(e) Pour the remaining silicone rubber on the brushed surface until it is 1/4 inch thick. Let it cure at room temperature for 48 hours.
NOTE: One pound of prepared silicone rubber will make a
____ 10-inch-by-10-inch-by-1/4-inch replica.
(f) When the silicone is dry, remove the embossing pad from the surface.
S 348-059
(4)
Apply the silk screen inks of the correct color to the repair surface.
S 348-060
(5)
Let it dry for 15 minutes.
S 348-061
(6)
Apply the silicone embossing pad to the repaired surface.
S 348-062
(7)
Apply a vacuum of approximately 10 inches of mercury at 160
degrees F.
S 348-063
(8)
If the above procedure is not satisfactory, replace the decorative laminate.
J. Apply Flexible Decorative Tedlar (Non-acoustical)
NOTE: If it is necessary, repair the panel before you apply the tedlar.
____ S 038-064
(1)
Remove the trim strips from the panel.
S 348-065
(2)
Rub the area where you will apply the adhesive with abrasive paper until the area is not glossy.
S 118-066
(3)
Clean the area with a cheesecloth that is moist with naphtha.
(4)
Dry the area with a clean cheesecloth.
S 348-068
(5)
Mix 16 parts (by volume) of BMS 5-127 adhesive with one part Boscodur 24.
(6)
Let the mixture set for two minutes.
S 118-067
S 348-069
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MAINTENANCE MANUAL
S 118-070
WARNING:_______ DO NOT GET SOLVENTS IN YOUR MOUTH, OR YOUR EYES, OR ON YOUR
SKIN. DO NOT BREATHE THE FUMES FROM SOLVENTS. SOLVENTS ARE
HAZARDOUS MATERIALS. REFER TO PRODUCT MATERIAL SAFETY DATA
SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING
PROCEDURES.
(7)
If you want to spray the adhesive mixture, mix (by volume) one part adhesive mixture with one part MEK.
S 348-071
(8)
Carefully spray the mixture or apply the mixture to the surface with a brush.
S 378-072 CAUTION: THE SURFACE MUST BE FULLY DRY BEFORE YOU INSTALL THE TEDLAR
_______ LAMINATE. IF YOU INSTALL THE TEDLAR LAMINATE TO A WET SURFACE, YOU WILL NOT GET A SATISFACTORY BOND.
(9) Let the surface dry at room temperature for a minimum of 2 hours.
S 208-073 CAUTION: MAKE SURE THE DECORATIVE TEDLAR LAMINATE HAS THE CORRECT
_______ COLOR AND PATTERN. THE REPAIR WILL NOT BE SATISFACTORY IF THE NEW TEDLAR LAMINATE IS NOT CORRECT.
(10) Put the decorative tedlar laminate in position. NOTE: Use masking tape to hold the decorative tedlar laminate in
____ the correct position.
S 888-074 CAUTION: BE CAREFUL WHEN YOU APPLY HEAT NEAR MATERIALS THAT CAN BURN.
_______ THE TEMPERATURE OF THE TEDLAR MUST NEVER BE MORE THAN 200°F OR THE TEMPERATURE AT WHICH THE TEDLAR DISTORTS, WHICHEVER IS LOWER. TOO MUCH HEAT CAN CAUSE DAMAGE TO THE TEDLAR.
(11) Use the heat gun to increase the temperature of the tedlar laminate. NOTE: Be careful to make sure the temperature is constant across
____ the surface of the laminate. Refer to AMM 20-10-26/201 for cautions to obey when you use heat guns.
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757 MAINTENANCE MANUAL
S 348-075
(12) Do these steps to use a vacuum to make sure the laminate touches all of the panel:
(a)
Use the maximum vacuum possible that will not cause damage to the panel.
(b)
Let the laminate cure for 24 hours at room temperature, for two hours at 120 degrees F, or for 30 minutes at 180 degrees F.
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