When printing with rollers (cylinders) different to those used to manufacture the paper, the grains (veins) of PVC do not coincide with the ones on the surface. Therefore the aspect, although quite precise, will never be identical to the board. This by itself can create a problem. Some customers believe that the copy on PVC will be 100% identical to the board, being this most improbable.
Temperature fluctuations affect negatively PVC. In cold weather it hardens, which can cause splintering and profile deformation. In hot weather it softens, which can cause marks of the chipboard. Nevertheless, the formulas employed confer a high degree of stability of this product against these temperature changes to permit a satisfactory edging process. Logically, if the customer’s premises are properly equipped, this problem will be nonexistent.
A faulty application of adhesive agent can cause severe bonding problems. If insufficient, it will not bond properly. If excessive, it can split (some of the glue will remain on the edge, while the rest will remain on the board).
From one production to another, there can be differences in color and gloss, mostly on limited productions. The same applies for melamine, the difference being that the paper production for melamine edges are much superior, thus limiting this problem.
It is inadequate for soft-forming. To apply the soft-forming, the machines will firstly apply the hot melt glue to the edge. If it is a PVC edge, this one will soften to the heat and its application will be most difficult.
For pre-glued edges, which are applied with an iron or hot air funnels, PVC edges are more delicates than melamine edges, due to its behavior to heat.