S 378-138

 (23)
 Apply silk screen ink of the correct color to match the adjacent area.

 (24)
 Let the ink dry.

 S 378-139
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 S 348-140
 (25) Drill holes to make perforations if it is necessary.
 NOTE: Use a piece of perforated material for a template.

____
 G.  Apply Decorative Tedlar to Acoustical (Perforated) Panels S 288-141
 (1)  
Remove the trim strips from the panel.
 S 348-142

 (2)  
Rub the area where you will apply the adhesive with abrasive paper until the area is not glossy.

 S 118-143

 (3)  
Clean the area with a cheesecloth that is moist with naphtha. S 118-144

 (4)  
Dry the area with a clean cheesecloth.

 S 118-145 WARNING: DO NOT GET SOLVENTS IN YOUR MOUTH, OR YOUR EYES, OR ON YOUR
_______ SKIN. DO NOT BREATHE THE FUMES FROM SOLVENTS. SOLVENTS ARE HAZARDIUS MATERIALS. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
 (5)  
Mix (by volume) one part BMS 5-30 adhesive with one part MEK. S 348-146

 (6)  
Carefully apply the mixture to the surface with a brush.

 S 378-147 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.
 (7)  Let the surface dry at room temperature for a minimum of 2 hours.
 S 208-148 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.
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 (8)  Put the decorative tedlar laminate in position.
 NOTE: Use masking tape to hold the decorative tedlar laminate in
____ the correct position. If you use perforated tedlar for the repair, align the holes in the tedlar with the holes in the panel you will cover.
 S 888-149
 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.
 (9)  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.
 S 348-150
 (10) 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)  
Cure the laminate for 24 hours at room temperature, for two hours at 120 degrees F, or for 30 minutes at 180 degrees F.

 S 018-191
 (11) Let the part cool to 90 degrees F before you remove the vacuum pressure.
 TASK 25-00-00-308-151
 7. Repair Polycarbonate (Lexan), ULTEM, and Declar Plastics
________________________________________________________
 A. General
 (1)  The paragraphs that follow give instructions to repair cracks and gouges in decorative and nondecorative plastics.
 NOTE: Make sure the area you want to repair is smaller than 100
____ square inches. If the area is larger than 100 square inches, you must replace the part.
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