User Guide

Technical Bulletin
Polyurethane Protective Tape
- 3 -
Step 1: Make sure hands are clean and free of oils
and grease. Clean the radome/part and the boot (top
side and bottom side) with 3M™ Protective Tape
Application Solution to remove the talcum powder.
This will ensure maximum adhesion.
Note: Use a clean, lint-free, silicone-free cloth or
cheese cloth. Do not use shop rags as they might be
contaminated with silicones.
Step 3: Position the boot over the radome/part
(adhesive/white liner side down against radome/part).
Measure from the bottom of the boot and the base of
the radome/part to ensure it is centered and properly
positioned.
Step 5: Remove the boot from the radome/part and
turn the boot inside out taking care not to wrinkle
the boot.
Step 6: Spray the radome/part and boot with 3M
Application Solution. Then place the boot back on the
radome (liner will be facing up). Using thumb nail, lift
edge of liner from the boot to expose a small portion
of adhesive. Spray 3M Application Solution on this
portion. When removing the remainder of the liner,
continuously spray 3M Application Solution on the
exposed boot.
Note: Using the radome/part as a holder for the boot is
important when removing the liner. This prevents the
boot from sticking to itself - making it unusable.
Step 4: Use 3M™ Vinyl Tape 471 to mark three index
points on the radome/part
(one on the top and two on
the sides approximately 90° apart) clearly establishing
the center point, so the boot can be repositioned
properly. Then mark three additional index points on
the boot
opposite of marks currently in place.
Step 2: Trim the boot with a pair of scissors about 1/4
inch above the trim line (trim line is located 1/2 inch
above the base) that is found on most boots. Make
clean, smooth cuts - avoid jagged edges.
Note: To document the installation in the aircraft log
books, save the boot identifier tag that is on the base
of the boot.
Suggested Installation
Procedures
Note: This installation procedure does not apply to 3M™ Polyurethane Protective Boots
made from SJ8641. See authorizing installation documents or 3M™ Polyurethane
Protective Tape 8641 technical datasheet for installation instructions.