Durabak Depot

1297 Sussex Road Teaneck, New Jersey
Phone: (888) 613-4501
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Application Instructions

1. How to Apply

2. Roller Application

3. Brush Application

4. Coverage

5. Spray Application

NOTE: Application instructions for all DURABAK™ variations are identical unless otherwise noted.



1. HOW TO APPLY

DURABAK™ for roller, brush or spray applications, is available in one-quart and one-gallon containers. For volume applications, it is also available in five-gallon containers by special order.

Before applying DURABAK™, it is important that the surface to be coated is completely clean and dry. (See Surface Preparation) Mask all areas not to be coated. Remove masking tape as soon as possible after application of second coat, using a razor knife to cut along the taped edge.

IMPORTANT NOTE - READ CAREFULLY! DURABAK™ contains flammable solvents. Ensure proper ventilation and fire precautions.


2. ROLLER APPLICATION

Apply DURABAK™ with special, open-foam stipple roller. Use only a DURABAK™ special stipple roller, which is designed to evenly distribute the embedded rubber granules on application - other rollers will cause clumping of the rubber granules. Roller sleeves are available in 9" and 4" sized. One 9" roller sleeve is good for approximately 1 to 1½ gallons.

Apply first coat of DURABAK™ as a thin coat to fully cover. When touch dry - usually within 1½ to 3 hours - apply second coat. To avoid "mud cracking" or pooling, do not apply DURABAK™ thickly. Between coats, pour a small amount of Xylene over rollers, so rollers will not dry out. Intercoat / curing time may be significantly shortened by the use of the special accelerator (see section on accelerator). Extreme climactic conditions of heat, humidity and cold can shorten or lengthen this period.

NOTE: DURABAK™ clear must be applied in thin coats to avoid bubbling. The smooth version of DURABAK™ should be applied with a 3/16" nap mohair roller or a high density foam varnish roller.


3. BRUSH APPLICATION

DURABAK™ can be applied with a soft paint brush, in two coats at right angles to one another. (DURABAK™ is not a paint, and should be laid onto the surface, in one direction, not brushed out as an oil or latex paint.) Between coats, clean brush well with Xylene, only. The second coat can be applied as soon as the first coat is touch dry (usually within 1½ to 3 hours). Extreme climactic conditions of heat, humidity and cold can shorten or lengthen this period.


4. COVERAGE

One quart covers a flat area of about 15 square feet in two coats; one gallon covers approximately 60 square feet with two coats, with a final dry coat thickness of approximately 25 mils.

IMPORTANT ADVICE!

  • DURABAK™ should be stirred thoroughly before applying - preferably with an electric paint mixer attachment - as shaking can will not distribute rubber granules evenly.
  • Stir periodically to maintain rubber granules in suspension.
  • To avoid "mud cracking" or loss of slip-resistance, do not allow DURABAK™ to pool.
  • DURABAK™ is a moisture-cured product. An open or partially used can will thicken and eventually become unusable. Seal can well and turn upside down for a few seconds. This will seal any space in the can and may prolong the life of the unused portion of DURABAK™. Putting unused portion into a smaller container may help prolong the life of the product, as well. Make sure that the rim of the new container remains free of DURABAK™ to avoid difficulty in reopening the container.
  • If the product thickens slightly, it can be thinned by using up to 15% Xylene without affecting performance.

PLEASE NOTE:

  • Other solvents can cause product failure. Do not dilute product or clean rollers, brushes or spray guns with lacquer or alcohol-based thinners.
  • Once the consistency of the product has become pasty and unmixable, it should be discarded. If DURABAK™ is thick, but still liquid, it can be thinned with Xylene and used.
  • Normally, DURABAK™ can be subjected to light foot traffic within 6 to 12 hours of application. It takes approximately 4 days to fully cure: less in hot humid conditions, and more in cold dry weather. The coating should not be subjected to cleaning or chemical exposure until fully cured. For specific extreme kinds of loading, consult your DURABAK™ dealer.
  • An accelerator can be used to decrease drying time under the following conditions:

    HOT / HUMID

    HOT / DRY

    COLD / DRY

    DURABAK™

    NO

    OPTIONAL

    OPTIONAL

    DURABAK 18™

    NO1

    NO

    OPTIONAL2

    1Do not use an accelerator with DURABAK 18™ in hot/humid weather. It may increase drying time.
    2Please check with us before using accelerator with DURABAK 18™.
  • With DURABAK™ (but not with DURABAK 18™) an accelerator can be used in dry, cold temperatures, the dry/cure time of DURABAK™ can be reduced significantly by using Durabak Depot's accelerator. In hot, humid weather, an accelerator is not necessary. In the case of DURABAK 18™, an accelerator will not work to decrease the drying time.
  • PLEASE NOTE that full curing time only affects the amount of time required to wait before subjecting the surface to cleaning and chemical exposure. Surface can be subjected to loading and light foot traffic long before this minimum time requirement.

5. SPRAY APPLICATION

DURABAK™ can be sprayed using a simple shutz gun, a hopper gun, or professional spray equipment. Make sure to thoroughly mix DURABAK™. A drill with a mixing adaptor works best. DURABAK™ should flow through the spraygun easily and can be thinned with Xylene.

  1. Durabak's shutz gun with a ¼" orifice (and no filter), attached to a 45-60 psi compressor.
    • Attach spray gun to compressor air line, giving pressure of 40 to 60 psi.
  2. Use a conventional spray gun, such as Binks #2001, with the following specifications, or equivalent: 67 fluid nozzle; 567 fluid needle; 67 PB air cap; heavy-duty (#54-1372) needle spring; 2-28 teflon fluid packing; ½" I.D. (#71-283) fluid hose with 3/8" connectors (#72-1333), and 3/8" I.D. air line with ¼" connectors (#71-1355).
    • To remove contaminants from the air line, use Oil & Water extractors mounted at the pressure tank.
  3. Sears Craftsman No. 15524 (or De Vilbiss AS 300) with external mix nozzle. Requires 7 CFM. Use compressor with 9 CFM at 50 psi. (For more information, call De Vilbiss Air Power Tools at (901) 423-7983.)
  4. Airless spray gun: Graco Bulldog 33:1 with air intake pressure = 6-7 bar (90-100 psi). Outlet pressure = 100 bar (+/- 3000 psi). Tip: 0.039 ins (ie 35-39 thou). Delivery rate: 2.9 gallons per minute.
  5. For smooth DURABAK™, Graco Bulldog 33:1 with 21-23 thou. tip.
    • Use a respirator with chemical absorbing cartridges, such as Binks #40-128.
    • Before starting the job, spray a few short bursts away from the surface to test that everything is working properly.
    • If DURABAK™ does not spray easily and evenly, thin with Xylene.
    • Spray an even coat over the entire surface to be covered. Be careful not to apply coat too thickly.
    • When surface becomes tacky - between 30 minutes and a few hours, depending on weather conditions - spray second coat. Extreme climactic conditions of heat, humidity and cold can shorten or lengthen this period.
    • Intercoat / curing time can be significantly shortened by use of special accelerator (see section on accelerator).

IMPORTANT ADVICE!

  • Spray gun manufacturers often change model numbers. Consult individual manufacturers for superceded models.
  • Remove any over-spray immediately with Xylene. Once cured, DURABAK™ is very difficult to remove.
  • Solvents released when spraying are flammable. Observe all fire precautions. Proper ventilation is required.
  • Clean spray gun between coats and immediately after job is completed. Use only Xylene.