Q: Which FR products should be applied to wood?
A: Wood Shield™ W-1000, Fire Kote™ FK-100, Termite and Fire
Shield™ TF-500, and Shingle Kote™ SK-200.
Q: Are our FR products paints?
A: NO. See below.
Q: What type of FR product’s do we have?
A: Our current line of FR products for wood can be
classified as either Saturants and/or Penetrants. They
could also be classified as coatings, and are designed to
soak into the material without leaving a topcoat or finish.
Please note that product may “enhance” the grain and
slightly darken wood. But does not change color.
Q: How many square feet per gallon does our wood FR
A: 1 Gallon of FR for wood will cover 400 square feet
Although to reach the proper rating a minimum of 2 Coats
(in most cases) must be applied. In this case 1 Gal. will
then Cover 200 square feet per gallon to achieve a Class
Or you could say that the required spread rate per Gallon
to reach a Class “A” rating is 200 Square feet per Gallon.
Q: What do you mean by Spread Rate? What is the difference
between coverage rate and spread rate?
A: The spread rate is usually the recommended amount of
product that needs to be applied to the material to be
effective. The coverage rate is the amount of product that
can (in most cases) be applied to the surface of a material
in 1 Coat.*
* Some wood may soak up the product faster than other types of wood.
So in this case the applicator may be able to apply the product with
only 1 coat to reach the desired spread rate. As long as 200 – 250 sq.
3ft. per gallon is soaked into the material, it can meet the required
classification according to current data. For example generally SK-200
will go on Shake Roofs at 75-135 S.F per Gallon with only 1 Coat due to
the high absorbency of old Cedar Shakes.
Q: Does Shingle Kote 200 have a different spread rate?
A: Yes! count on using 75-135 Square feet per gallon with
only 1 heavy Coat applying to old cedar shakes. This is due
to the high absorbency rate and dryness of the wood.
Q: Which product(s) are recommended for an interior
A: Wood Shield W-1000 or TF-500 is recommended for interior
applications. Although, Fire Kote 100 FK-100 can also be
applied to an interior if desired by Client to reach a
higher flame resistance or if they need a Class “A” rating.
Q: Which product(s) are recommended for an exterior
A: Fire Kote 100 and Shingle Kote SK-200 are recommended
for exterior applications.
Q: What is the difference between, W-1000? FK-100? TF-500?
A: W-1000 Wood Shield is a general purpose class “B” flame
retardant treatment for wood. It is generally used in
interior applications and can be used for various other
types of materials*.
TF-500 Termite and Fire Shield is similar to W-1000 except
it has additives to increase termite and insect resistance.
Fire Kote 100 is a commercial heavy duty Class “A” flame
retardant chemical with a higher viscosity and FR content.
Flame spread and smoke development is therefore improved.
It can also be used when trying to achieve a 30 minute
rating on a manufactured product#. And can last up to 5
years exposed to the weather.
Shingle Kote SK-200 is an exterior rated product Class
“A” specifically designed for shake shingle roofs, also
shake cedar siding. The resin content has been increased
to provide a better seal and will last 5 years or up to 200
inches of rain whichever comes first.
*Please contact a UFS representative for more details.
# Your Product(s) will need to be tested at an independent
lab in most cases. We do not provide this testing but can
provide preliminary testing to help ensure a passing
Q: Can these products be applied to any wood surface?
A: NO! The surface cannot be sealed or have any type of
coating on it. The surface also must be free of all
defects and cleaned before use.
Applying the FR to a surface with an existing coating can
ruin the finish and will not make the material Flame
Q: If this is so, what type of surface can the FR be
A: It can be applied to unfinished and/or uncoated wood.
Always check to see if the wood is porous.
Q: What if the wood is coated or sealed and still needs to
be Flame Resistant?
A: The applicator must then strip off the old sealant
and/or coating and make sure the wood is porous before
applying the FR. Another option is to use our Paint
Additive and repaint on top (see paint additive faq).
Q: Can I apply a coating after the FR has been applied?
A: Yes. Although the surface must be dry. (see below)
Q: Are these products compatible with water-based coatings?
With oil based coatings?
A: Yes. UFS FR is compatible with most water-based and oil
based coatings. Please note that a compatibility test
should ALWAYS be preformed on a small area before applying
to entire surface! All product on surface must be cleaned.
Q: Anything else I should know about oil based coating?
A: Yes. You should note that oil based coatings increase
ignition possibilities because of their flammability.
Q: If a code requires a “B” or “C” (“2” or “3”) class and I
apply an “A” class FR chemical, will it pass the code?
A: Yes. Class “B” and “C” have lower flame resistance and
higher smoke development (bad) making them virtually
obsolete compared to class “A”. Class “A” “1” has the best
flame resistance and lowest smoke development so it will
pass any A,B or C (1,2 or 3) code.
Q: Can our FR products for wood be applied to other types
A: Yes. As long as the material is porous and not coated
with a finish, products such as Fire Kote 100 has been
applied to a variety of building materials such as Foam.
Although our wood products should never be applied to
Q: Do you need PPE (proper protective equipment) when
applying our FR products?
A: Yes. PPE should be worn, such as gloves, goggles, and a
painters respirator. Also measures should be taken to
allow plenty of ventilation when applying indoors.
REV. OCT. 28, 2014, UNISHIELD INTERNATIONAL LLC