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Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
- Composition & Materials
Coelan® Primer RC is a two-component, high solids, liquid applied, aromatic polyurethane primer.
Features & Benefits
- Ready-to-Use Product Features
Applications & Uses
- Markets
- Application Area
- Use
Coelan® Primer RC is used to recoat existing polyurethane coated surfaces and to extend the recoat window for Coelan coatings.
- Limitations
The following conditions must not be coated with the Coelan® coating systems or products: on below grade slabs, split slabs with buried membrane, sandwich slabs with insulation, slabs over unvented metal pan, suspended pool decks, swimming pools, magnesite, lightweight concrete, asphalt surfaces and asphalt overlays. Primer may be applied only when the ambient temperature is 50°F (10°C) or rising, and the substrate temperature is a minimum of 5 degrees above the dew point. The primer is not UV-stable and must be coated with the basecoat within 12-16 hours.
- Yield
Refer to System Application Rates. All yields are approximate and may vary depending upon smoothness and absorbency of substrate.
- Surface Preparation
All surfaces must be free from gross irregularities, loose, unsound or foreign material such as dirt, ice, snow, water, grease, oil, release agents, lacquers, or any other condition that would be detrimental to adhesion of the topcoat. Note: Prior to opening the containers of Coelan® Primer RC, wear appropriate safety glasses and protect hands and wrists by wearing gauntlet-type neoprene gloves.
- Application
Apply the primer evenly over the entire coated substrate with phenolic resin core roller or brush. The primer should be applied at the rate of 1 gallon / 300 sf 0.19 liters/m2 ). Coverage rates may vary depending on the surface roughness and porosity. Primer must be fully cured before applying the basecoat. Ensure to protect areas that are not to receive primer as it will penetrate into the surface.
Approximate curing time is 2-4 hours at 75°F (24°C) and 50% relative humidity.
The primer is very sensitive to heat and moisture. Higher temperatures and/or high humidity will accelerate the cure time and low temperatures and/or humidity will extend the cure time. Use caution in batch sizes and thickness of application.
Equipment should be cleaned with an environmentally safe solvent, as permitted under local regulations, immediately after use.
- Mixing of Primer
The volume mixing ratio is 1 part Component A to 1 part Component B. Before application, mix each component individually. Using a mechanical mixer at slow speed mix the two components together until a homogeneous mixture and color is obtained. Use caution not to whip air into the material as this may result in pinhole blisters and/or shortened pot life. Note: Do not dilute primer.
Properties
- Color
- Physical Form
- Physical Properties
- Conditions
* Properties are based on 75°F (24°C) and 50% relative humidity
| Value | Units | Test Method / Conditions | |
| Can be Coated After* | 2 - 4 | hours | - |
| Specific Gravity (Component A) | 1.22 | - | - |
| Specific Gravity (Component B) | 0.98 | - | - |
| Thickness | 4 - 6 | dry mils/coat | - |
| Total Solids (By Volume) | 97.7 | % | ASTM D-2697 |
| Total Solids (By Volume) | 97.8 | % | ASTM D-2697 |
| Usage Time* | 60.0 | minutes | - |
| Viscosity (75°F) | 400 - 600 | cps | - |
| VOC Content | 25.0 | g/l | ASTM D-2369-81 |
Packaging & Availability
- Ordering Information
Item #: Size: CB-RC-2G 2 gallon work pack: 1 gal comp A (3.78 liter) can and 1 gal comp B (3.78 liter) can CB-RC-10G 10 gallon work pack: 5 gal comp A (18.9) pail and 5 gal comp B (18.9 liter) pail
Storage & Handling
- Storage
Always store in cool and dry location. Do not store in direct sunlight or in temperatures below 60°F (15°C) or above 95°F (35°C). Approximate shelf life 12 months with proper storage.
- Disposal
Cured primer may be disposed of in standard landfills. This is accomplished by thoroughly mixing all components. Note: Uncured product is considered a hazardous material and must be handled as such, in accordance with local, state and federal regulations. Do not throw un-cured product away.