Some good stains for composite decking are Penofin's Knotwood Oil Finish, Behr Premium solid color wood stain and Sherwin Williams Deckscape, as noted by MasterHandyman.com. Another stain product suitable for this type of decking is Messmer's Composite Finish.
Composite decking is manufactured from a combination of plastic and wood particles such as sawdust or wood chips. Composite decking is popular for patio and deck construction. If composite decking fades over time or a homeowner wants to change the color of the decking, then it is important to get a good stain product that is designed for this specific decking type.
Penofin's Knotwood Oil Finish is one choice for staining composite decking that turns gray. This product comes in three different transparent tones, which are cedar, mahogany and redwood. This product contains Brazilian rosewood oil and an additive that retards mold and mildew, according to Penofin.com. Only one application of this finish is necessary.
MasterHandyman.com also recommends the oil-finish products for composite decking from Behr and Sherwin Williams. Another choice is Messmer's Composite Finish. Messmers.com has complete directions on how to clean decking and then apply the stain. Reapplication of this type of oil finish is necessary about every two years.