Technical Specifications
Application
Before using DIF Fast-Acting LIQUID, protect carpeting, floors, furniture and adjacent areas. For convenience, apply DIF Fast-Acting
LIQUID using the refillable 32 oz. spray bottle or the larger gallon with spray nozzle attached. For big projects, apply using a
WALWorks
®
stripper roller or a medium nap (3/8” – ½”) roller. Pour enough DIF Fast-Acting LIQUID to fill a plastic paint tray or pour
multiple containers into a plastic 5-gallon pail, insert a roller grid and load the roller from the pail. Apply enough DIF Fast-Acting
LIQUID to leave a thick layer of stripper on surface of the wallpaper. When rolling use slow, steady rolling motions to avoid splattering
the stripper. Be sure to apply in corners and tight spots.
Coverage
One gallon of DIF Fast-Acting LIQUID will cover a little over half of a 10’ x 12’ room with 8’ ceiling (approximately 300
square feet or 6 bolts of wallpaper). Note that coverage will vary with porosity of wallpaper and thickness of product
application.
Wetting Period
DIF Fast-Acting LIQUID functions much like paint remover, i.e. it must penetrate the wallpaper and loosen the adhesive. Reaction time
will vary depending on the type of wallpaper being removed as well as the type of adhesive used. Most wallpaper will be ready for
removal 2 – 10 minutes after DIF Fast-Acting LIQUID has been applied. Some types of wallpaper may take longer.
Scraping Off the Wallpaper
Use the ZINSSER Paper Scraper™** to remove loosened wallpaper. Place blade of Paper Scraper at top edge of side of wallpaper
section and gently slide underneath wallpaper to separate it from the wall. For stubborn areas, reapply DIF Fast-Acting LIQUID and
wait an additional 15 minutes before removing.
Adhesive Removal
Apply DIF Fast-Acting LIQUID and allow to soak until the adhesive is loose and can be sponged or scraped off with the ZINSSER Paper
Scraper or a wide putty knife. DIF Fast-Acting LIQUID will remove starch based adhesives, but not non-water soluble vinyl-over-vinyl or
border adhesives.
**The ZINSSER Paper Scraper is a tool specially designed to remove loosened wallpaper and old adhesive without gouging
or cutting the drywall.
Removal of Wallpaper Borders
Wallpaper borders are frequently installed with a special glue called “border adhesive” or “vinyl-to-vinyl adhesive”. This glue is very
similar to common white glue (Elmer’s
®
Glue) and cannot be removed with wallpaper removers including DIFFast-Acting LIQUID. There
is no easy way to remove borders installed with these glues. Try to peel off the decorative layer as mentioned earlier, and then start
soaking using one of the DIF Wallpaper Strippers. The white glue may soften with long soaking. Scrape off as much of the border and
adhesive as possible using a Paper Scraper. After scraping, sand off the remaining portion with 100-grit sandpaper. Expect some wall
damage. Spot prime areas with B-I-N
®
Spray Primer or GARDZ
®
High Performance Sealer and patch with Ready Patch
®
Spackling &
Patching Compound and sand smooth. Protect porous adjacent surfaces such as popcorn ceilings.
Wall Clean-up
After wallpaper has been removed apply a thin layer of DIF Fast-Acting LIQUID to walls to remove any remaining adhesive. After 10
minutes rinse the surfaces and adjoining areas very well with water. Look to see that all of the stripper solution is removed. Be sure to
change rinse water frequently to avoid recontamination of the walls. If there is mildew, use a household mildew cleaner to destroy any
mildew that may be present. Rinse walls and allow to dry before painting or installing new wallpaper.
Tool Clean-up
Wash roller, brush, and any trays, pans, or buckets with warm tap water.
Storage/Shelf Life/Disposal
Although DIF Fast-Acting LIQUID has an indefinite shelf life, always keep the container tightly closed and store in a cool, dry place
away from direct sunlight or extreme heat. Protect from freezing. The disposal of excess or left over product should conform to local
laws regarding water-based products.
Precautions
Persons with sensitive skin should wear rubber gloves when applying this product. Always work with adequate ventilation
and remove pets from work area. Avoid prolonged contact of DIF Fast-Acting LIQUID with woodwork, cabinets,
countertops, floors etc. as wetting agents may discolor certain finishes.
Caution
Do not take internally. Keep away from children. Close container after each use and keep cap tightly closed during
storage. Keep from freezing.