The wpc foam board is made from a type of plastic. This plastic is difficult to produce and gives off harmful VOCs both during its manufacturing and after its installation, for up to 5 years. And while it is technically possible to recycle it, most recycling plants will not receive it, so if you decide to replace it at any point in time, it is likely to go into a landfill.3. Yellowing Nail HolesTo avoid the problem of peeling paint, many homeowners choose to leave their PVC trim in its natural white state. When the trim is nailed or screwed into place, the nail holes are usually covered over with some type of vinyl spackle. This gives the boards a smooth appearance.Unfortunately, that vinyl spackle is likely to turn yellow over time. And because the PVC trim itself remains white, the yellow stands out very clearly, detracting from the appearance of the trim. We are one of the 4x8 pvc foam board, welcome to your come and purchase!