Cordura fabric has become a popular material for use in a wide range of gear, from hiking boots to ballistic vests. Incredibly rugged and often waterproofed, items made with Cordura fabric can still become damaged over time with hard use. Cordura may come in different weights and weaves but, because of the type of thread and weave density, repairing it at home is the same process no matter what the garment or type of finish on the fabric.
Clean the torn area with isopropyl alcohol to remove all dirt and oils. Any oils on the fabric--such as suntan lotion--will reduce the effectiveness of the repair.
Remove the backing from a peel-and-stick patch. The type of patch does not matter, only that it is peel-and-stick, as it will be removed once the seam grip adhesive has dried. At a minimum, the patch needs to be at least half an inch longer and wider than the area to be repaired. Place it on the torn area--on the interior of the item to be repaired--pressing the torn sides together and firmly to create a removable backing.
Apply seam grip adhesive to the exterior of the rip (reverse side of patch) filling the area between the torn fabric completely. The peel-and-stick patch will act as a backing, holding the liquid adhesive in place as well as holding the torn edges in place. Spread the adhesive at least a quarter-inch beyond the rip into the undamaged surface. Smooth the adhesive into the fabric.
Allow the adhesive to air dry for 8 to 12 hours. You do not need to apply any pressure during the curing process. The peel-and-stick patch will hold the ripped edges together while the adhesive is drying. Once the adhesive is dry, remove the patch from the interior. The cured adhesive will keep the torn edges of Cordura together, creating a custom patch without the need for any additional material or sewing.
If no isopropyl alcohol is available, gently scrub the area to be repaired with a brush and mild detergent to remove any dirt and oil. Rinse with clean water and allow to dry.
Repairing Cordura fabric that is ballistic grade or designed as a safety garment--such as motorcycle gear--is not recommended as the integrity of the garment has been compromised and cannot be repaired to function as intended.