PART 1 – GENERAL

DESCRIPTION
Decorative cementitious coatings consist of acrylic mastics combined with LeHigh cement based dehydrating powders and graded silica applied over concrete in a series of sprayed and troweled applications to form a durable and attractive traffic area.

JOB CONDITIONS

• Environmental conditions during time of scheduled application must be given highest priority.
• These conditions include, but are not limited to, ambient temperature, humidity, wind, rain, substrate moisture and surface contaminants.
  Work area must remain dry during application.

PROTECTION

• Protect all phases of the deck application from moisture, freezing and foot traffic until the product has completely dried.

PERFORMANCE CRITERIA

Thickness (typical)………………………………………....1/8”
Bond Strength (ASTM C297)…………………………..459 psi
Accelerated Aging Test(ASTM A756 D & E)………………………..unaffected
Freeze – Thaw(ASTM C-67)…………...No breakage/<1% weight loss
Slip Resistance (S.C.O.F.)(ASTM C-1028)…………………...81 West – 1.03 Dry
Abrasion Test(ASTM D-1234)……….....0328 in. = 3000 psi concrete
Absorption Test(ASTM D-570)…………………………….…….12.7%
Weather-o-meter(ASTM G-23)………………………….....…unaffected
Percolation Test Abraded Sample(ASTM D-1243) 48”/48 hrs…………………….<.01%
Chemical Resistance(ASTM D-2299) 12 reagents………………..unaffected
Impact Resistance(mil D-3134 F)…………………..No breakage/<.062 in.
Concentrated Load Test(500 lb.)……..No breakage/<.001 in. Residual Indention
Fire Resistance(ASTM E108/UBCSTD #32-7/UL 790)…….…Class A

END OF SPECIFICATION

PART 3 – EXECUTION

EXAMINATION & PREPARATION OF CONCRETE

• Concrete shall be structurally sound with required reinforcement and footings.
  Place and finish concrete in a skilled and work-man-like manner.
• Install control joints throughout concrete as required, to prevent structural cracking.
• Remove dirt, loose deck, paint, grease, oil, curing compounds or other foreign substances.
• Provide surface drainage at all points of no less than 1/4” per linear foot. Drainage correction is not guaranteed in the deck application.

APPLICATION

• Clean concrete surface with high-pressure power washer, if required.
• Treat cracks and repair surface damage and make corrective measures on concrete if necessary.
• Provide protective masking at adjacent areas.
• Roll or spray deck additive upon the area to be coated. Allow to dry and become transparent.
• Mix deck base coat using mechanical agitation for at least five minutes.
• Apply deck base coat, when necessary, using pattern gun, squeegee or trowel uniformly over area to be coated, to minimum of 1/16 inch thickness and allow to dry.
  OPTIONAL MASONRY EFFECTS –
  • Spray Acrylic Finish Coat grout color, allow to dry and place.
  • Masonry Effect Templates within color grout area.
• Mix texture coat using mechanical agitation for a minimum of five minutes.
• *The texture coat should be slightly thicker than the base coat as in part E*
• Spray Texture coat using pattern pistol over 80-90 percent base coat.
• Lightly trowel moist texture in a uniform motion.
• Scrape, sweep and detail dried texture coat.
• Roll or spray Acrylic Finish Coat color. Masonry effect must be sprayed, rolling the finish coat will cause a lot of bleed through under the template.
  OPTIONAL MASONRY EFFECTS-
  • Remove Masonry effect templates or tape and apply clear finish coat.
• Remove all protective masking upon drying of clear finish coat, if applicable.

NOTE: Base coat is recommended on ALL old concrete application where the concrete is over 28 days old.