PolyWhey FAQ Sheet - Norton Abrasives Floor Sanding

Q: Why is PolyWhey better than other water-based finishes?
A: PolyWhey has greater durability, with a cured hardness that is twice that of the
average water-based finish. The PolyWhey 3500 has 65% less VOC content
than the standard that most water-based finishes try to meet, while the
PolyWhey 2500 has 50% less VOCs than the standard. PolyWhey
accomplishes this by using whey, a natural, renewable resource, as its
bonding agent.
Q: What makes PolyWhey a “green” product?
A: PolyWhey patented formulations use whey protein as a bonding agent. Whey
is a renewable resource and a natural by-product of the dairy industry. This
use of a natural product in our professional finishes translates to low VOCs,
and better indoor air quality.
Q: What is whey?
A: Whey is a by-product of the dairy industry, specifically of cheese making, and
can be used as a supplement in food products. Whey protein is naturally
adhesive, so it helps make a strong bond to the wood surface and a lasting
film. Our whey is very high in protein content. When used in our Wood Floor
Finishes, whey displaces the toxic ingredients traditionally used in wood finish
by functioning as the co-binder and co-solvent.
Q: What does “VOC” stand for, and why should they be considered?
A: VOCs, or Volatile Organic Compounds, evaporate into the air from many
substances. These off-gasses contribute to smog production and health
problems from inhalation. Petroleum products, like oil-based finishes, have
harmful levels of these VOCs and are easily identifiable by their noxious smell.
Q: Is it possible to have a different level of gloss?
A: Yes; PolyWhey 2500 is available in satin, semi-gloss, and gloss, while
PolyWhey 3500 is available in matte, semi-gloss and satin. Both products are
available in both one and 5-gallon containers.
Q: What is the VOC level of PolyWhey Wood Floor Finishes?
A: The VOC level for PolyWhey 2500 is 135 g/L (grams per liter), while the VOC
level for the PolyWhey 3500 and MVP Sport Floor Finish is 95 g/L. All three
products surpass California’s requirement of VOC ≤ 275g/L, the toughest
indoor air quality standard for wood finishes in the United States.
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Q: How is it applied?
A: PolyWhey Floor Finishes can be applied using standard application methods
for water-based finishes with a T-Bar, roller or paint pad.
For complete instructions please refer to separate Technical Data and
Installation Guide.
Q: How do I prepare a surface for a PolyWhey Wood Floor Finish?
A: Sand new and existing floors by following accepted NWFA/MFMA guidelines.
For existing floors, all old finish must be removed. Grit selection for final
sanding will vary by species and whether stain will be applied. For smoothest
and best overall finish, final sanding with a 120 grit screen is recommended.
For recoating existing floors, check first for the presence of wax or acrylic
polishes and if present, follow NWFA guidelines for proper testing and
complete removal. Clean floor thoroughly with VNC Wood Cleaner. For best
results, abrade the floor with a blue Norton SandDollar (or alternatively, a 150
grit pad and strip). Be sure to vacuum and tack floors before application.
For complete instructions, please refer to separate Technical Data and
Installation Guide.
Q: Do I need to use the PolyWhey 3000 Sealer on bare wood?
A: PolyWhey floor finishes can be applied without the use of sealer, however is it
recommended to first seal with the PolyWhey 3000 Sealer as its use will
minimize grain raise, giving the smoothest possible finish and minimizing
tannin pull on white oak.
Q: How fast do PolyWhey Professional Wood Floor Finishes dry?
A: Under normal conditions and with good ventilation, treated wood will be dry
and ready for use or recoating in 1.5 to 2 hours. Allow 1 week for full
product cure.
Q: Does it yellow when exposed to UV light?
A: Our interior finishes will stay clear when exposed to interior UV light.
Q: How do I maintain PolyWhey Professional Floor Finishes
after installation?
A: Vacuum or sweep floor as needed and clean periodically with VNC Wood Floor
Cleaner. For more information on this product, please visit www.
Q: Can PolyWhey Wood Floor Finishes be applied over quick-dry and
universal sealers?
A: PolyWhey finishes can be applied over most solvent based sealers that are
properly cured. Always test for compatibility prior to application.
Q: Can PolyWhey Wood Floor Finishes be applied over any type of
finish when recoating a floor?
A: PolyWhey Finishes can be applied over most water-based and solvent based
finishes that are fully cured. Follow guidelines for proper preparation of
existing finishes for recoating and always test for compatibility prior
to installation.
Q: What is the pot life of the PolyWhey finish?
Q: Can masking tape be applied to a freshly coated floor (ie. to
A: Because no hardeners or catalysts are needed there is no limited pot life. Any
protect the floor from painting baseboards and trim)?
surplus finish can be reused if kept in a properly sealed container for up to one A: When installing a new floor, we recommend covering the entire surface with
year from date of manufacture.
paper during construction or renovation, using a quick-release tape (ie. 15 day
or less) that is specified for use on floor finishes, and only taping paper to
Q: Do I need to stir or shake the finish before use?
paper (never tape to new finish). PolyWhey Wood Floor Finishes must be
A: Yes, the finish should be stirred thoroughly before each use. One-gallon
fully cured before tape can be applied directly, which takes
containers should be stirred and shaken (after stirring). 5-gallons pails may be
approximately one week.
stirred either by hand or with an electric mixing paddle.
Q: Can PolyWhey Wood Floor Finishes be applied over stain?
A: PolyWhey Professional Floor Finishes can be applied over most professional
floor stains, but always first test a small area for compatibility. PolyWhey 2500,
3500 and MVP finishes can be applied directly over stain without use of
Polywhey 3000 sealer. Follow stain manufacturers guidelines for stain dry
times and finish application and always confirm surface is ready for topcoating.
Toll Free Phone: 1 (800) 551-4415
1 (254) 918-2306
Fax: 1 (254) 918-2309
Toll Free Phone: 1 (800) 263-6565
Toll Free Fax: 1 (800) 561-9490
Toll Free Phone: 1 (888) 639-9439
1 (802) 472-8700
Fax: 1 (802) 472-8755
[email protected]
FORM #8548
© Saint-Gobain October 2014.
Norton is a registered trademark; SandDollar is a trademark of Saint-Gobain Abrasives.
PolyWhey® is a registered trademark of Vermont Natural Coatings, Inc.