Use and Care Manual
TECHNICAL DATA OKN-03
OKON W-1
™
WATER REPELLENT SEALER
FOR DENSE CONCRETE AND MASONRY
1 Form: GDH-568
Rev.: 102016
.DESCRIPTION AND USES
.
OKON W-1 Water Repellent Sealer is a proprietary blend of
acrylic micro emulsions and a silane-siloxane solution. The
micro-emulsions penetrate the surface to establish a water
repelling barrier in the subsurface of the concrete and masonry.
OKON W-1 helps protect cast concrete, tilt-up panels, rough
stucco and other comparably dense materials from the
damaging effects of water absorption; efflorescence, mold,
freeze-thaw damage, dusting and staining. It can also be used to
dustproof unsealed concrete floors or pads. Its unique blend of
acrylic micro-emulsion, proprietary water repellent and
silane/siloxane penetrates and protects the substrate while being
highly permeable to water vapor.
OKON W-1 is recommended for dense surfaces including pre-
cast, adobe, granite, limestone, plaster, tilt-up, brick, exposed
aggregate and rough stucco.
MPI #34, #99 Certified*
..FEATURES .
Water-based acrylic micro-emulsion
Non-yellowing
Re-coatable
Paintable
Resists high alkalinity
Resists chloride salts
Resists blushing
..PRODUCTS .
SKU Description
OK-911 1-Gallon
OK-910 5-Gallon
OK-915 55-Gallon Drum
..PRODUCT APPLICATION .
SURFACE PREPARATION
OKON W-1 can be applied to most dense concrete surfaces that
are unsealed, clean (free of dirt, waxes and oils) and sound. New
concrete must be cured for 28 days prior to coating.
Unsealed: W-1 must be able to penetrate the surface. Test the
openness of the substrate by sprinkling with water. If the surface
turns dark with the water W-1 can be applied.
Clean: Clean exterior surfaces by pressure washing to remove
dust, sand or other foreign matter. Vacuum and damp-mop
interior surfaces. Remove exterior mildew with JOMAX
®
House
Cleaner & Mildew Killer or equivalent. Remove efflorescence
with suflamic or dilute muriatic acid. Spot cleaning with acid may
cause uneven porosity and blotchy appearance.
* Refer to the MPI website for the most current listing of MPI certified
products.
..PRODUCT APPLICATION (cont.) .
Rinse the surface thoroughly after chemical cleaning. Un-rinsed
acid salts may cause whitish-blotches to appear. Use a
degreaser to remove oil or grease stains. Surface can be slightly
damp at time of application.
Sound: Surface of concrete and mortar joints must be hard and
firm - not loose or sandy. The surface is un-sound if it can be
scraped or gouged with a flat screw driver. Unsound mortar or
deteriorated concrete should be removed and repaired prior to
coating. Cracks and joints must be sealed with flexible sealant.
Parapet walls must be capped and backside sealed with a
waterproofing membrane. Protect adjacent and underlying
surfaces from over spray and rundown.
COVERAGE
The spread-rate of OKON W-1 will vary with the porosity and
texture of the surface. Always apply material to test area prior to
general application to establish spread rate. After application
water should bead and sheet off surface. If not, apply an
additional coat. OKON W-1 can be recoated after the initial coat
is dry, clear and colorless.
APPLICATION
OKON W-1 is ready-to-use, no thinning is required. Surface can
be slightly damp, but not wet at time of application. In hot weather,
where possible, lightly spray surface with water to cool the
surface to prevent flash drying. It can be applied by garden-type
sprayer but is best applied by low-pressure airless spray. Use a
small to medium size airless pump at (⅓-⅔ gpm) set a low
pressure (500 psi) and a 0.015-0.019” tip. Hold spray tip 12-18
inches from the surface, start at the top of the wall and work
down with an overlapping horizontal spray pattern. Make multiple
application passes at the top of the wall to insure run down of 3 –
5 inches down the wall. Take special care to saturate mortar
joints. Do not stop or interrupt the application in the middle of the
wall. Stop application only at expansion joints, walls or breaks
defined with masking tape. Back rolling is recommended to
prevent streaking on very dense substrates. W-1 appears milky-
white when applied but dries clear. Material that is not absorbed
should be back rolled or brushed out to avoid build up. Do not
allow puddles, drips or runs to dry on the surface. W-1 may
slightly darken the surface and add a slight sheen.
Horizontal Surfaces: OKON W-1 can be used to dust-proof
horizontal concrete floors or pads. Steel troweled surfaces
should be acid etched before using W-1 as a dust-proofer to
ensure penetration. Apply by roller, garden-sprayer or airless. Do
not pour product onto horizontal surfaces to spread. Apply
sufficient material so that surface remains wet for several
minutes before material is absorbed. After 30 minutes, back-roll
remaining pools or puddles to prevent excess material from
drying on the surface.
Protect shrubbery, plants, and grass, glass, metal and asphalt
surfaces during application.