How to install Extruded Solutions' Tailgate Seal with Taper Seal®
ITEMS REQUIRED: Scissors, clean rag, and soap-and-water solution.

IMPORTANT: Extreme temperatures can reduce adhesive performance. Install only when air and surface temperatures are between 55°F and 105°F (13°C–40°C).

Avoid touching the adhesive after removing the red liner. Reposition the seal no more than twice (or only once when temperatures exceed 80°F / 27°C), as repeated repositioning may reduce adhesive strength.

For spray-in bed liners (factory or aftermarket), textured surfaces, plastics, and other difficult-to-bond surfaces, use the enclosed Adhesion Promoter. Adhesion Promoter is not required on clean, smooth painted vehicle surfaces.

WARNING: Adhesion Promoter creates an instant bond. Once applied, do not remove, reposition, or readjust the seal.

Click on any photo for an enlarged view.
RAM 1500 with Multifunction Tailgate
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STEP 1
Enclosed adhesion promoter will be used in STEP 4. Clean area thoroughly with soap and water solution and wipe completely dry. Use enclosed adhesion promoter on spray-in bed liners (factory or aftermarket), textured surfaces, plastics, and difficult-to-bond surfaces. It is not required on clean, smooth painted vehicle surfaces. The adhesion promoter will create an instant bond so do not attempt to remove or reposition seal.

STEP 2: ATTACHING STANDARD SEAL TO SIDEWALLS
Start 1” (2.5 cm) below truck bed floor and attach standard seal to the rear corner edge of the left sidewall extension (2A). Continue up and flush seal to bottom of rubber stop and cut to fit (2B). Flush standard seal to top of rubber stop and continue up to top of sidewall. Cut to fit (2C). Apply light pressure to adhesive. Duplicate for right sidewall.
STEP 3: ATTACHING LARGE TAILGATE SEAL TO TOP OF SIDEWALLS
Take the Large Tailgate Seal, cut a 4” (10.16cm) piece and attach as shown in 2C and 2C Alternate View. Apply light pressure to adhesive. Duplicate for right side.
STEP 4
Cut a 4“ (10.16cm) piece of Tailgate Seal and apply to inside top of left tailgate rail (4A and 4A Alternate View). Apply light pressure to adhesive.

STEP 5
Close tailgate. If you see light through the sidewalls make small adjustments by removing the seal and repositioning. If there is still light then cut pieces of seal as needed, and attach to sidewalls and/or tailgate.

Do not attach adhesive to seal. Open tailgate. Apply very firm pressure (25lbs.) to secure adhesive bond.

STEP 6: ATTACHING STANDARD SEAL TO TAILGATE GAP
To evaluate the best positioning for the tailgate gap, cut a 1” (2.5cm) test piece and align the top of bulb with the truck bed floor. Stand to the side of truck and raise tailgate until bulb makes contact with tailgate. Compression and/or slight rolling of the bulb is okay, however, if the bulb rolls downwards too much as the tailgate is closing and you can see the tape, then bulb has rolled too much. This can cause added stress on the adhesive and possible separation.

If you see that the bulb is rolling too much then invert 1” test piece so that bulb side is down. Raise tailgate and make sure no light is visible through the 1” piece. Adjust 1” piece higher or lower to seal out the light.

After determining if the bulb should be up or down and how high or low, remove 1” piece and pick up one end of the continuous seal. Start at either end, peel back a section of liner and flush to seal on the sidewall.

Attach in sections and apply light pressure to adhesive. Flush to seal on the other sidewall and cut to fit. Apply very firm pressure (25lbs.) to secure adhesive bond.
STEP 7
Apply very firm pressure (25lbs.), once more, to secure the entire adhesive bond. Leave tailgate open for 30 minutes. If the air temperature will fall below 50°F (10°C) within the next 24 hours or, if applying to a surface other than paint such as plastic or a spray on bed liner, then leave tailgate open for 24 hours.
   
Inside view showing left side of tailgate when closed