Delamination of Carpet Backing
The biggest problem that can occur with the backing is delamination. This is the separation of the secondary backing from the primary backing of the carpet. If the carpet and the secondary backing are not attached strongly enough, they can separate, causing an installed carpet to wrinkle or pucker.
The most common cause of delamination is improper formulation or application of the latex adhesive, in which case it is a mill defect.
Additionally, delamination may be caused by use of an excessively thick low-density cushion (pad), overuse of solvent spotters (especially if directly poured onto the carpet), and traffic on carpet that is wet for a long time.
Also, after a carpet gets wet from cleaning or water damage and then dries, shrinkage sometimes occurs in the backing system that will lead to wrinkling and puckering.
Delamination can also be caused by heavy equipment being moved frequently over the carpet.
Urine (nursing homes and pets), especially at the seams, may also cause delamination of the carpet.
Spillage of gasoline, fuel oil (kerosene) and lava lamp oil may also delaminate the carpet.
Delamination can also be caused by misapplication of seam sealer or by having cushion seams directly under carpet seams.
Backing adhesion is the amount of force required to delaminate or separate the primary and secondary backings.
Related Carpet Manufacturing and Fibers Information: