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PolyBrite® 70 is a 100% acrylic, premium grade water-based elastomeric coating which cures to form a seamless membrane. PolyBrite® 70 reduces roof temperatures, extends the life cycle performance of new and existing roof systems, and provides protection from ultraviolet sunlight and other weather exposures.

Product Type: Elastomeric Coating, Waterborne Coating

Features: Excellent Dirt Pick-up Resistance, Fungus Resistant, Good UV Protection, Good Weather Stability, High Elongation, High Tensile Strength, Low VOC, Service Life Extension, Sunlight Resistant, UV Resistant, Water-based

Application Area: Masonry, Roofing Substrates

Compatible Substrates & Surfaces: Concrete, Metal, Polyurethane, Wood

Application Method: Brush, Roller, Spray

Chemical Family: Acrylics & Acrylates

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Identification & Functionality

Carrier
Chemical Family

Features & Benefits

Labeling Claims
Features & Benefits
  • Extends the useful life of the roof.
  • UV resistant.
  • Decreases roof surface temperature, which can reduce energy costs.
  • Offers high tensile strength and elongation.
  • Resistant to dirt pick up and is fungal and algal resistant.
  • Low VOC
  • Non-flammable.
Benefits
  • Polyglass offers all the product components needed for these systems – one stop shop
  • A variety of systems which can be used on new construction or tear off and replace roofs
  • Offers excellent resistance to extended exposure to solar ultraviolet energy
  • Can decrease the roof surface temperature, thereby reducing energy costs
  • Superior tensile strength for a strong roof
  • Easy to install, no kettle, no torch and no special tools or equipment needed other than a heavy roller
  • Much safer than traditional hot asphalt BUR or torch down systems
  • Should reduce the cost of insurance for the roofing contractor
  • Low VOC and odor - presents minimal hazard to the applicator or the environment
  • Resistant to dirt pick-up – easy to maintain
  • Fungal and algal resistant

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Uses
  • Suitable for use on various conventional smooth and granulated BUR and polymer modified roof membranes with smooth and mineral surfacing, sprayed polyurethane foam, most metal roof systems, single-ply membranes, concrete, exterior-grade plywood, rigid coverboards such as Securock®. A substrate adhesion test is recommended prior to product application.
  • Suitable for use on cementitious stucco, EIFS and other masonry surfaces.
  • PolyBrite 70 is available in a quick-set version (PolyBrite 70-QS).
  • Primers or special precautions may be needed, consult Polyglass Technical Services.
Application Instruction

Surface Preparation

  • All surfaces to receive coating must be clean, dry and free from any foreign matter such as dirt, oils, grease or other debris that could inhibit the adhesion capabilities of the newly installed products. Metal surfaces that display rusting or other oxidation, to be prepared with a grinder or wire brush as needed to remove surface contaminants.
  • Visually inspect existing roof systems for conditions that may adversely affect adhesion of performance of newly installed products. Repair any visible deficiencies such as splitting, blistering, and buckling with PolyFlash 1C or PolyBrite 73 Elastomeric Flashing Compound with StretchSpan Technology™ and PolyBrite Polyester Fabric.
  • Repair any metal and non-metal flashings, edges, drains, valleys and through-roof penetrations.
  • Do not apply to wet or damp surfaces, or surfaces previously covered with coal tar based products or Kynar® finishes.
  • Concrete surfaces cured with wax/resin based compounds can inhibit adhesion. Proper preparation is required, contact Polyglass Technical Services for proper procedure.

Application

  • Stir well prior to application. To field tint this product, please use a water-based, exterior-grade pigment.
  • Apply with airless sprayer for best appearance and coverage, however the product may be applied by roller or brush applications.
  • Apply at 24 wet mils (1.5 gallon per 100 square feet maximum) per coat. Typical application conditions require two coats at 24 wet mils per coat. To minimize potential voids or pinholes in coating application, apply second coat perpendicular to the first.
  • Let the first coat dry a minimum of 4 hours prior to applying the second coat. Note: Weather conditions can prolong dry time.
  • Apply only when ambient temperatures are 50ºF and rising. Cold weather could result in uneven application and improper curing of product. Do not apply if there is a threat of inclement weather within 24 hours of application or the temperature of the roof surface is over 140ºF.
  • Do not thin product. Do not heat outside of container. Do not apply at temperatures greater than 120ºF.
  • This product should not to be used where ponding water conditions exist

Cleaning

  • Clean equipment and overspray with water.
  • Clean hands with waterless hand cleaner.
  • Application tools and equipment can be cleaned with lukewarm water and soap, followed by a rinse of isopropanol, acetone, or Simple Green®. Recirculate through lines and gun until residual coating is removed.
  • Do not use mineral spirits, xylene, toluene, or VMP & naptha solvents.
Application Types
  • Spray
  • Roof Brush
  • Roll

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Viscosity28000 - 58000cPBrookfield 4d/5 RPM/77°F
Solids (By Volume)51 - 55%ASTM D2697
Solids (By Weight)61 - 65%ASTM DI644
Elongation230 - 290%ASTM D2370
Tensile Strength235 - 335psiASTM D2370
Permeance7 - 13permsASTM D1653
Water Swell5 - 7%ASTM D471
Accelerated Weathering (1000h, No Cracking, No Checking)PassASTM D4798
Adhesion (Over Approved Substrates)PasspliASTM C794/ASTM D903
Fungi resistance (Rating)PassASTM G21
Tear Resistance65 - 75lbf/inASTM D624
Low Temp Flexibility (After 1000h Weathering, 1/2" Mandrel, 26°C)PassASTM D522
VOCmax. 50g/lCalculated
Weight10.5 - 11.5lb/galASTM D1475

Regulatory & Compliance

Applicable Standards
  • Meets or exceeds the requirements of ASTM D6083-18 Type I and Type II Standard Specification for Liquid Applied Acrylic Coating Used in Roofing
  • UL Classified – File #R14571
  • FM Approved (White only)
  • ICC ESR-4038
  • Can be used to comply with 2016 Title 24 Part 6 Cool Roof Requirements (White only)
  • CRRC Listed (White only)
  • Texas Department of Insurance
  • Florida Building Code
  • Miami-Dade County Product Control Approved
  • Listed by California State Fire Marshal

Packaging & Availability

Packaging
  • 4.75 Gallon (17.9 Liters) Pail
  • 50 Gallon (189 Liters) Drum
  • 275 Gallon (1039.5 Liters) Tote

Storage & Handling

Storage & Handling
  • All containers should be sealed when not in use.
  • Keep from freezing.
  • Store between 40°F and 100°F.
  • Observe normal safeguards for storing and handling of this product prior to and during application.
Shelf Life

Shelf life is 18 months if stored in original unopened containers.