Water Based Urethane Matte

SURFACE PREPARATION: For a thin film build system (2-3 mils) we suggest either mechanical
scarification, acid etching (and then neutralize to 7 PH), or diamond grinding until an appropriate profile
is accomplished. Prior to application of the primer a test should be made to determine that the concrete
has an acceptable vapor barrier. This can be done by placing a 4’ X 4’ plastic sheet on the substrate and
completely taping down the edges. If after 24 hours, the substrate is still dry below the plastic sheet,
then the substrate does not show signs of eventual hydrostatic pressure problems that may later cause
loss of adhesion. Adhesion tests are recommended prior to using.

PRODUCT MIXING: Pour a full pre-packaged kit of 2 parts of Part A to 1 part of Part B together and mix
well with slow speed mixing equipment such as a jiffy mixer until the material is thoroughly mixed and
homogenous. Typically 2-3 minutes. Water Based two-part systems need to be mixed well for adequate cure and a streak free
finish.

PRODUCT APPLICATION: Apply the mixed material by brush or roller to a primed surface with a 3/8”
nap – 3/4” nap shed less roller cover at a rate of 4 – 6 wet mils within the usable pot life time frame, as
well as the recommended temperature and relative humidity guidelines listed in the Technical
Information section. If continuous outgassing in the concrete is causing bubbles, re-roll the material
using a cross rolling method before the material cures to reduce or eliminate air entrapment. If the
material becomes thick while applying and sticking to the roller, stop applying and discard the mixed
material. At this point it has reached the end of the usable pot life. While applying keep a wet edge to
prevent roller marks. It is recommended to work in sections usually using control joints as dividers to
ensure proper application results. Do not allow to Puddle! Remove any excess material in joints or low
impression areas. Puddled areas may not cure adequately and may cause blush or a white haze. If
recoating after 24 – 36 hours (temperature depending) a light sanding using a fine sanding screen may
be needed to ensure adequate inner coat adhesion.