Page 89 - Industrial Coatings
P. 89
APPLICATION OF BASECOAT color. Uniform application at the specified coverage rate is
All specified quantities are on an undiluted basis. Better important to provide proper results.
films are usually produced with less entrapped air when the
rate of application is no more than 12 gallons per 100 square Remove masking tape at edges of coating area as soon as
feet. However, the recommended rate varies by product and the final coat of polyurethane is applied. By removing the
specification. tape while the coating is wet, it will not be necessary to cut it
off and will avoid damage to the edge of the coating. Any
Apply Polycoat Products polyurethane in a uniform thickness seepage under the tape on rough surfaces can be wiped off
without skips or holidays. Basecoats can be squeegeed or with thinner while wet.
rolled, depending on job type and size. Allow each coat to dry
until tack free and sufficiently cured for foot traffic before The following conditions must not be coated with Polycoat
applying additional polyurethane coating. A period less than Products deck coating systems: on grade or below grade
one hour to overnight may be required depending on drying slabs, split slabs with buried membrane, sandwich slabs
conditions and the particular product used. with insulation, slabs over unvented metal pan, suspended
pool decks, swimming pools, magnesite or lightweight
For a more slip-resistant surface, uniformly broadcast a concrete, asphalt surfaces or asphalt overlays.
washed, dry, rounded 16 to 90 mesh silica sand into the wet
topcoat at a rate at a rate of 20 lbs/100 sq.ft. or as required to Floor hardeners may adversely affect the adhesion of the
achieve a slip-resistant finish. Slip resistance will vary de- coating.
pending on the coating thickness.
Polycoat Products coating systems should not be subjected
Extend each coat over cants and up vertical surfaces of pads, to rising water tables or hydrostatic pressure on slab-on-
curbs, walls and parapets. The top of curbs and equipment grade applications.
pads shall be similarly coated. In the case of walls and
parapets, extend coating to the point where counter flashings If there is a question regarding a substrate, please contact a
enter the masonry. Where no counter flashing is specified, Polycoat Products representative.
hold the base coats just short of the termination line at the * Approved Polyurethane sealants are: Polycoat Poly-Caulk
edge of the deck to avoid seeping under masking tape or PX27, Polycoats Poly-Caulk 80, Polycoat Poly-Caulk HM,
spilling on adjacent unprotected surfaces. Polycoat PC-260 or a two part consisting of PC-440 and PC-
If the entire job cannot be carried through to completion with- 50.
out interruption, the interruption should occur after the first
coat. This will provide protection for the system.
Coated surfaces must be clean and dry before work re-
sumes.
APPLICATION OF TOPCOAT
Inspect the surface for damage prior to the application of
topcoat. Any surface damage must be repaired by replacing
base coat so that a continuous membrane in substantially
uniform thickness covers the entire surface prior to topcoat
application.
While careful color matching procedures are used, different
batches of polyurethane may vary slightly in hue. This varia-
tion will be too slight to be perceptible if changes are made
at natural breaks in the surface. Intermixing of batches may
be necessary or desirable to ensure consistency in topcoat
color.
CAUTION
Excessively heavy applications of polyurethane can cause
pigment separation during drying, resulting in a blotched
Please read all information in the general guidelines, product data sheets, guide specifications and material safety data sheets (MSDS) before
applying material. Published technical data and instructions are subject to change without notice. Contact your local Polycoat Products represen-
tative or visit our website for current technical data and instructions.
DISCLAIMER
All guidelines, recommendations, statements, and technical data contained herein are based on information and tests we believe to be reliable and correct, but
accuracy and completeness of said tests are not guaranteed and are not to be construed as a warranty, either expressed or implied. It is the users responsibility
to satisfy himself, by his own information and test, to determine suitability of the product for his own intended use, application and job situation and user
assumes all risk and liability resulting from his use of the product. We do not suggest or guarantee that any hazard listed herein are the only ones which may
exist. Neither seller nor manufacturer shall be liable to the buyer or any third person for any injury, loss or damage directly or indirectly resulting from use of,
or inability to use, the product. Recommendations or statements, whether in writing or oral, other than those contained herein shall not be binding upon the
manufacturer, unless in writing and signed by a corporate officer of the manufacturer. Technical and application information is provided for the purpose of
establishing a general profile of the material and proper application procedures. Test performance results were obtained in a controlled environment and Polycoat
Products makes no claim that these tests or any other tests, accurately represent all environments.
14722 Spring Avenue  Santa Fe Springs, CA 90670-5108 USA  Tel: 562/802-8834  Fax: 562/921-7363  www.polycoatusa.com  Copyright March 2011 Polycoat Products