Use and Care Manual

ManualsBrandsRust-Oleum OKON ManualsBuilding materials5-gal. S-40 Water Repellent Sealer

TECHNICAL DATA OKN-02

OKON S-40 ™

WATER REPELLENT SEALER FOR POROUS CONCRETE AND MASONRY

MASONRY

Form: JPB-02

Rev.: 042814

.DESCRIPTION AND USES .

OKON S-40 is a water-based, oliogomeric siloxane/silane,

ready to use, deep penetrating water-repellent. It is a

colorless, odorless, non-staining, non-yellowing and non-

film forming penetrant used to protect concrete or masonry

surfaces without altering the appearance or texture of the

treated surface. OKON S-40 is breathable, nonflammable

and complies with VOC regulations.

It is designed for vertical surfaces - light weight concrete,

normal weight concrete block and mortar joints, porous

brick, precast, pre-stressed, poured-in-place, exposed

aggregate, and air entrained concrete and horizontal slabs

– above grade concrete wearing surfaces.

Applications include Horizontal and vertical surfaces on

Concrete, Normal weight concrete block, lightweight

concrete, porous brick, mortar joints, exterior walls, sound

barriers, sidewalks, ramps, parking decks, bridge decks

and Industrial Floors.

PRODUCTS .

SKU Container Size

OK-641 1-Gallon

OK-640 5-Gallon

.FEATURES .

 Ready-to-use waterbase, breathable

 VOC Compliant (all jurisdictions)

 Colorless, odorless, non-yellowing

 Non-glossy, will not alter texture or appearance of

treated surface

 Paintable (ASTM D 3359)

 Resists high alkalinity

 Resists chloride salts

.PERFORMANCE CHARACTERISTICS .

 Depth of Penetration - ⅜” (Substrate dependent)

 Absorption Reduction – 88%

 Reduction in Water Leakage – Brick 100%, Mortar

Block >91%

 Accelerated Weathering (1500 hrs.) – No Change

.PRODUCT APPLICATION .

SURFACE PREPARATION

OKON S-40 can be applied to porous surfaces that are

unsealed, clean (free of dirt, waxes and oils), dry and

sound. New concrete must be cured for 21 days prior to

coating. Cracks and joints must be sealed prior to

application. S-40 must be able to penetrate into the

surface. Test the openness of the substrate by sprinkling

with water. If the surface turns dark with the water S-40

can be applied. Clean exterior surfaces by pressure

washing to remove dust, mildew, sand or other foreign

matter. Vacuum and damp-mop interior surfaces. Remove

efflorescence with sulfamic or dilute muriatic acid. If acid is

used, it must be completely neutralized before applying

S-40. Rinse the surface thoroughly after chemical cleaning.

Use a degreaser to remove oil or grease stains.

Dry Substrate: A dry substrate is required to achieve

proper penetration. Allow washed surfaces to dry three

days prior to coating. Surfaces should be dry 24 hours

prior to application. In climates where freezing

temperatures have existed prior to application, allow

adequate time for surfaces to thaw. Do not apply if

ambient air or surface temperatures are below 45º or over

90º F. Do not apply if rain is expected within 12 hours.

Sound Substrate: Surface of concrete and mortar joints

must be hard and firm - not loose or sandy. The surface is

unsound 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. Prior to application,

joints or cracks must be properly sealed or filled. Parapet

walls must be capped and backside sealed with a

waterproofing membrane. Protect adjacent and underlying

surfaces from over spray and rundown.

APPLICATION

OKON S-40 is ready-to-use and should not be diluted.

Agitate before use. Avoid application in windy weather. In

hot weather, where possible, lightly spray surface with

water to cool the surface to prevent flash drying. S-40 is

best applied by low-pressure airless spray but can be

applied by garden-type sprayer or small areas can be

applied by brush or roller. For airless spray, reduce

pressure to 500 psi and use a large tip 0.035 – 0.050” tip.

Hold spray tip 12-18 inches from the surface, start at the

bottom of the wall and work up with an overlapping

horizontal spray pattern to ensure run down of 6 – 8

inches. 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. Uneven application may result in

blotchy appearance. Water repellency properties will

develop 24 hours to 5 days after application.

Summary of content (3 pages)

PAGE 1
TECHNICAL DATA OKN-02 OKON S-40 ™ MASONRY WATER REPELLENT SEALER FOR POROUS CONCRETE AND MASONRY .DESCRIPTION AND USES .PRODUCT APPLICATION . SURFACE PREPARATION OKON S-40 is a water-based, oliogomeric siloxane/silane, ready to use, deep penetrating water-repellent. It is a colorless, odorless, non-staining, non-yellowing and nonfilm forming penetrant used to protect concrete or masonry surfaces without altering the appearance or texture of the treated surface.
PAGE 2
TECHNICAL DATA OKON S-40 OKN-02 WATER REPELLENT SEALER FOR POROUS CONCRETE AND MASONRY .PRODUCT APPLICATION (cont.) . PRODUCT APPLICATION (cont.) . 5-YEAR WATER REPELLENCY WARRANTY Horizontal Surfaces: OKON S-40 can be used to provide water repellency to horizontal concrete floors or pads. Apply by roller, garden-sprayer or low-pressure airless. Do not pour product onto horizontal surfaces to spread.
PAGE 3
TECHNICAL DATA OKON S-40 OKN-02 WATER REPELLENT SEALER FOR POROUS CONCRETE AND MASONRY .PHYSICAL PROPERTIES . OKON S-40 Resin Type Silane / Siloxane Color Colorless Solvents Weight Water Per Gallon 8.41 lbs. Per Liter 1.0 kg <50 g/l (0.42 lbs./gal.) Volatile Organic Compounds 45°F to 90°F (7°C to 32°C) <85% Relative Humidity Application Parameters Practical Coverage Rate (assume 15% material loss) Dry Times at 70°F (21ºC) and 50% Relative Humidity Sq. Ft.