FAQ
1881 Trade Center Way, Naples, FL 34109, 239-593-7988 (O), www.siltech-inc.com, 239-593-7983 (F) 
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What if my glass of grape juice or wine or my tea or coffee cup leaves a ring on my 
new SILTECH® windowsill? Typically, wiping the area with a wet paper towel removes the 
ring discoloration completely…even after several days…heck even after several weeks! 
However,  if  there  is  a  particularly  stubborn  substance  that  still  leaves  a  shadow  of 
discoloration behind after wiping with a wet paper towel, you can use an abrasive cleaner 
such as Comet® or Ajax®.  Wipe the cleanser into the discoloration in a circular motion with 
a wet paper towel. Wipe the residue away with a new damp paper towel, then wipe dry. 
For particularly stubborn stains (like permanent marker), using a wet (#7448) Scotch Brite® 
pad and buffing in a circular motion removes it completely. 
What about cigarette burns or stains? Neither leave lasting effects. If such an accident 
should occur, apply an abrasive cleanser like Comet® or Ajax® and buff with a wet (#7448) 
Scotch Brite® pad in a circular motion. Then wipe clean. 
How is a SILTECH® windowsill sustainable? Because of the intrinsic properties of solid 
surface materials (i.e. non-porous, fade resistant, scratch and stain resistant) along with 
proper  care  and  maintenance,  it  can  literally  last  several  lifetimes.    And  because  of  its 
molecular properties, it can be recycled and used again…and again…and again… 
Is  a  SILTECH®  windowsill  environmentally  friendly?    Yes,  it  is.    Adhesive-free 
windowsills can be returned to select facilities and organizations who, in turn, break the 
material down into its base components, then re-process it into usable materials again. 
SILTECH®  windowsills  are  comprised  of  materials  which  possess  low  volatile  organic 
compounds (VOCs) and are considered to be non-toxic. 
Additionally, the material is UL GREENGUARD Gold Certified for low chemical emissions 
(which helps promote a healthier indoor air environment). 






