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Westcoat SC-42 WB Acrylic Sealer

Chemical Family
Acrylics & Acrylates

Westcoat SC-42 WB Acrylic Sealer is a one part, water-based, clear acrylic concrete sealer. It is high quality, easy to use and cost-effective. It is typically will not darken the substrate, like a solvent-based acrylic and will provide a more subdued finish.

Other characteristics

Features

Consistent High Quality, Cost Effective, Durable, Excellent Substrate Adhesion, Fast Drying, Good Non-Yellowing Properties, Low Odor, Medium Gloss, UV Resistant, Water-based

Product Type

1K (1 component) Coating, Sealer, Waterborne Coating

Application Area
Patios, Walkway
Application Method
Brush, Roller, Spray
Compatible Substrates & Surfaces
Brick, Coated Surfaces, Concrete
Usage

SC-42 is designed to seal porous concrete, acrylic cement, brick, tile and some previously painted surfaces where a protective finish is desired.; It is excellent for use as a general concrete sealer.; SC-42 can be used on driveways, patios and walkways, as it fares well with tire traffic.; SC-42 can be used in interior and exterior applications and can be used over Westcoat's SC-10 Acrylic Topcoat to add gloss and over Texture-Crete® Finishes as the final seal coat.

Color
Transparent
Mixing
Stir prior to use.
Carrier
Water
Markets
Paints & Coatings
Clean Up

Uncured material should be removed with an environmentally-safe solvent.; Cured material should be removed mechanically.

Coverage

Will vary depending on the surface.; Up to 400 square feet per gallon on a smooth surface and between 200-300 square feet per gallon on a rough surface.

Dry Time

For best results, allow the product 4-6 hours drying time at 70 degrees before permitting light pedestrian traffic or additional coats are applied.; Allow 24 hours to cure before heavy traffic is permitted.; Allow 48 hours before heavy objects are placed on the surface and allow 72 hours for vehicular traffic.; Allow 5 days prior to any abrasion or chemical exposure.

Moisture

All concrete should be tested for moisture before applying a seamless coating.. If moisture emissions exceed 5 lbs/1000 square feet/24 hours (ASTM F1869) or if the relative humidity (RH) exceeds 75% (ASTM F2170), contact the manufacturer before application.

Thinning

The material may be thinned by adding up to a maximum of one quart of water per gallon, for the first coat.. For best results, it is not recommended to thin the final coat.

PACKAGING
1 gal can & 5 gal pail
Advantages
  • Fast Drying
  • Semi Gloss
  • Easy to Use
  • Excellent Adhesion
  • UV Resistant
  • Lacquer Finish
  • Easy to Re-coat
Inspection

Substrate must be clean, dry, and free of grease, paint, oil, dust, curing agents, or any foreign material that will prevent proper adhesion.; Over previously coated systems, surface must be structurally sound with no peeling or flaking.; Over sheet metal, metal should be bonderized, clean and free of rust.; If galvanized metal is used, it must be free of oil and abraded.

Shelf LIfe
3 years in unopened packaging
Limitations

This product is designed for professional use only.; Apply in thin coats.; Concrete must be free of sealers, wax, or curing agents.; Be sure to paper off any areas that you do not want stained.; Will not hide imperfections or stains in concrete.; Fast stain will stain concrete and can produce a mottled look. Colors and effects will vary.; Do not allow any westcoat products to freeze.; Read product specification sheets for every product you will be using before beginning the project.; Stains are translucent and somewhat transparent.; For interior use only.; Caution: when mixed with acetone, product is extremely flammable

Technical data

Table 1 of 2

7 rows
CharacteristicValueUnit
Density8.5lbs/gal
Gloss (60Degrees)88.0—
Solids By Volume18.8%
Solids By Weight20.1%
Specific Gravity1.0—
Viscosity56.0cPs
Viscosity46.0KU

Table 2 of 2

8 rows
CharacteristicValueUnitMethod
Adhesion on Concrete5.0—ASTM D3359
Foot Traffic (Over Concrete, 72°F)1.0hours—
Foot Traffic (Sealed Surface, 72°F)1.5hours—
Full Cure (6mil)72.0hours—
Pencil Hardness2H——
Reducer/Clean UpWater——
Tack Free (Over Concrete, 72°F)30.0minutes—
VOC Contentmax. 50gm/l—

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