1)  Do not use force to apply the paint stripper on the primer. Lightly apply a thick layer of the paint stripper on the area.

 (b)  
Permit sufficient time to loosen the primer (20 minutes to 1 hour).

 (c)  
When the primer is loose, rub the area fully with a rigid bristle brush.

 (d)  
Clean the area with a solvent mixture (1:1 by volume) of toluene and methyl ethyl ketone.

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737-300/400/500MAINTENANCE MANUAL
 ~............................................................................. | REMOVE | | | | | | | THESE | PERMITTED | PROCEDURES | | | | | TYPE OF | METAL | TO APPLY | TYPE OF | PERMITTED | TEMPERATURE | | FINISH | SUBSTRATES | THE STRIPPER | STRIPPER | STRIPPER | (°F) | ............................................................................... |PRIMERS, | ALL | WIPE OR | SOLVENT |BUTYL CELL- | ROOM | |WAX,OVER | | SQUIRT-ON | | OSOLVE, | | |SPRAY,AND| | | |METHYL | (NOT MORE | |TEMPORARY| | | |ISOBUTYL | THAN 90°F) | |COATINGS | | | |KETONE | | | | | | |ETHYL ALCO- | | | | | | |HOL, XYLENE,| | | | | | |TOLUENE, | | | | | | |TURCO 800 | | ...............................................................................
 |ALL  | DOES NOT  |  SPRAY ON  |SOLVENT  |  CEE BEE  |  50-100°F  |
 |FINISHES | INCLUDE  |  BRUSH-ON  |NON- |  A-306B  |  OPTIMUM  |
 |  | STEEL HEAT- |  |PHENOLIC  |  |  65-800°F  |
 |  | TREATED MORE|  |NON- |  |  |
 |  | THAN 220 KSI|  |CHROMATED  |  |  |
 |  |  |  |  |  |  |
 |  |  |  |SOLVENT  |  TURCO  |  |
 |  |  |  |NON- |  5878  |  50-100F  |
 |  |  |  |PHENOLIC  |  |  OPTIMUM  |
 |  |  |  |CHROMATED  |PENNWALT  |  65-80°F  |
 |  |  |  |  |EZ STRIP 19E|  |

 ............................................................................... |ADHESIVES| ALUMINUM | SPRAY ON | SOLVENT |ALCOR LO-| 50-100°F | | *[1] | | BRUSH-ON | |2030M FIBER-| OPTIMUM | | | | | |RESIN ES1 | 65-80°F | | | | | |TURCO 5351 | | | | | | | (THIN) | | ............................................................................... | *[2] | DOES NOT | SPRAY OR | SOLVENT |TURCO 5292B | 50-100°F | | | INCLUDE | BRUSH-ON | |TURCO 5351 | OPTIMUM | | | STEEL HEAT- | | | (THICK)| 65-80°F | | | TREATED MORE| | | | | | | THAN 220 KSI| | | | | ............................................................................... |DOES NOT | ALL | SPRAY OR | SOLVENT |TURCO 5292B | 50-100°F | |INCLUDE | | BRUSH-ON | |CEE BEE | OPTIMUM | |*[1] AND | | | |A-228-D | 65-80°F | |*[2] | | | |TURCO 5351 | | | | | | | (THICK)| | 2.........….............…..............…...........…............….............1
 *[1] EPON 933, EPON 9303, BMS 5-42, 5-51, 5-70, 5-80, 5-89
 *[2] BMS 10-53, 10-39; EPOXY PRIMER, EPOXIES, POLYURETHANES
 TABLE I
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 Composite Substrates: S 157-015-B00
 (2)  Use 150 grit or finer sand paper for removal of enamel or topcoat.
 Abrade topcoat evenly down to primer surface.
 NOTE:____ It is not necessary to remove primers for the application of
 primer, enamels, or topcoat.
 S 157-016-B00
 (3)  Abrade and feather primer and enamel coatings using 240 grit or
 finer sandpaper.
 NOTE:____ Do not damage the fiber of the composite substrate.
 S 157-017-B00
 (4)  If substrate has a conductive coating, sand off all coating in area
 to be repainted to obtain uniform conductivity after touch-up.
　
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