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Part 1 - General
1.01 Summary
A. Section Includes: One component, polymer-modified portland cement
based, decorative, waterproof finish for application over [portland
cement plaster brown coat] [,] [concrete] [and] [masonry] surfaces.
B. Related Sections:
1. Section 03300Cast-in-Place Concrete.
2. Section 03400Precast Concrete.
3. Section 04210Clay Masonry Units.
4. Section 04220Concrete Masonry Units.
5. Section 07161Cementitious Waterproofing.
6. Section 09220Portland Cement Plaster.
INCLUDE APPROPRIATE
LANGUAGE BELOW IF PRODUCTS SPECIFIED IN THIS SECTION ARE TO BE BID
AS
ALTERNATES. OTHERWISE DELETE FOLLOWING PARAGRAPH.
C. Alternates: 1. Reference Section 01230Alternates.
1.02 Submittals
A. Reference Section 01330Submittal Procedures; submit following
items:
1. Product Data.
2. Samples: Minimum 3x3 inch (75x75 mm) material samples of custom
colors.
3. Quality Assurance/Control Submittals:
a. Qualifications: Manufacturer and applicator qualification data.
b. Certifications.
c. Manufacturer's Installation Instructions.
B. Closeout Submittals: Refer to 01780Closeout Submittals; submit
following items:
1. Special Warranties.
1.03 Quality Assurance
A. Qualifications:
1. Manufacturer Qualifications: Minimum five years experience in
producing cementitious waterproofing coatings of the type specified.
2. Applicator Qualifications: Licensed contractor with documented
experience in application of cementitious waterproof coatings.
B. Certifications: Letter signed by manufacturer certifying
that waterproof finsih complies with local regulations governing
use of volatile organic compounds (VOC).
C. Mock-Ups: Apply cementitious waterproof finish to substrate
material mock-up, full or partial coverage as directed by Architect,
and obtain Architect's approval of completed mock-up prior to proceeding
with application.
OR
C. Prior to performing waterproof finish work, apply a sample
of approximately four sf (one m2) in an unobtrusive location, and
obtain Architects approval of sample.
1.04 Delivery, Storage, and Handling
A. Reference Section 01660Product Storage and Handling Requirements.
B. Follow manufacturer's instructions.
1.05 Project/SITE Conditions
A. Environmental Requirements:
1. Do not apply when ambient temperature will fall below 40 degrees
F (4 degrees C) within 48 hours.
2. Do not apply if rain is forecast within 24 hours.
B. Existing Conditions:
1. Do not apply to frozen or frost filled surfaces.
2. Allow new cementitious surfaces, including mortars, to cure minimum
28 days prior to application.
1.06 Warranty
SPECIAL WARRANTIES
ARE AVAILABLE ON A PROJECT BY PROJECT BASIS. CONTACT MERLEX REPRESENTATIVE
FOR DETAILS.
Part 2 - Products
2.01 Manufacturer
A. Adhesive and Coatings: Merlex Stucco, Inc. (Merlex) 2911 Orange-Olive
Road Orange, CA 92865 Tel: (714) 637-1700 Fax: (714) 637-4865
INSERT NAME,
ADDRESS AND PHONE NUMBERS OF LOCAL REPRESENTATIVE BELOW.
1. Representative:
2. Substitutions: None permitted.
COMPLETE THE
FOLLOWING IF USING STANDARD FOAM TRIM SHAPES PRODUCED BY A SEPCIFIC
MANUFACTURER, AND VERIFY THAT PRODUCT NUMBERS ARE NOTED ON DRAWINGS.
OTHERWISE DELETE FOLLOWING PARAGRAPH.
B. B. Product: Blockade Finisher.
C. Substitutions: None permitted.
2.02 Materials
A. Cementitious Waterproof Finish: One component, polymer-modified
proprietary formulation of portland cements, graded aggregates,
and specific chemical additives.
1. Physical Properties:
Compressive Strength ASTM C 109 7 Day: 2250 psi (15 500 kPa) 28
Day: 3800 psi (26 200 kPa)
Tensile Strength ASTM C 190 7 Day: 280 psi (1930 kPa) 28 Day: 400
psi (2750 kPa)
Flexural Strength ASTM C 348 7 Day: 675 psi (4650 kPa) 28 Day: 1000
psi (6900 kPa)
Water Absorption ANSI A118.6 24 Hours: 7.85 percent
Accelerated Weathering ASTM G 23 (Carbon Arc) 2000 Hours: No surface
cracking, blistering, flaking, chalking, crazing, or other deleterious
effects
Salt Spray ASTM B 117 No effect after 300 hours
Freeze-Thaw ASTM C 67 50 Cycles: Passed
Hydrostatic Pressure ASTM D 4068 72 inch (1830 mm) limit of water
Manometer: No leakage
2. Color: [White] [Oyster] [Natural grey] [Custom color as selected
by Architect].
B. Water: Potable.
Part 3 - Execution
3.01 Examination
REVIEW
MERLEX REQUIREMENTS FOR PREPARATION OF VARIOUS SURFACE MATERIALS
AND VERIFY THAT OTHER SECTIONS OF THE PROJECT MANUAL CONTAIN APPROPRIATE
INSTRUCTIONS TO PREPARE THOSE SURFACES.
A. Examine substrates upon which waterproof finish
will be applied.
1. Verify that surface is structurally sound, clean, free of dust,
dirt, paint products, previously applied water repellents, efflorescence
or other forms of contamination that could prevent proper penetration
of waterproofing.
2. Verify that surface cracks, holes and voids in excess of 1/16
inch (1.5 mm) have been repaired.
3. Verify that smooth surfaces have been properly prepared to achieve
good bond.
4. Consult manufacturer's representative if conditions exist that
are not covered by, or cause conflict with, manufacturer's installation
instructions.
B. Coordinate with responsible entity to perform corrective
work on unsatisfactory substrates.
C. Commencement of work by applicator is acceptance
of substrate.
3.02 MIXING
A. Mix with water in accordance with manufacturer's
instructions using a mechanical mixer.
3.03 APPLICATION
A. Follow manufacturer's instructions for application
by the following method:
1. Hand (hawk and trowel method):
a. Texture: [Light Lace] [Heavy Lace] [Monterey] [Sand Float] [Medium
Sand Float] [Heavy Sand Float] [Scraped] [Spanish] [Spanish Lace]
[Machine Dash] [Machine Dash Knockdown] [ ______________ ] [As shown
on Drawings].
OR
1. Plaster Spray Equipment:
b. Texture: [Machine Dash] [Machine Dash Knockdown] [ ______________
] [As shown on Drawings].
TEXTURES
IN ADDITION TO THE COMMON ONES SHOWN ABOVE CAN BE PRODUCED. CONTACT
MERLEX REPRESENTATIVE FOR DETAILS.
3.04 CURING
A. Damp curing may be necessary during hot, windy
weather; contact manufacturer's representative for requirements.
WHEN
USING HAND APPLICATION, INCLUDE FOLLOWING PARAGRAPH WHEN COVERING
MORTAR JOINT OR GROUT LINES, PATCHES, OR OTHER CONDITIONS WHICH
MAY CAUSE VARIATIONS IN SUCTION.
B. Allow first coat to cure 5 days before application
of second coat.
3.05 CLEANING
A. Clean spills and spatters before material is allowed
to dry.
B. Keep premises free form accumulation of waste and
debris. Upon completion of work, remove surplus materials, waste
and debris from site.
End of Section
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