High Performance Coatings ME- Building Group

SECTION 099600 – HIGH PERFORMANCE COATINGS

PART 1 - GENERAL

1.1  RELATED DOCUMENTS

  1. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2  SUMMARY

  1. This Section includes surface preparation and application of high-performance coating systems.

1.3  SUBMITTALS

  1. Product Data: For each type of product indicated.
  2. Samples for Initial Selection: For each type of finish-coat product indicated.
  3. Product List: For each product indicated. Cross-reference products to coating system and locations of application areas. Use same designations indicated on Drawings and in schedules.

PART 2 - PRODUCTS

2.1  HIGH PERFORMANCE COATINGS, GENERAL

  1. Material Compatibility:
  2. Provide materials for use within each coating system that are compatible with one another and substrates indicated, under conditions of service and application as demonstrated by manufacturer, based on testing and field experience.
  3. Provide products of same manufacturer for each coat in a coating system
  4. Colors: As selected by Architect from manufacturer’s full range.

2.2  VINYL ESTER ARCHITECTURAL COATINGS

  1. Products: Use Sherwin Williams “Cor-Cote VEN” Vinyl Ester Novolac or an approved substitute by the Owner, two-component, vinyl ester.

PART 3 - EXECUTION

3.1  EXAMINATION

  1. Examine substrates and conditions, with Applicator present, for compliance with requirements for maximum moisture content and other conditions affecting performance of work.
  2. Maximum Moisture Content of Substrates: Calcium Chloride test as per ASTM F1869:
  3. Concrete: Do not proceed with application with MVE greater than 3 pounds in a 24 hour period.
  4. Verify compatibility with and suitability of substrates, including compatibility with existing finishes or primers.
  5. Begin coating application only after unsatisfactory conditions have been corrected and surfaces are dry.
  6. Coating application indicates acceptance of surfaces and conditions.

3.2  PREPARATION

  1. Comply with manufacturer’s written instructions applicable to substrate indicated.
  2. Clean substrate of substances that could impair bond of coatings, including dirt, oil, grease, curing compounds, and other contaminants.
  3. Concrete Substrates: Remove release agents, curing compounds, efflorescence, and chalk. Do not coat surfaces if moisture content or alkalinity of surfaces to be coated exceeds that permitted in manufacturer's written instructions.
  4. After cleaning, remove defective concrete, honeycombs, cavities, joint crack voids and other defects by routing to sound material.
  5. Smooth formed concrete surfaces must be cleaned, roughened and made absorptive by abrasive blasting or shotblasting. Following surface preparation, the cleaned surface must have a minimum surface tensile strength of 250 psi when tested with an Elcometer or similar pull tester (ASTM D4541).
  6. The Surface must be dry prior to application. Before application of the coating, use the “Calcium Chloride test” (ASTM F1869) to evaluate moisture level in concrete.
  7. New concrete shall be allowed to cure for a minimum 28 days at 75 deg F. Remove any surface hardener or curing compounds.

3.3  APPLICATION

  1. Apply high-performance coatings according to manufacturer's written instructions.
  2. Use applicators and techniques suited for coating and substrate indicated.
  3. Apply coatings to produce surface films without cloudiness, spotting, holidays, laps, brush marks, runs, sags, ropiness, or other surface imperfections. Produce sharp glass lines and color breaks.

3.4  CLEANING AND PROTECTION

  1. At end of each workday, remove rubbish, empty cans, rags, and other discarded materials from Project site.
  2. After completing coating application, clean spattered surfaces. Remove spattered coatings by washing, scraping, or other methods. Do not scratch or damage adjacent finished surfaces.
  3. Protect work of other trades against damage from coating operation. Correct damage by cleaning, repairing, replacing, and recoating, as approved by Architect, and leave in an undamaged condition.
  4. At completion of construction activities of other trades, touch up and restore damaged or defaced coated surfaces.

3.5  INTERIOR HIGH-PERFORMANCE COATING SCHEDULE

  1. Concrete Substrates, Horizontal Surfaces:
  2. Vinyl ester, Colored, Two-Component Coating System:
  3. Prime Coat: Apply a prime coat of Sherwin Williams “Corobond” Vinyl Ester Primer to properly prepared surface per manufacturer’s written recommendations. Allow to cure per manufacturer’s recommendation for temperature and humidity conditions.
  4. Topcoat: Apply Sherwin Williams “Cor-Cote VEN” Vinyl Ester Novolac to the primed surface with a short nap roller, brush, or spray per manufacturer’s written recommendations.
  5. Repair surface blemishes, pits, and cracks using Sherwin Williams GP3580 Epoxy Crack and Joint filler installed per manufacturer’s written instructions.

END OF SECTION

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Revision Date: 01/21/14 Project & Bid Package

File name: 099600 HIGH PERFORMANCE COATINGS