Technical Specifications

Duck Coat
The White Roof Coating that Stands up to Ponding Water
Revised: 11/15
Manufacturer:
ThorWorks Industries, Inc.
2520 S. Campbell St.
Sandusky, OH 44870
Phone: [phone]
Fax: [phone]
Description
Duck Coat is a white, highly elastomeric,
thermoplastic rubber coating that provides a
waterproof sealant over flat roofs. Duck Coat is
formulated to hold up to ponding water conditions
on flat roofs. Duck Coat can be installed on most
roofing substrates including Built-Up Roofing
(BUR), Metal, Concrete, EPDM Rubber, TPO,
APP, Modified Bitumen, Polyurethane Foam,
PVC, Asphalt, Wood and more. Duck Coat can be
applied in cooler temperatures as low as 35 ºF.
Duck Coat helps extend the life of the roof and
reduce building energy costs by increasing solar
reflectance. Wet, freshly applied Duck Coat will
not wash off even if rain occurs immediately after
application. Dries white.
Uses
• Built Up Roofs (BUR)
• Metal Roofs
• EPDM Rubber Roofs
• Modified Bitumen
• Polyurethane Foam
• TPO, APP, PVC
• Concrete Roofs
• And More
Important
Bleed-through may occur when applying Duck
Coat over asphalt or coal tar roofs, resulting in a
brownish color. Perform a small test patch first to
check for bleed-through. If bleed-through occurs,
additional coat(s) may be required to eliminate
discoloration from bleed-through
Application
For Non-Single Ply Rubber Roof Surfaces (i.e. Built-
up, metal, asphalt, concrete, Polyurethane, etc.)
Stir Duck Coat thoroughly before and during
application. DO NOT THIN. Clean surfaces
thoroughly by brooming away dirt, debris, and
loose particulate. Broom away excess water and
allow roof surface to dry. Duck Coat can be applied
by brush, roller or spray. Apply at a rate of 70
square feet per gallon per coat. Two coats are
recommended for optimum performance. Allow
Duck Coat to dry thoroughly between coats. Airless
spray equipment shall be capable of producing
3,000 psi and 1 gallon per minute capacity.
Recommended spray tip size is .025 to .035. Dry
time of coating is dependent upon temperature
(warmer temperature will result in faster dry time).
Typical dry time is 2-4 hours. Typical re-coat time
is 4-10 hours. Brush should be quality synthetic.
Roller should be long nap for solvent based
coatings.
For Single Ply Rubber Roof Membranes (EPDM,
TPO, HYPALON)
Stir Duck Coat thoroughly before and during
application. DO NOT THIN. Power wash and
scrub with broom to remove dirt and grime and
rinse well. Let dry 24 hours. The following three-
step application process is designed to minimize
swelling and deformation of the rubber roof
membrane as the solvent “bites” into the rubber
membrane.
• Using a 9” double supported roller, apply a thin
prime coat of Duck Coat at a rate of .5 gallon per
100 square (you should still be able to see some
of the membrane showing through.) Allow prime
coat to cure for at least 4-6 hours or until dry to
the touch.
• Apply a second coat of Duck Coat at a rate of 1
gallon per 100 square feet and allow to dry.
• Apply a third coat of Duck Coat at a rate of 1
gallon per 100 square feet and allow to dry.
NOTE: Duck Coat may be applied to single ply
rubber roofs by contractors with experience in
spraying solvent based roof coatings in thin layers.
IMPORTANT: DO NOT OVER APPLY DUCK COAT
AS THIS MAY RESULT IN EXCESSIVE WRINKLING
OR BUCKLING OF THE RUBBER MEMBRANE. DO
NOT POUR DUCK COAT DIRECTLY FROM PAIL
ONTO RUBBER ROOF AS THIS COULD WRINKLE
MEMBRANE. POUR DUCK COAT INTO A PAN
AND APPLY BY ROLLER AT RECOMMENDED
COVERAGE RATE. SPRAY APPLICATION IS
ACCEPTABLE BY EXPERIENCED CONTRACTORS.
Clean Up
Xylene.
www.duckcoat.com
LIQUID THERMOPLASTIC RUBBER COATING