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GUIDE SPECIFICATION
VAPORSEAL-DB™
Copyright 2001, Dependable Chemical Company, Inc. PO Box 16334 Rocky River, OH 44116 (800) 227-3434
Section 07260
Vapor Retarders
or
Section 09601
Concrete Floor Sealer
Part 1 – General
Section includes
Furnish all labor, materials, tools and equipment as necessary to perform installation of Concrete Floor Sealer on new and/or existing concrete slabs as shown on drawings and as specified in this section.
Repairs and preparation of concrete floors.
Related Sections: (Delete or add necessary Sections)
See section 09620 – Specialty Flooring.
See section 09630 – Masonry Flooring.
See section 09640 – Wood Flooring.
See section 09650 – Resilient Flooring.
See section 09680 – Carpet.
References
ASTM F 1869 – Standard Test Method for Measuring Moisture Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride; 1998.
ASTM C 96 – Standard Test Methods for Water Vapor Transmission of Materials; 1995.
ASTM D 4541 – Pull-Off Strength of Coatings; 1995, Modified.
Submittals
General:
Submit manufacturer’s certification that proposed materials, details and systems as indicated and specified fully comply with manufacturer’s details and specifications. If any portion of Contract Documents do not conform to manufacturer’s standard recommendations, submit notification of portions of design that are at variance with manufacturer’s specifications.
Product Data:
Submit manufacturer’s literature, installation instructions and MSDS for each product.
Quality Assurance
Manufacturer Qualifications:
Company specializing in manufacturing floor sealing and floor leveling materials that will upon application and inspection of installation, provide a ten year warranty that moisture emission will not exceed three pounds per 1000 square feet per 24 hours or manufacturer will repair or replace floor.
Installer Qualifications:
Trained and licensed by the product manufacturer or documented experience acceptable to the product manufacturer.
Delivery, Storage and Handling
Deliver and store in a dry, well-ventilated area at minimum 50 deg. F (10 deg C) and maximum 90 deg F (32 deg C).
Deliver materials in manufacturer’s unopened containers, fully identified with brand, type, grade, class and all other qualifying information. Provide Materials Safety Data Sheets for each product.
System Requirements
Coordinate floor sealing installation with other trades.
Provide materials and accessories in timely manner so as not to delay work.
Project Conditions
Maintain surfaces to be sealed and surrounding air temperature at not less than 50 deg F. (10 deg C).
Exercise caution when temperatures exceed 90 deg F. (32 deg C).
Part 2 – Products
Manufacturers
Approved Manufacturers: Dependable Chemical Company, Inc. PO Box 16334 Rocky River, OH 44116-0334 Phone: (800) 227-3434 Fax (440) 333-0070.
Requests for substitutions will be considered only if submitted to the architect/engineer in writing and must include substantiation of product performance.
Materials
Concrete Floor Sealer – two-component, moisture tolerant, high density, low odor epoxy based product with the following characteristics:
1. Product: VAPORSEAL-DB‘
2. Component – A and B: Precise blend of clear and amber liquid.
3. Bond/Adhesion: (ASTM D-4541, Modified) 500 psi (3.45Mpa) at 28 days on moist concrete
4. Permeance: (ASTM E-96) 0.43 perms (2.64E-08 grams/PA*s*m2) [When applied to control with 16.95 perms(9.69 E-07 grams/PA*s* m2)]
Part 3 – Execution
Examination
Examine all construction substrates and conditions under which concrete floor sealer material is to be installed. Do not proceed with the concrete floor sealer installation until unsatisfactory conditions are corrected.
Preparation
Protect adjacent surfaces not designated to receive concrete floor sealer.
Substrate preparation:
Remove existing floor coverings, coatings, adhesives curing compounds, efflorescence, dust, grease, laitance, etc down to bare concrete,. with steel shot blasting, high pressure water or abrasive (sand) blasting. Acid etching is not recommended.
Provide surface profile ICRI CSP 3 (ICRI, Sterling, VA, Guideline No. 03732.).
Check the surface for absorption and absence of sealers by placing dime-sized drops of water on it. Water should penetrate the surface within 30 seconds. If water beads, the surface is not ready for coating. A core should be taken and analysis done to verify depth of penetration by the sealer. Report findings to Dependable for approval.
VAPORSEAL DB should have intimate contact with the concrete. However, if deteriorated areas exist that require repair/replacement, repairs shall be completed with material unaffected by water. Floor irregularities should normally be completed over VAPORSEAL DB with a suitable leveling material like SKIMFLOW ES or SKIMCRETE XL.Carefully dampen all the surfaces to be treated with clean water, leave no standing water. Maintain a damp substrate.
Joint Treatment
Expansion Joints – Expansion (moving) joints should be left in tact. VAPORSEAL DB is not warranted for structural movement at expansion joints. To help reduce moisture emissions here, coat the walls and the bottom of the cleaned joint. Sawcut / Control Joints – Sawcut (non-moving) joints that are over 6 months old may be filled with VAPORSEAL DB. Pour VAPORSEAL DB to depth. If creating a mortar, pour VAPORSEAL DB to ¾ depth and pour sand into the material. When dry sweep away excess sand leaving a coarse layer.
Installation
Mix concrete floor sealer material in proportions recommended by manufacturer.
Apply concrete floor sealer material in quantities and in manner set forth in manufacturer’s full written directions, technical bulletins and recommendations.
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Application Rates and Yield of 2.1 gal. (8.1L) kit
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Moisture Vapor emission rate *
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Relative Humidity Testing**
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Number Of Coats
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Application Rate |
Yield per 2.1 gal. kit
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Approx. Thickness
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lb/24H/1000 SF
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ft2/gal |
ft2
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mils
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| 0-15 |
<90
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1
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110 |
265
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14
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15-20
New Concrete (min. 7 days old)
Oil Contaminated slab. |
90-95
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1
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90 |
216
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18
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| 20-25 |
<97
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1
|
70 |
168
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23
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*(tested in accordance with ASTM F1869)
**(tested in accordance with ASTM F2170)
Walls: contact our technical dept.
Note: all values are theoretical. Application thicknesses are approximate.
Some variations may apply due to porosity and absorption of substrate. |
Spread using a broom or squeegee to the still moist or dry substrate, and carefully scrub it into the pores with a long handled brush or broom. Follow with a product soaked roller to achieve a uniform coverage.
To smooth and prepare for floor covering installation, install Dependable leveling course as per directions and recommendations.
Self-Leveling: DEPENDABLE SKIMFLOW ES
Trowel Grade: DEPENDABLE SKIMCRETE XL
Where specified install floor covering as per manufacturer’s directions and recommendations.
Acceptance
Remove left over materials and any foreign material resulting from the work from the site.
Clean adjacent surfaces and materials. |
