How to install Extruded Solutions' Tailgate Seal with Taper Seal®

ITEMS REQUIRED: Scissors, clean rag and soap solution.

Extreme temperatures will result in poor adhesive performance. Apply only if air and surface temperature is between 55° - 105°F (13° - 40°C).
Avoid touching adhesive after peeling off red liner. Repositioning of seal should not be done more than 3 times and only 1 time if the temperature is above 80°F (13°C).

Click on photo for an enlarged view

2019 and newer RAM 1500 New Body

Clean area thoroughly with soap and water solution and wipe completely dry. Use alcohol pads to prep the tape application area and let dry. Wait until after Tailgate Seal is installed before applying very firm pressure (25lbs), to secure adhesive bond. If necessary, Tailgate Seal can be removed and repositioned prior to applying very firm pressure. Pictures shown below are for the left sidewall and tailgate gap.


Start 1” (2.5cm) below truck bed floor and attach seal to the rear corner edge of the left sidewall extension (FIG 2A). Continue up sidewall, approximately 8” (20cm) to rubber stop, flush seal to bottom of rubber stop and cut to fit (FIG 2B). Continue up from the top of rubber stop, approximately 7.5” (19cm) and flush seal to next rubber stop and cut to fit (FIG 2C). Continue up from rubber stop, approximately 4.25" (10.8cm) to near top of sidewall (FIG 3A). Apply light pressure to adhesive. Duplicate for right side.

STEP 3: 

Take seal and, with bulb side down, measure the distance, approximately 7.25" (18.4cm) from point A to point B (FIG 3A).

Remove liner. Follow curve of truck and attach bulb side down. Apply light pressure. Duplicate for right side.


STEP 4: 

Close tailgate. If you see light through the sidewalls make adjustments by removing the seal(s) and repositioning. If there is still light then cut pieces of seal, as needed and attach to sidewalls and/or tailgate (refer to enclosed insert card showing common cut piece positions). NOTE: Some trucks will need one extra cut piece on lower left inside of tailgate (refer to insert card). Open tailgate. Apply very firm pressure to secure adhesive bond.


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 the sidewalls and/or tailgate. Do not attach adhesive to seal. Open tailgate. Apply very firm pressure (25lbs) to secure adhesive bond.


One minute help video available at 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. If the bulb rolls downwards, just before closing tailgate, so that you can see the tape, then seal has rolled and compressed too much. This can cause added stress to the adhesive and possible seperation. If compressing too much then invert 1” piece so that bulb side is down. Raise tailgate again and make sure no light is visible through the 1” piece. Adjust 1” piece higher or lower in the gap as needed to block the light. After determining if 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 liner and flush to seal on the sidewall. Attach in sections, apply light pressure to adhesive should you need to reposition. Flush to seal on other sidewall and cut to fit. Apply very firm pressure (25lbs) to secure adhesive bond.


After seal is in place apply very firm pressure (25lbs) 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 applied to surface other than paint, such as plastic or a spray on bed liner, then leave tailgate open for 24 hours.

Views showing left side of tailgate when closed

Shop Products Taper Seal® is a registered trademark of Extruded Solutions, Inc. U.S. Patent #10,099,544