Use and Care Manual

weatherproofing finish. We have found the following coating effective on uncapped composite boards
when applied and maintained as per the manufacturer’s instructions.
• Behr Premium Transparent Deck, Fence, & Siding Weatherproofing Wood Finish at
http://www.behr.com.
For more information on cleaning mold and mildew, see Fiberon Technical Bulletin # 13 at this link,
http://www.fiberondecking.com/design/literatureCenter.
Tannin Stains
Tannins naturally occur in all wood species and sometimes migrate to the surface where wood fibers are
exposed to sun and water. Tannin stains tend to disappear naturally after removal of standing water
under mats, flower pots or umbrella stands where water is trapped for longer periods of time.
To hasten removal of tannin stains, use a commercial composite cleaner designed specifically for this
type of fencing, strictly following the manufacturer’s instructions. One effective treatment is a mixture
of one cup TSP (Tri-sodium phosphate), one cup bleach and one gallon warm water, applied with a long-
handled deck brush. To help protect landscaping, we recommend wetting down landscaping prior to
treatment.
Salt and Calcium Chloride
Build up of salt and calcium chloride is easily removed with enough water and perhaps a light scrub. Use
a garden hose or sprayer. If using a pressure washer, use at low pressures under 1,500 psi and at safe
distances, 12" from surface, to avoid damage.
Construction Chalk
Colored chalk, used in construction for marking straight lines prior to cutting, is permanent on most
surfaces. Contact the manufacturer of the specific brand and color of chalk for a cleaning solution that
may prove effective. The best advice is to avoid colored chalk, using workable alternatives such as white
chalk or baby powder.