Frequently Asked Questions


What type of brush should be used to apply stripper?

Any inexpensive brush will work but the stripper will probably damage the brush, so plan on throwing it away. Synthetic (polyester and nylon) brushes may deform, but that's ok because the brush is simply used to push the remover over the surface.


How much paint remover should be applied?

As thick of a coat as possible without running—the more remover on the surface, the faster, easier and more complete the stripping will be. The same is true of spray-on strippers. Excess can be pushed onto nearby spots and reused.


How should a brushable stripper be applied?

In a thick coat with a single brush stroke. Strippers contain ingredients to retard evaporation. Excess brushing causes loss of the active ingredients, causing the stripper to dry out. For safety reasons, keep the work area small and manageable (no more than 9 sq. ft. area).


How do you open the can?

Many Klean-Strip products are tightened to prevent leakage. A sharp blow to the cap or a pair of pliers can be used to free the cap.


Can aircraft remover be used on wood?

No. It will leave a dark stain on the wood.


What do you do if a surface becomes sticky after using boiled linseed oil?

Rub the surface with a clean cloth dipped in paint thinner.


Can Mineral Spirits be used to dissolve wax?



Can paint thinner be used instead of turpentine to thin artist paint?

Paint thinner evaporates more quickly than mineral spirits, so fumes from turpentine can be more hazardous than those of OMS. Turpentine is also more flammable than mineral spirits. Instead, use either a turpentine substitute, Klean-Strip Turpatine or Klean-Strip OMS, as cheaper alternative to solvents from an art supply store. If you use oil paint mediums that contain damar varnish, you must use turpentine (or Turpatine) as a solvent.


Can paint thinner be used to thin latex paint?

No, only oil-based paint.


What is the shelf life of solvents?

Shelf life is two years unopened and six months after opening.


What steps should be taken to dispose of rags soaked in paint thinner?

Dry the rags flat and then dispose of in accordance with federal, state and local regulations.


Are there any removers that are water-soluble?

Yes, Klean-Strip Strip-X and Sprayable Stripper are both water-soluble. Klean-Strip Strip-X helps remove wood stain and varnishes. Klean-Strip Sprayable Stripper works on paint, epoxy, and polyurethane.


What is the difference between Klean-Strip Paint Thinner and Klean-Strip
   Odorless Mineral Spirits?

Odorless Mineral Spirits is a higher-quality, more refined product than regular paint thinner. It has lower odor than paint thinner and leaves less residue when dry.


What is the difference between Klean-Strip packaged kerosene and the
   kerosene I can buy at the pump?

Klean-Strip 1-K Kerosene is much a more highly refined product than the pump kerosene. The sulfur content is much lower than most pump grade kerosene. That means less in the air after burning or crusted onto the wick, which can cause problems with the operation of your heater. Klean-Strip 1-K Kerosene is refined to within a very tight boiling range so that the oily residues are not included. Overall, this means that Klean-Strip 1-K Kerosene is cleaner burning and promotes longer wick life. Also, some kerosene is dyed red, which makes handling a mess. Klean-Strip 1-K Kerosene is water clear, has a mild odor, and will not stain carpet or clothing.


The paint remover did not work. Can you tell me what I might have done

The most common error when using paint remover is not allowing the product to work for the recommend time. Brush or apply the remover in one direction. Do not attempt to "work" the remover into the project. Let the remover set 10 to 15 minutes, or as directed by the label. Sometimes a paint is very chemical-resistant. The remover may need a little help by scratching the surface with some coarse sandpaper to give the remover some spots to attack, then covering the remover with a heavy plastic drop cloth or other plastic sheeting (even a trash bag will help). Let the remover have plenty of time to work. If the stripper is drying or getting gummy before it works, you may not be applying a thick enough layer of stripper. In order to really soften and liquify a paint, the remover will need to be several times thicker than the paint film, so put on a thick layer. Remove stripper from surface with plastic scraper or brush.


I plan to refinish an old piece of furniture. How can I tell if the finish is
   lacquer or polyurethane?

Touch the piece of furniture with a cotton ball soaked in lacquer thinner or fingernail polish remover. If the cotton does not stick to or remove the finish, it is polyurethane.


What do I have to do before painting my concrete garage floor?

New concrete floors should not be painted until the concrete is cured (90day minimum). First, thoroughly clean and rinse the concrete. Then, use Klean-Strip Prep & Etch to "open" the concrete so that the paint can penetrate and stick better. Do not use Muriatic Acid to etch interior concrete as the fumes can rust any metal in the area or cause health problems if they are allowed to build up.

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Tip Box

Many antiques are finished in old paint compounds that may contain hazardous materials. Check your federal, state and local guidelines for proper disposal.

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