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Description:
finish product study cards
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  1. Finishes are alchemy, the products are created from science by...
    companies like Dow, DuPont, and Union Carbide
  2. Old world finishes were not necessarily time-honored and proven... Although some say synthetic lacquers or polyurethane are inferior, modern, cheap, alternatives. True or False.
    False, although "this wood was finished with hand-rubbed Tung Oil" sounds better than "this wood was finished with two coats of polyurethane.
  3. All finishes are made up of _______ & _______.
    Percentage of solids, Percentage of solvents
  4. The higher the _______, the slower the drying/curing time. The higher the _______, the faster the drying/curing time.
    percentage of solids. percentage of solvents
  5. Most of the finishes used in a tuneup are_______ and ________.
    High in solvents, low in solids. This makes touchup and blending easier.
  6. What is the perfect finish?
    There is not one perfect finish. There is a wide variety of finishes for a wide variety of uses, we have tried to find the highest quality finishes available that meet our needs in the tune-up process.
  7. Why do we finish wood?
    • The hydroscopic nature of wood is greatly magnified when wood is left unfinished.
    • Since wood is so porous, without a finish it is especially prone to take on grease, dirt, and other contaminants.
    • Without a finish, wood will split, warp, and crack.
    • Finish brings out and preserves the natural beauty, color, and grain of the wood.
    • Sheen levels add depth to the appearance of the wood.
  8. What is the basic rule of thumb regarding polishes and finishes?
    Polishes act as contaminates for finishes. They do not mix. Make sure the previous coats of finish are fully dried and/or evaporated prior to applying a second coat.
  9. Rule to remember when working with finishes...
    similar types of coating products create the strongest bond. I.E. if you are working on a piece with a lacquer finish, you will achieve the best result by touching up the finish with a lacquer.
  10. When using Lacquer as a topcoat, if you apply over scratch cover ...
    the finish will not adhere
  11. When using Lacquer as a topcoat, if you apply over waxwash ...
    the finish will show blushing. may show in a couple hours or 2-3 days
  12. When using Lacquer as a topcoat, if you apply over wiping stains - wet ...
    it will usually blush within a few minutes
  13. When using Lacquer as a topcoat, if you apply over KTU All purpose cleaner that hasn't dried ...
    it will blush after a while
  14. When using Lacquer as a topcoat, if you apply over Finish-up ...
    it will wrinkle Finish-up after 2-3 days. although you can spray dust coats over it.
  15. When using Lacquer as a topcoat, if you apply Master-gel ...
    it may wrinkle
  16. When using Finish-up as a topcoat, if you apply over scratch cover ...
    The finish will not adhere
  17. When using Finish-up as a topcoat, if you apply over Wax Wash...
    it may blush
  18. When using Finish-up as a topcoat, if you apply over wiping stains - wet...
    it may blush in a few minutes or could take 2-3 days
  19. When using Finish-up as a topcoat, if you apply over KTU All Purpose Cleaner (Not allowed to dry)...
    it may blush and streak
  20. When using Finish-up as a topcoat, if you apply over Master-Gel...
    it will have no effect. Although should scuff sand, and Master-Gel should be cured
  21. When using Finish-up as a topcoat, if you apply over Shellac...
    it will have no effect. Although should scuff sand
  22. When using Master-Gel as a topcoat, if you apply over scratch cover...
    Finish will not adhere.
  23. When using Master-Gel as a topcoat, if you apply over Wax Wash...
    it may blush
  24. When using Master-Gel as a topcoat, if you apply over wiping stains - wet...
    it may wrinkle and have poor adhesion
  25. When using Master-Gel as a topcoat, if you apply over KTU All purpose cleaner(not allowed to dry)...
    it may blush
  26. When using Master-Gel as a topcoat, if you apply over Finish-up...
    it may wrinkle Finish-up and have poor adhesion
  27. When using Master-Gel as a topcoat, if you apply over clear lacquer (dry)...
    no effect - should scuff sand
  28. When using Master-Gel as a topcoat, if you apply over Shellac...
    No effect - should scuff sand
  29. When using Wiping Stain as a topcoat, if you apply over Scratch cover...
    do not use
  30. When using Wiping Stain as a topcoat, if you apply over KTU all purpose cleaner (wet)
    no recommended
  31. When using Wiping Stain as a topcoat, if you apply over finish-up...
    Will wrinkle the Finish-up
  32. When using Wiping Stain as a topcoat, if you apply over clear lacquer (dry)...
    has no effect as long as it's dry
  33. When using Wiping Stain as a topcoat, if you apply over Master-Gel...
    it could wrinkle and affect adhesion
  34. When using Wiping Stain as a topcoat, if you apply over a painted finish...
    it could wrinkle
  35. When using Wiping Stain as a topcoat, if you apply over water based products...
    it could wrinkle
  36. When using Lacquer as a topcoat, if you apply over a painted finish...
    it may wrinkle and add amber color
  37. When using Lacquer as a topcoat, if you apply over Water based products...
    it may wrinkle
  38. When using Lacquer as a topcoat, if you apply over KTU oil...
    the finish may fish-eye and will not adhere
  39. When using finish-up as a topcoat, if you apply over KTU oil...
    the finish will not adhere
  40. When using Master-gel as a topcoat, if you apply over KTU Oil...
    the finish will not adhere.
  41. In the case of Lacquer blushing, what can you do to reflow the lacquer and remove the blush?
    spray No blush, or another coat of lacquer to remove the blush. OR after drying, you can use steel wool to lightly remove the blush. Then topcoat again.
  42. Where does Shellac come from?
    it is a natural occurring compound originating from the excretion of an insect called the "lac" beetle. The excretion is scraped from branches, formed into sheets and processed into flakes for shipping.
  43. How do you turn shellac flakes into a usable substance?
    Dissolve shellac flakes in denatured alcohol to create the liquid form that allows application.
  44. _____ ______ creates a long lasting, non-yellowing, strong barrier for wood surfaces.
    Acrylic lacquer
  45. Lacquer is a synthetic product produced from _____ ______.
    renewable cottonseeds
  46. Benefits of lacquer over shellac...
    possible for production in large quantities, more resistant to heat, water, and alcohol.
  47. Acrylic lacquers are found in the follow form (in KTU supplies)...
    • Quick Tip Marker
    • Aerosol Lacquer Toners
    • Aerosol Ultra Flo Clear Lacquers
    • Acrylic lacquer
    • catalyzed lacquer
    • nitrocellulose lacquer
    • sanding sealer
  48. What are the two types of lacquers...
    nitrocellulose and cellulose acetate butyrate sometimes called CAB, water-white, or butyrate.
  49. What are our two sheen levels found in Nitrocellulose Lacquer under the Mohawk label...
    Satin, and Gloss
  50. How is nitrocellulose lacquer produced?
    by treating the fibers of cotton or wood with nitric and sulphuric acid, giving this finish its fast drying properties.
  51. What is found in nitrocellulose lacquer to provide needed flexibility  of the finish?
    plasticizers. they are also capable of almost endless thinning. which also makes it a very forgiving level of application difficulty.
  52. Which has a higher resin to solvent ratio, nitrocellulose lacquer or pre-catalyzed lacquer?
    Nitrocellulose lacquer has a higher resin to solvent ratio. It is an excellent  product for locking in color following a touchup repair.
  53. What are some unique properties found with nitrocellulose lacquer?
    • high resin to solvent ratio
    • excellent for locking in color
    • able to blend and reflow or melt into previous layers

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