Description
PDF FORMS: DATA SHEET SDS: Polaroof RAC-OZ , OZ Catalyst
POLAROOF RAC-OZ
Chemical-Resistant Reflective Urethane Roof Coating. Extreme Durability & Waterproof Protection.
POLAROOF RAC-OZ is a high-performance, solar-reflective urethane waterproof coating powered by advanced oxazolidone (OZ) technology. Engineered for extreme durability, total waterproofing, and superior chemical and oil resistance, it is ideal for roofing systems exposed to harsh industrial, commercial, and food-processing environments.
Formulated to deliver exceptional strength, POLAROOF RAC-OZ creates a seamless, fully adhered membrane that resists water intrusion while providing outstanding protection against oil, grease, lubricants, and aggressive chemical exposure. Its enhanced toughness significantly improves resistance to impact, punctures, and roof traffic, making it well-suited for high-abuse areas.
The reflective aluminum finish helps reduce heat absorption and energy costs, while the advanced OZ chemistry prevents grease buildup and simplifies maintenance. POLAROOF RAC-OZ also provides fire-retardant protection, helping safeguard roofing systems in environments where grease fires may occur.
The key component in POLAROOF RAC-OZ is approved by Underwriters Laboratories® (UL) and Factory Mutual (FM), ensuring trusted performance in demanding applications.
Key Benefits
- Extreme Durability
Enhanced impact, puncture, and abrasion resistance for high-traffic and industrial environments - Total Waterproofing
Forms a fully adhered, seamless membrane that prevents water intrusion - Chemical & Oil Resistance
Resists oil, grease, lubricants, and aggressive chemicals in demanding conditions - Grease-Resistant Surface
Prevents buildup and adhesion of grease deposits for easier cleaning and maintenance - Fire-Retardant Protection
Helps protect roofing systems in areas exposed to grease and fire hazards - Reflective Energy Efficiency
Aluminum finish reflects solar and radiant heat, reducing roof temperatures and energy costs - Corrosion & UV Resistance
Protects against rust, oxidation, UV degradation, and environmental attack - All-Weather Performance
Maintains flexibility in low temperatures and stability under high heat - Seamless Protection
Creates a high-density, durable membrane resistant to fungal and chemical attack - Easy Application
Apply by brush, roller, or airless spray - Proven Performance
Backed by a 10-year material warranty
Recommended Substrates
Suitable for application over:
- Asphalt and coal tar BUR
- APP and SBS modified bitumen
- EPDM, TPO, PVC, and other single-ply membranes
- Concrete and mineral composites
- Steel, galvanized, and factory-finished metals
- Areas requiring spot repair with exposure to corrosive chemicals
- Other approved roofing substrates
Coverage
Approximately 33–50 sq ft per gallon
(Coverage may vary depending on substrate condition and porosity.)
Container Sizes
- 5 gallons POLAROOF RAC
- 1 quart OZ Catalyst
(Combined to yield 5.25 gallons of POLAROOF RAC-OZ)
Color
Bright Silver (highly reflective finish)
Technology
Oxazolidone-Modified Moisture-Cure Urethane System
Preparation and Application
Surface Preparation
Surfaces must be dry, free of dirt, loose debris, oils, grease or any substance that could interfere with adhesion. Surface must remain at least 5°F above dew point during the application and curing process.
Application
Polaroof RAC and OZ Catalyst are combined to become Polaroof RAC-OZ, this is achieved by mixing a one quart unit of OZ Catalyst into a five gallon pail of Polaroof RAC. Mixing will require the use of a power stirrer and should proceed for at least 3 minutes to achieve complete dispersion. Reinforcing over seams is achieved by embedding ROOFAB into a fresh coat of POLAROOF RAC-OZ applied at 15 to 25 mils wet thickness. The fabric is then brushed thoroughly to squeeze the POLAROOF RAC-OZ upwards to remove all voids, fishmouths and dry spots. A second coat is then applied to seal the surface of the fabric. Bolt-heads and complex penetrations should be sealed with sufficient POLAROOF RAC-OZ modified with K CATALYST. As soon as the modified POLAROOF RAC-OZ has dried, it may be coated with additional POLAROOF RAC-OZ.
Application over all types of single-ply roofs requires the preparation detailed above, including reinforcement of seams. Some types of rubber will swell slightly immediately upon application. This is normal, the adhesion process is complete when the original dimensions have returned. New urethane foam should receive 2 coats of POLAROOF RAC-OZ at 15 mils wet thickness per coat. Sudden precipitation will not wash POLAROOF RAC-OZ off when wet or newly applied, but will produce a mottled, dull appearance that is not detrimental to overall appearance. POLAROOF RAC-OZ should never be applied to a wet or damp surface, or pinholes may result.
Spray Application
Utilize a 30:1 airless pump, a 3/8″ moisture excluding hose and a 33 width tip
Recommended Thickness
2 coats yield 30 mils Dry Film Thickness (DFT)
Pot Life
6 hours @70°F (21°C)
Drying Time (to walk on)
24 hours @80°F (70% R.H.)
Total Cure
48 hours (To 56 deg Shore ‘A’) @80°F (70% R.H.)
Clean up
Use Xylene or Aromatic Naptha.
Limitations
Shelf life is 24 months in unopened cans. Part-full cans should be avoided. Storage must be out of direct sunlight at below 90°F to avoid skinning. Once mixed, POLAROOF RAC-OZ must be used within 12 hours.
Read the container label warning and Safety Data Sheet (SDS) for important health and safety information prior to the use of this product.
KEEP AWAY FROM CHILDREN AND PETS
For additional information, contact the Andek Technical Department
Technical Data
| VOC | 180 gms/liter | |
| Moisture Vapor Transmission | 1.57 perms | ASTM E-96 |
| Tensile Strength | 1,800 psi | ASTM D-412 |
| Elongation | 500% | ASTM D-412 |
| Flexibility at Low Temperatures | 180° bend @ -10° C | ASTM C-711 |
| Shore ‘A’ Hardness | 64 degrees | ASTM D-2240 |
| Surface spread of flame |
Class 1 | ASTM E-108 |
| Puncture Resistance |
200 psi | ASTM D-154-79 |
| Viscosity at 70°F |
4,500 cps | ASTM D-446 |
| Solids Content | 84% (B.W.); 92% (B.V.) | ASTM D-1044 |