I have my outdoor grill on my new Trex Plastic Lumber deck. I already
have some greese stains from the grilling. What product is best for
cleaning the stains?

Hi ryley,

You're going to use any dishwashing liquid such as Dawn, Joy,
Palmolive or a citrus cleaner.  Any solution should be 50% product and
50% water.

You'll use a non-abrasive brush, such as a toothbrush or a small
plastic scrub brush, that has white plastic bristles.  (Sometimes
those scrub brushes are shaped like an iron.)

You do not want to use strong cleaners such as Simple Green or 409,
and do not use SOS or steel wool for scrubbing.

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Tex.com
Frequently Asked Questions
http://www.trex.com/universal/faq.asp

"What do I need to do to care for my Trex deck?
Trex decking does not require stains or sealants for protection. All
you need to do to your Trex deck is to clean it periodically.

How do you clean stains on Trex decking?
For stains caused by mold, mildew, berries and leaves, conventional
deck washes containing sodium hypochlorite work well. For rust stains,
ground-in dirt and grime, use cleaners containing phosphoric acid. For
grease and oil stains, we recommend that you scrub with a detergent
containing a degreasing agent as soon as the stain occurs. Cleaning
out your expansion gaps with a flat tool should be done along with any
periodic cleaning."

================================================================================

Healthy Home Designs
http://www.healthyhomedesigns.com/articles/information13.php

"Maintenance:  
None required.  It can be sanded down to remove scratches or washed to
remove stains."


Google search:

Trex Plastic Lumber clean grease stains maintenance

Best regards,

tlspiegel