December 07, 2022

Everything You Need to Know About the Maintenance of Pecora-Deck 800 Series Deck Coating

For our first blog post of December 2022, we created a comprehensive list of everything you need to know about the maintenance of you Pecora-Deck 800 Series Deck Coating after application. We broke it down into general maintenance, inspections, cleaning, snow removal and ice control, any repairs to the structure, repairs need for deck coating materials, and finally replacing the topcoat. Check out the list below.

  1. General
    1. Maintenance of Pecora Deck Coating Systems must be performed at regular intervals to assure that the coating system will continue to provide service for which it was intended.
    2. Maintenance procedures should include:
      1. Periodic physical inspections
      2. Cleaning
      3. Snow removal and ice control (where applicable)
      4. Repairs to structure
      5. Repairs to coating system
      6. Periodic replacement of Topcoat and paint striping
  1.  Inspections
    1. The deck coating system is subject to extreme abrasive wear conditions as well as to physical damage from general use and damage resulting from structural problems. Periodic inspections will provide a basis for the proper maintenance work to assure a long life expectancy of the coating system.
    2. Monthly – make a physical inspection to determine if there are any areas of excessive wear or physical damage to the coating.
    3. Semi-Annually – make a thorough physical inspection. Such inspections should include, but are not limited to:
      1. Inspect the sealant in the joints for proper adhesion. Also determine if there is any cohesive failure or physical damage to the sealant
      2. Where possible, inspect the underside of the joints for evidence of leaks.
      3. Inspect the areas where beams are resting on columns for evidence of stress cracking or excessive movement.
      4. Where possible, inspect the entire structure from the underside of the deck for cracks which show evidence of a difference in the plane of the materials on each side of the crack.
      5. Inspect drains or scuppers to ensure there is nothing clogging or blocking them, to avoid ponding water on the deck.
      6. Inspect areas at junctures of horizontal decks and vertical sections (ie: parapet walls, planter walls, building walls, curbs, etc.) to determine if there has been excessive movement at these points which may have caused the coating to crack.
      7. Inspect coating at the base of parking bumpers (in the case of parking deck coating systems) to determine if there has been any damage to coating as a result of movement of the bumper.
      8. Inspect coating surface to determine if there are any substantial structural cracks in the substrate which have caused the coating to crack.
      9. Inspect areas which are subject to high abrasion and wear such as:
        1. Vehicular Traffic Decks: Turn radii, entrance and exit ramps and other start/stop areas for excessive wear loss of aggregate in the coating.
        2. Pedestrian Decks: Top of stair landings, stair treads, doorways, narrow walk-through areas, etc.
        3. Other Decks: Inspect entire surface for high wear areas.
  1. Cleaning
    1. The use and location of the deck will cause the cleaning frequency to vary. Our recommendation for cleaning under average use conditions is as follows:
      1. Weekly – Sweep or vacuum deck to remove loose debris and dirt.
      2. Monthly – thoroughly clean the deck to remove dirt, debris, oil or grease dripping, black tire marks, etc. Cleaning may be by:
        1. Power scrubbing with low suds, biodegradable detergent. This requires thorough rinsing to avoid detergent residues which may cause the deck to be slippery when wet and may cause stains.
        2. High pressure water blast. Water pressure should not be greater than 1,000 psi at nozzle.
      3. Avoid the use of strong solvents, especially hydrocarbon type solvents.
  1. Snow Removal and Ice Control
    1. It should be recognized that piled snow can significantly load the deck surface beyond its design load capacity resulting in significant structural cracks and/or more serious structural damage. Therefore, immediate removal of piled snow is recommended.
    2. The use of metal blades, tire chains and metal studded tires should be avoided at all times to prevent physical damage to the coating system.
    3. Snow Blowers with rubber blades and Snow Brooms are recommended, as opposed to heavy snow removal equipment.
  1. Repair to Structure
    1. All structural repairs should be at the direction of a Structural Engineer.
  1. Repair to Deck Coating Materials
    1. Minor repairs may be made by owner’s maintenance people, however, it is suggested that to protect the manufacture’s warranty, major repairs should be accomplished by the original approved applicator.
    2. Physical damage to the coating system (cuts, tears, burns, etc.):
      1. Remove damage coating materials back to well adhered material.
      2. Thoroughly clean the exposed substrate and existing coating surrounding the area with a clean cloth that has been wet with xylene solvent.
      3. Allow solvent to evaporate (1 hour at 75o F, 50% R. H.).
      4. Install the coating system to the original film thickness, extending each coat onto the existing coating, featheredging the terminating edge of the coating. If multiple coats are required (ie: coating removed to the original substrate), allow 24 hours cure time between coats.
      5. Allow the repaired area to cure for 24 hours (minimum) for pedestrian decks, 48 hours (minimum) for vehicular decks before allowing traffic on the repaired area.
    3. Excessive Wear Areas and Traffic Replacement
      1. Thoroughly clean area with steam cleaner, power scrubber or high pressure water blast.
      2. Allow area to become completely dry.
      3. Scrub area with xylene solvent.
      4. Allow solvent to evaporate (1 hour at 75o F, 50% R.H.).
      5. Apply P-801-VOC Interlaminary Primer at a rate 300-400 square feet per gallon in a thin, even film. Avoid puddles or ponding.
      6. Allow P-801-VOC primer to cure for 1 hour minimum, 8 hours maximum.
      7. Apply continuous membrane coat:
        1. For Pedestrian Decks apply a coat of Pecora 802 Base Coat to the cleaned area at a rate of 50 square feet per gallon. Featheredge terminating edges. Allow to cure overnight at a temperature above 70o F. Lower temperatures will extend the cure time.
        2. For Vehicular Decks apply a coat of Pecora 804 Intermediate Membrane Coat to the cleaned area at a rate of 110 square feet per gallon. Featheredge terminating edges. Allow to cure overnight at a temperature above 70o F.
      8. Open pail of Pecora 806 Topcoat and stir contents to ensure that there is no settlement on the bottom of the pail and that all the pigment is dispersed into the liquid.

NOTE: To ensure color uniformity, all containers should have the same batch number. In the event it is necessary to use pails with different batch numbers, the material should be mixed together.

      1. Apply Pecora 806 Topcoat at a rate of 100 square feet per gallon. Immediately broadcast aggregate into the wet coating and backroll with a wet roller to evenly distribute the aggregate. Vehicular decks require two coats in high wear areas. Allow 24 hours between coats.
      2. Suggested schedule for aggregate. Amounts may require adjustment to match existing coating texture.
        1. Vehicular Decks – 12/20 mesh silica at 50 lbs/100 sq. ft.
        2. Pedestrian Decks – 16/30 mesh silica at 10-15 lbs/100 sq. ft. Pool Decks – 80/100 mesh silica fully covered
        3. Tennis Decks – 80/100 mesh silica fully covered 2 coats
      3. Allow Pecora 806 Topcoat to cure for 48-72 hours before opening to traffic.
  1. Replace Topcoat
    1. To maintain the aesthetics and wearing properties of the Pecora Deck Coating System, it is recommended that the Pecora 806 Topcoat be inspected yearly and replaced every five years. (Actual time required for re-coating will depend upon the use of the deck.) Replace topcoat using the procedure in Section 6.C.


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