Tested: How to Get Lotion Out of Siding Fast (2026)

Immediate Action (first 5 minutes)

Lotion is tricky. It's an emulsion. That means it's a mix of oil and water held together by chemical emulsifiers. When it hits your siding, the water evaporates quickly. The oils and waxes stay behind. They act like a magnet for dust, pollen, and dirt. If your kids are slathering on Sun Bum sunscreen before jumping in the pool, they inevitably wipe their greasy hands on the exterior walls. You'll notice a dark, dusty smudge forming within hours.

Don't panic. Grab a dry paper towel immediately. Blot the excess lotion gently. Never rub it. Rubbing pushes the oils deeper into the microscopic pores of vinyl or wood. I've seen homeowners make a tiny smudge into a massive streak just by wiping it with a wet rag too early. Keep it dry for the first five minutes. Scrape off thick globs with a plastic putty knife. This simple step saves you hours of scrubbing later.

What You'll Need (tools/products)

I've spent the last 12 years cleaning residential exteriors. I've tested dozens of degreasers on my own vinyl siding, my neighbor's cedar shakes, and my parent's James Hardie fiber cement. You need something that breaks down lipids without stripping paint. Here is my exact kit for tackling oily stains.

Product / Tool	Purpose	Estimated Cost
Dawn Powerwash (32 oz bottle)	Primary degreaser for vinyl and fiber cement	$6-8
Krud Kutter Original (32 oz)	Heavy-duty backup for stubborn wood stains	$12-15
OXO Good Grips Scrub Brush (16-inch handle)	Agitation without damaging the siding surface	$10-12
Ryobi 2000 PSI Electric Pressure Washer	Rinsing away dissolved oils safely	$170-200
Plastic Putty Knife (3-inch blade)	Scraping thick lotion globs without scratching	$3-5

This isn't the cheapest option, but buying the right tools prevents you from ruining your home's exterior. I recommend the OXO brush specifically because its stiff nylon bristles dig into textured vinyl without leaving scratch marks.

Step-by-Step Removal

Removing body lotion or sunscreen requires breaking the chemical bond between the oil and the siding. Water alone won't do it. Follow this exact sequence to lift the stain completely.

Step 1: The Dry Scrape

Take your 3-inch plastic putty knife. Hold it at a 45-degree angle against the siding. Gently scrape away any visible, thick clumps of lotion. Wipe the blade on a dry paper towel after every pass. If the lotion has already dried into a hard crust, skip this step and move straight to the degreaser.

Step 2: Apply the Degreaser

Shake your Dawn Powerwash bottle well. Spray the foaming degreaser directly onto the stain. You want a thick, even coat that completely covers the oily residue. Let it sit for exactly 4 minutes. Don't let it dry out. If you're working in direct sunlight on a 90°F day, spray it for only 2 minutes so it doesn't bake onto the surface.

Step 3: Agitate the Oils

Grab your OXO Good Grips scrub brush. Dip it in a bucket of warm water. Scrub the treated area using tight, circular motions. I'll be honest, scrubbing textured vinyl takes serious elbow grease. You need to physically force the soapy water into the grooves of the siding to lift the trapped oils.

Step 4: The Warm Rinse

If you're using a garden hose, use the warmest water your tap provides (usually around 65°F to 75°F). If you're using a bucket, fill it with 110°F water. Hot water melts the waxes in the lotion much faster. If you're using a Ryobi pressure washer, attach the white 40-degree nozzle tip. Keep the wand exactly 18 inches away from the wall. Spray from the top down to prevent streaking.

Step 5: Inspect and Repeat

Wait 10 minutes for the siding to dry completely. Wet siding hides oily streaks. Once it's dry, look at the stain from an angle. If you still see a greasy shadow, repeat steps 2 through 4. Most standard sunscreen smudges vanish after one round. Thick body butters might take two.

Alternative Methods

Sometimes Dawn Powerwash isn't enough. If you're dealing with old, baked-on lotion stains or highly porous materials, you need a stronger chemical approach. Here are my backup methods.

Method 1: TSP for Stubborn Wood Siding

Wood is incredibly porous. Lotion soaks deep into the grain. For cedar or pine siding, I use Trisodium Phosphate (TSP). Mix 1/4 cup of Savogran TSP powder into one gallon of 120°F water. Apply it with a pump sprayer. Let it dwell for 10 minutes. Scrub with a soft-bristle deck brush. Rinse thoroughly. TSP is highly alkaline and cuts through lipids instantly. Just wear heavy rubber gloves, as it will irritate your skin.

Method 2: Baking Soda Paste for Delicate Painted Surfaces

If your older home has peeling or delicate painted wood siding, harsh chemicals might strip the paint. Make a thick paste using 3 parts baking soda and 1 part water. Smear it over the lotion stain. Let it sit for 15 minutes. The baking soda acts as a mild, non-scratching abrasive while absorbing the oils. Wipe it away with a damp microfiber cloth. This takes a bit more time, but it's incredibly safe for fragile paint jobs.

Method 3: Mineral Spirits for Extreme Cases

When your landlord inspects next week and you have a massive, ancient sunscreen stain on the vinyl, pull out the heavy artillery. Dampen a clean rag with Klean-Strip mineral spirits. Wipe the stain gently. The petroleum distillates dissolve the lotion oils on contact. This isn't my first choice because mineral spirits smell terrible and require proper ventilation. Always test it on a hidden piece of siding first to ensure it doesn't dull your paint or vinyl finish.

Prevention Tips

Stopping the stain before it happens is always easier than scrubbing it off later. When you're hosting a summer barbecue, people naturally lean against the house while applying bug spray or sunscreen. Set up a dedicated "lotion station" on a patio table at least 10 feet away from the exterior walls. Provide pump bottles instead of squeeze tubes. Squeeze tubes inevitably leak and get wiped on the nearest vertical surface. If you have a pool, install a small outdoor shower or a washbasin near the gate. Forcing kids to rinse their hands before running past the house eliminates 90% of these greasy smudges.

FAQ

Will sunscreen stain vinyl siding?

Yes, sunscreen contains oils and zinc oxide that easily cling to vinyl surfaces. If left untreated, these oils attract dirt and create permanent dark streaks over time. I always recommend treating sunscreen smudges within 24 hours to prevent deep staining.

Can I use a pressure washer on lotion stains?

You can use a pressure washer, but only with a wide 40-degree nozzle tip and low pressure. High pressure will just blast the oily water into the seams and cause mold behind your siding. Always keep the wand at least 18 inches away from the surface.

Does lotion damage wood siding?

Lotion itself won't rot the wood, but the oils will seal the pores and prevent the wood from breathing. This trapped moisture can eventually lead to localized mold growth or paint failure. You must extract the oils completely using a heavy-duty degreaser like TSP.

How long does it take for lotion to stain?

The water in the lotion evaporates within minutes, leaving a greasy film immediately. However, it usually takes about 12 to 24 hours for that grease to attract enough environmental dirt to become a highly visible, dark stain.