Technical Specifications

TECHNICAL DATA
WRT-04
ZINSSER
®
WATERTITE
®
FLEXIBLE PRIMER & FINISH
2
Form: GDH-54
Rev.: 031320
PRODUCT APPLICATION (cont.)
APPLICATION
Stir or mechanically mix thoroughly before and during
application. DO NOT THIN. Apply only when air, material,
and surface temperatures are between 50-90ºF (10-32ºC)
and the relative humidity is or less than 85%. To form a
continuous, pinhole free coating, apply evenly and
thoroughly. To use as a primer, apply one coat. Apply two
coats to use as a primer and finish. Apply using a high
quality, synthetic 3 to 4 inch brush or a ¾” nap roller. If
rolled, back brush the first coat to work the coating into the
concrete pores. It is more important to work the first coat into
the surface than for it to hide the substrate. Product should
be applied at a WFT of 10-12 mils (5-6 mils dry). Use a wet
film gauge to measure properly. Depending upon the
porosity of the substrate, apply the first coat at a rate of 100-
135 square feet per gallon. Apply the second coat at a rate
to complete the project. Flexible Primer & Finish can be
applied with an airless sprayer (tip size 0.017-0.021 with
2400-2900 psi). After spraying, back roll to ensure uniform
coverage.
COLOR/TINTING
The White Tint Base can be tinted with up to 4 ounces of
universal colorant per gallon. The Deep Tint Base can be
tinted with up to 8 ounces of universal colorant per gallon.
Both products produce a smooth, flat finish. The Deep Tint
Base must be tinted before use. Mix on a mechanical
shaker for 7-9 minutes or use a drill motor. Multiple
containers of tinted paint should be boxed (intermixed) to
ensure color uniformity.
PRODUCT APPLICATION (cont.)
DRY AND RECOAT
Dry and recoat times are based on 70°F and 50% relative
humidity. Lower temperatures and higher humidity will
increase dry time. Flexible Primer & Finish will dry to the
touch in 4 hours. Allow the first coat to dry a minimum of 2
hours before applying the second coat. Apply the second
coat only after the first coat has completely dried. Full cure
will be reached in 7 days (slightly longer if tinted). If used
outside, protect from rain for 8 hours after application.
CLEAN UP
Clean hands and tools with soapy water. Drips and runs
should be removed immediately. Once dry, drips and runs
can be removed by sanding or stripping.
LIMITATIONS
Flexible Primer & Finish does not hold back hydrostatic
water pressure. It is NOT recommended for use in
swimming pools or use in contact with potable water. It is
NOT recommended for use on horizontal surfaces (i.e.
subfloors). Do not use on glazed or non-porous surfaces.