GENERAL NOTES TO SPECIFIER: THIS SPECIFICATION SECTION HAS BEEN PREPARED TO ASSIST DESIGN PROFESSIONALS IN THE PREPARATION OF PROJECT OR OFFICE MASTER SPECIFICATIONS. IT FOLLOWS GUIDELINES ESTABLISHED BY THE CONSTRUCTION SPECIFICATIONS INSTITUTE, AND THEREFORE MAY BE USED WITH MOST MASTER SPECIFICATION SYSTEMS WITH MINOR EDITING. EDIT CAREFULLY TO SUIT PROJECT REQUIREMENTS. MODIFY AS NECESSARY AND DELETE ITEMS THAT ARE NOT APPLICABLE. VERIFY THAT REFERENCED SECTION NUMBERS AND TITLES ARE CORRECT. (NUMBERS AND TITLES REFERENCED ARE BASED ON MASTERFORMAT, 1995 EDITION). THIS SECTION ASSUMES THE PROJECT MANUAL WILL CONTAIN COMPLETE DIVISION 1 DOCUMENTS INCLUDING SECTIONS 01330-SUBMITTAL PROCEDURES, 01620-PRODUCT OPTIONS, 01630-PRODUCT SUBSTITUTION PROCEDURES, 01660-PRODUCT STORAGE AND HANDLING REQUIREMENTS, 01770-CLOSEOUT PROCEDURES, AND 01780-CLOSEOUT SUBMITTALS. CLOSE COORDINATION WITH DIVISION 1 SECTIONS IS REQUIRED. IF THE PROJECT MANUAL DOES NOT CONTAIN THESE SECTIONS, ADDITIONAL INFORMATION SHOULD BE INCLUDED UNDER THE APPROPRIATE ARTICLES. THIS IS A PROPRIETARY SPECIFICATION FOR MERLEX STUCCO "BLOCKADE FINISHER" CEMENTITIOUS WATERPROOF FINISH. NOTES TO THE SPECIFIER ARE CONTAINED IN BOXES AND SHOULD BE DELETED FROM FINAL COPY. OPTIONAL ITEMS REQUIRING SELECTION BY THE SPECIFIER ARE ENCLOSED WITHIN BRACKETS, E.G: [35] [40] [45]. MAKE APPROPRIATE SELECTIONS AND DELETE OTHERS. OPTIONAL PARAGRAPHS REQUIRING SELECTION OF ONE OF THE OPTIONS ARE SEPARATED BY "OR" WITHIN A BOX, E.G: OR OPTIONAL PARAGRAPHS AND FEATURES THAT MAY BE SELECTED OR DELETED AS DESIRED ARE SHOWN IN BOLD FACE TYPE. DELETE BOLD FACE TYPE WHEN INCLUDING THESE PARAGRAPHS OR FEATURES.

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