Silly putty pressed into a cotton T-shirt looks hopeless. Plumber’s putty smeared on denim during a kitchen sink repair feels worse. The good news is that nearly every kind of putty comes out of clothing if you attack it in the right order with the right household products. Knowing how to get putty out of clothes depends on one question first: which type of putty are you dealing with? Silly putty is silicone-based, plumber’s putty is a linseed oil and calcium carbonate mixture, window putty is linseed oil and whiting, and therapy or slime putty is typically a borax and glue mix. Each one responds to a different solvent, and using the wrong solvent can set the stain permanently.
Step One: Identify the Putty
Silly putty is bouncy, stretchy, and breaks cleanly when pulled fast. Plumber’s putty is oily to the touch, off-white, and feels like modeling clay. Window glazing putty is similar to plumber’s but harder when set. Slime and therapy putty feel wet, stretch indefinitely, and often contain glitter or color.
For silicone-based putty (silly putty and most therapy putties), rubbing alcohol is the primary solvent. For oil-based putty (plumber’s and glazing), mineral spirits or WD-40 works best. For slime and glue-based putty, white vinegar breaks the borax bond.
Step Two: Remove the Bulk
Before any solvent, get as much putty off as possible with mechanical methods. Place the stained garment in the freezer for 1 to 2 hours. Cold hardens most putties, making them brittle and easy to chip off. Remove the garment and scrape the hardened putty off with a dull knife, an old credit card, or your fingernail.
For putty that has been rubbed deep into the fabric, stretch the fabric between your fingers and crack the frozen putty from the inside out. A second application of ice packs directly on the stain while you work extends your window to scrape before the putty softens again.
Silly Putty Removal
After scraping, flip the garment inside out and place it face-down on a clean white towel or paper towels. Apply rubbing alcohol (70% or 91% isopropyl) to the back of the stain with a cotton ball. Dab, do not rub. The alcohol dissolves the silicone and pushes it through the fabric onto the towel underneath.
Replace the towel as it absorbs putty, and continue until no more color or residue transfers. For stubborn staining, WD-40 sprayed on the back of the stain works as a second-stage treatment. Follow any WD-40 application with Dawn dish soap to cut the oil before washing.
Plumber’s Putty Removal
Plumber’s putty is linseed-oil based and responds to mineral spirits or paint thinner. Apply a small amount to a clean white cloth and blot the stain from the outside in. The oil dissolves into the solvent and transfers to the cloth.
After the bulk of the putty lifts, pretreat the remaining oily spot with Dawn dish soap, Lestoil, or a dedicated oil-cutting stain remover. Work the soap into the fabric with your fingers for 30 seconds, let sit for 10 minutes, then wash in the hottest water safe for the fabric.
Window Glazing Putty Removal
Glazing putty is tougher than plumber’s putty because it contains whiting (finely ground chalk) that grinds into fabric fibers. Start with the same freezer-and-scrape method. Follow with mineral spirits on the back of the stain, then a dishsoap treatment.
If whiting particles remain embedded after washing, a second round with an enzymatic stain remover like OxiClean dissolved in warm water helps lift the mineral content. Expect to go two or three rounds on set-in glazing stains.
Slime and Therapy Putty
Homemade slime and many therapy putties bond to fabric through the borax-glue crosslink. White vinegar breaks this bond. Saturate the stain with plain distilled white vinegar and let sit for 15 minutes. The putty should loosen and lift with a dull knife or stiff brush.
For colored slime, a second treatment with OxiClean or a color-safe bleach removes residual dye. Test on a hidden seam first if the garment is a deep color; some dyes react to vinegar.
The WD-40 Universal Treatment
For unknown putty types or stubborn residues, WD-40 is surprisingly effective. Spray directly on the stain from the back side, let sit for 3 to 5 minutes, and blot with a clean cloth. The petroleum solvents in WD-40 dissolve most oil-based and silicone-based putties.
Critical next step: WD-40 leaves an oily residue that will become its own stain if washed in cold water. Follow with Dawn dish soap worked thoroughly into the treated area, let sit 10 minutes, then wash in hot water. Check the stain before drying; heat will permanently set any residue.
Fabric Type Matters
Cotton and polyester tolerate most solvents well. Silk, wool, and rayon require gentler approaches. On delicate fabrics, start with the freezer-and-scrape method and skip to a dry-cleaning solvent like Guardsman or K2r rather than rubbing alcohol or mineral spirits.
For leather and suede, do not attempt home removal of putty. Take the item to a professional cleaner. DIY attempts on leather often leave a ring or color lift that is permanent.
Carpet and Upholstery Putty Stains
The same principles apply, but you cannot remove carpet and upholstery to a washing machine. Follow the freeze-and-scrape step using ice in a plastic bag. Treat with the appropriate solvent, blot up residue with clean towels, then extract with a wet-dry vacuum or a carpet cleaner.
For professional upholstery, particularly if the fabric is labeled “dry clean only,” skip DIY and call a cleaner. Spending $50 on professional cleaning protects a $2,000 sofa.
When the Stain Sets
A putty stain that has been through a hot dryer is difficult but not always impossible. The heat fuses the putty into the fibers. Try a long soak in warm water with enzymatic detergent (Persil ProClean or Tide Ultra Oxi) followed by the type-specific solvent treatment.
Expect color loss or ghost staining on set stains. For high-value garments, a professional laundry with access to industrial solvents is the safer choice. Expect $15 to $40 for professional stain removal versus $5 in home products.
Mistakes to Avoid
Do not use hot water first. Heat sets most putty stains permanently. Do not rub solvent across the stain; rubbing spreads the stain and damages fibers. Do not put the garment in the dryer until you have confirmed the stain is fully gone under good light; residual putty becomes permanent when heated. Do not mix solvents. Combining WD-40, rubbing alcohol, and bleach can create fumes and damage fabric.
