Application Of Liquid Safety Walk Compound; Surface Preparation For Pressure Sensitive Safety Walk; 1H13 - Piper Navajo PA-31 Service Manual

PIPER NAVAJO SERVICE MANUAL
4-104. APPLICATION OF LIQUID SAFETY WALK COMPOUND. .Liquid safety walk compound shall
be applied in an area, free of moisture for a period of 24 hours minimum after application. Do not apply when
surface to be coated is below 50
°
F. Apply liquid safety walk compound as follows:
a. Mix and thin the liquid safety walk compound in accordance with the manufacturer's instructions on
the container.
b. Coat the specified surfaces with a smooth, unbroken film of the liquid safety walk compound. A nap
type roller or a stiff bristle brush is recommended. using fore and aft strokes.
c. Allow the coating to dry for 15 minutes to one hour before recoating or touch-up: if required after
application of the initial coating.
d. After recoating or touch-up. if done, allow the coating to dry for 15 minutes to one hour before
removing masking.
NOTE
The coated surface shall not be walked on for six hours minimum
after application of final coating.
4-105. SURFACE PREPARATION FOR PRESSURE SENSITIVE SAFETY WALK. The areas to which
the pressure sensitive safety walk is to be installed must be free from all contaminates and no moisture present.
If liquid safety walk is installed the area must be prepared as follows:
a. Area must be masked off to protect painted surfaces.
b. Apply suitable stripper MEK Federal Spec. TT-M-261, U.S. Rubber No. 3339 to wingwalk
compound. As compound softens remove by using putty knife or other suitable tool.
c. Area must be clean and dry prior to painting.
d. Prime and paint area.
NOTE
Newly painted surfaces, shall be allowed to dry for 2.5 hours
minimum prior to the application of the safety walk.
4-106. APPLICATION OF PRESSURE SENSITIVE SAFETY WALK. Wipe area with a clean dry cloth
to insure that no moisture remains on surface. Do not apply when surface temperature is below 50
°
F. Apply
pressure sensitive safety walk as follows:
a. Peel back the full width of the protective liner approximately 2 inches from the leading edge of the
safety walk.
b. Apply the safety walk to the wing area. begin at the leading edge. insure proper alignment and
position from wing lap.
c. Remove the remaining protective liner as the safety walk is being applied from front to back of wing
area.
d. Roll firmly with a long handled cylindrical brush in both lengthwise directions. Make sure all edges
adhere to the wing skin.
e. Install and rivet leading edge retainer.
Added: 9/23/80
STRUCTURES
1H13