Use and Care Manual

TwinFinish
®
, ReliaBoard
®
& DockSider
Collections
Dirt, Grime, Tannin and Mildew Stains
TimberTech
®
wood/plastic composite products are formulated to inhibit
mildew growth and minimize staining. Rinse off your TimberTech products
periodically with a hose. Even if it appears clean, it is important to prevent
build-up of pollen/debris. Mildew stains may occur where moisture, pollens
and/or dirt are present. Mildew needs a food source to grow, which can be
grass, pollens, dirt, debris, wood and wood resins.
Maintaining a clean dry surface is the best method for combating mildew.
Ensure that water drains effectively from your deck. For TimberTech
TwinFinish, DockSider, and ReliaBoard, be sure that gaps exist between
planks to allow for drainage.
Cleaner
Tannin Staining
Cleaners that are recommended for mildew removal and/or heavy cleaning are:
Wash Safe Spray and Clean Composite Deck Cleaner
Resist Mist Composite Deck Cleaner
Like an other wood-based product, TimberTechs wood-plastic composite products
(ReliaBoard, TwinFinish and DockSider) may experience a naturally occurring process
called Extractive Bleeding/Tannins. This process may cause temporary discoloration
that will weather away with exposure to flushing rainfall and UV. IN most cases the
weathering process takes 8-10 weeks but could vary depending on location and specific
product application such as a covered porch. Tannins may also be cleaned by utilizing the
cleaners referenced for Basic Cleaning Recommendations for ReliaBoard, TwinFinish,
and DockSider.
These guidelines may not cover every care and maintenance scenario encountered. For
additional questions about care and maintenance, call (800) 307-7780.