How to Remove Olive Oil From Composite Decking

No doubt you purchased a deck with composite decking to keep time spent on deck maintenance to a minimum; however, all exterior materials require cleaning at least twice a year to maintain their beauty. Your deck is probably a popular place to eat. As such it will inevitably have food spilled on it, some of which can cause stains that are not easy to remove from the wood. Olive oil and grease are two difficult food stains that you may have to deal with.

Step 1

Attend to the stain immediately. Once the stain has set, the task of removing it will be much more difficult. Additionally, certain product warranties are voided if a stain is left unattended for a week. Check your product literature to find out more.

Step 2

Fill a bucket with warm water and mix in a household degreasing agent. Most dishwashing detergents will work. Mix in enough detergent to form a soapy mix. Typically two to three tablespoons will suffice.

Step 3

Pour the mixture over the stain and use a stiff-bristle brush to remove the oil from the embossing pattern. Always follow the wood grain finish of the plank to prevent scratching the surface.

Step 4

Spray off the deck with a garden hose to thoroughly remove all detergent.

Step 5

Spray with a pressure washer if the stain has set. Most composite decking can be pressure washed up to 1200 PSI (pounds per square inch) using a fan tip. Check your manufacturer's literature for pressure washing guidelines.

Step 6

Scrub area with commercially available auto grade degreasers for the most stubborn stains. These should be water-based and are typically "ultra-concentrated". Test the product in an inconspicuous area prior to use to check for unwanted discoloration or staining. Check your manufacturer's literature for restrictions or guidelines.

About the Author

Mark Harari writes on the neighborhoods channel for Examiner.com in Baltimore. He has more than 12 years' experience in the construction industry and has participated in over $40 million in Maryland construction projects. He attended Towson University and began writing professionally in 2001.