(i)
Apply the Tec 361 etchant on the surface.
NOTE: Do not apply the Tec 361 on anodized aluminum surfaces.
____
(j)
Keep the surface wet with the Tec 361 etchant for 5 to 6 minutes. Then dry the surface with a clean dry cheesecloth.
(k)
Immediately flush the surface with water while you rub the surface with a clean cheesecloth.
NOTE: Be careful when you flush the seams and joints on the
____ surface.
(l)
Dry the surface with a clean dry cheesecloth.
(m)
Use a vacuum cleaner to remove all the remaining liquids from the seams and lap joints.
(n)
Apply Alodine 1000 on the surface (AMM 51-21-04/701).
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S 107-018
(2) Do these steps to prepare painted surfaces:
(a)
Manually clean the surface with Toluene.
(b)
Rub the surface with 320-grit (minimum) aluminum oxide paper.
(c)
Manually clean the surface again with MIBK.
S 107-019
(3) To prepare plastic laminate surfaces refer to the cleaning/painting procedures on plastic laminate surfaces (AMM 51-21-02/701).
E. Procedure - Apply Abrasion-Resistant Teflon Coating
S 957-010
(1)
Apply masking tape to all near by areas that you do not want to be coated with abrasion-resistant teflon coating.
S 167-020
(2)
Clean all the equipment and containers that you will use.
S 377-021
(3)
Do these steps to apply the abrasion-resistant teflon coating with a spray gun:
(a) Mix and apply one layer of BMS 10-11, Type 1 Primer (AMM 51-24-11/701).
WARNING: DO NOT GET THE TEFLON FINISH IN YOUR MOUTH, IN YOUR EYES,
_______ ON YOUR SKIN, OR ON YOUR CLOTHES. DO NOT BREATHE THE FUMES FROM THIS MATERIAL. MAKE SURE THE AIR FLOWS FREELY THROUGH THE WORK AREA. USE THE NECESSARY RESPIRATORY PROTECTION. KEEP THIS MATERIAL AWAY FROM SPARKS, FLAME, AND HEAT. THIS MATERIAL IS POISONOUS AND FLAMMABLE AND CAN CAUSE INJURY OR DAMAGE.
(b) Mix the abrasion-resistant coating as follows:
1) Add 3 parts (by volume) of the resin component 7-W-27 or 7-X-74 to 1 part (by volume) of the hardener 10-C-81.
NOTE: The abrasion-resistant coating is supplied in a kit.
____ The kit has a resin component, 7-W-27 (white) or 7-X-74 (grey), and a hardener, 10-C-81.
2) Manually mix the components.
NOTE:____Do not shake the mixture. You will get air bubbles if you shake the mixture. Air bubbles will make a unsatisfactory coating.
3) If it is necessary, add 1 part (by volume) of 66-C-28 reducer to 3 parts (by volume) of the mixture. 4) Be careful not to shake the mixture. Always mix the mixture manually.
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5) Let the mixture stay for a minimum of 5 minutes before it is used. 6) Make sure you use the mixture before the pot life is complete.
NOTE: At a temperature of 70°F, the mixture has a pot life
____ of 1-1/2 hours. The pot life decreases by one half for each increase of 20°F in temperature. Do not use the mixture if the pot life has ended. Mix the correct quantity of mixture.
(c) Apply the abrasion-resistant teflon coating.
NOTE: If no dry thickness is specified, apply 5 to 10 mils
____ (0.005 to 0.010 inch) of the abrasion-resistant teflon coating.
If it is not easy to apply the abrasion-resistant teflon coating with a spray gun, you can use a brush.
(d)
Let the coating dry for 5 to 10 minutes before you apply the next layer.
(e)
Before you touch the surface or part, let the coating dry for 2 hours at 70 |5°F.
(f)
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