A vinyl roll up tonneau cover is a popular truck bed cover that provides protection and security for your truck’s cargo area. However, over time, the vinyl material can weaken and split at the seams due to normal wear and tear from use and exposure to the elements.
Repairing split seams on a vinyl tonneau cover is possible with a few basic steps and materials. Let’s look at the best ways to diagnose and fix split seams so you can get your vinyl roll up tonneau cover back to optimal condition.
Identifying Split Seams
The first step is locating any split seams or openings on your vinyl roll up cover. Do a thorough inspection of the entire cover, checking all sides and seams. Look for:
- Gaps between vinyl segments
- Rips or tears along stitching
- Areas where the vinyl cover does not lay flat or smooth
- Points where light shines through
Split seams will compromise the protective abilities and weather resistance of your tonneau cover. Water, dirt, and UV rays will be able to penetrate the cover through any openings. Locating all problem areas upfront will allow you to perform a proper and complete repair job.
Preparing the Repair Area
Once you’ve found the split seams, take time to clean the vinyl cover surface around the damaged areas. Use a mild soap and water solution and a soft cloth or sponge to gently wash away dirt, grime, or debris on the cover. Make sure the vinyl is completely dry before moving on to the next step.
It’s also a good idea to clean the underside of the cover as well. Any frayed fabric or rough edges around the split should be snipped off smoothly. This will allow the repair patch to sit and adhere flatly.
Cutting the Patch
For the best repair, you’ll want to cut a patch of new vinyl that overlaps the damaged seam area by at least 1 inch on all sides. Measure the length and width of the gap or split in the vinyl cover. Then add 1 inch to each of those measurements to get the size for your repair patch.
Use sharp scissors to neatly and smoothly cut out a rectangle vinyl patch to these specifications. Round the corners to prevent peeling. Make sure the vinyl patch color matches your tonneau cover as closely as possible for a seamless look.
Applying Adhesive and Patch
Read the instructions on your vinyl repair adhesive very carefully and follow the directions. Clean the repair area one more time before opening the adhesive. Apply a thin, even layer of adhesive to both the underside of the vinyl patch and the surface of the tonneau cover surrounding the seam gap.
Allow the adhesive to become tacky or partially dry per the instructions. Then position the vinyl patch over the damaged area, being sure to align the edges evenly. Press down very firmly on the patch, working from the center outward to allow the adhesive to bond securely.
Clamping the Patch
For the best bond, it is highly recommended to clamp the vinyl patch in place as the adhesive dries and cures. Use small C-clamps or locking pliers on the edges of the patch to apply consistent pressure as the adhesive sets. Keep the patch tightly clamped for at least 24 hours for maximum strength and durability.
Re-stitching Seams
If the split seam also involves the vinyl cover’s stitching itself being ripped, you may need to re-sew the seam after the patch is applied. Try to stitch in the existing seam line as closely as possible using strong UV-resistant thread. Stitch several times over the length of the seam for durability.
For easier access, you can remove the vinyl cover from the roll up bars to stitch on a flat surface. Just be sure to properly align and clamp the cover before sewing.
Letting the Repair Cure
Leave the vinyl patch clamped for the full recommended adhesive cure time, which could be 24 hours or more. The bond will get stronger over time, so it’s important not to rush the curing stage. Once the patch seems solidly bonded, remove the clamps. Give the repair another day or two to finish hardening before using your vinyl roll up tonneau cover.
Protecting the Cover
To get the longest lifespan from your vinyl tonneau and prevent further seam tears, use some preventive care steps:
- Park in shaded spots to limit sun exposure
- Clean vinyl regularly with mild soap and water
- Use protectant sprays to repel dirt and UV damage
- Handle the cover gently and avoid dragging on ground
- Keep debris cleared from the truck bed
- Lubricate roll bar hinges to prevent excessive strain
With proper installation and care, your heavy duty vinyl tonneau cover should provide many more years of reliable cargo protection for your pickup truck bed. Periodically checking for and repairing any split seams or damage right away will go a long way in extending the life of your roll up tonneau cover.
Conclusion
Split seams on a vinyl roll up tonneau cover can compromise cargo security and allow damage from weather elements, but can be successfully repaired. With some basic vinyl repair supplies, taking the time to properly clean, patch, clamp, and re-stitch the seams will have your tonneau cover looking great and functioning like new again.
Investing a little effort into prompt vinyl seam repairs will save you money in the long run compared to replacing the entire cover. And being diligent about using tonneau cover protectants while parked plus handling the vinyl carefully during use will help prevent splits and tears in the first place. Your truck and any cargo will be better shielded from the elements once your vinyl roll up tonneau cover’s split seams have been fixed.