Enhanced TDS
Identification & Functionality
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Advantages
The highest quality asphalt used in Chil-Pruf™ CP-24 provides a higher softening point than other asphalts. This results in a longer service life, greater resistance to mechanical abuse, better weathering characteristics, greater flexibility in the cured coating and extreme resistance to weather cracking.
Applications & Uses
- Markets
- Application Area
- Application Method
- Compatible Substrates & Surfaces
- Uses
- CHIL-PRUF™ CP-24 has a broad application range as a vapor retarder and weather barrier over many types of insulations, including fibrous glass, polyurethane foams, glass foams and other low temperature insulation materials.
- It is not to be used with polystyrene foam insulation.
- CHIL-PRUF™ is recommended for use in cold and dual temperature service.
- As a vapor retarder coating, it is used to protect insulation over fittings, piping, tanks, tank heads, process vessels and equipment.
- CHIL-PRUF™ also provides protection for insulation applied on underground pipelines.
- Suggested Specifications
Material Preparation
- Do Not Thin. Stir well, but do not use sticks or boards which would splinter or otherwise contaminate the product.
- Apply only to clean, dry, oil-free surfaces.
- Keep container closed when not in use.
- CP-24 cannot be successfully applied by brush.
- Not recommended for indoor use.
- Outdoor horizontal surfaces must always drain completely; a pitch of at least 1⁄2” per foot (4 cm/m) is required.
- Preparation and Application Information
Insulated Vertical Surfaces
- A two-coat application is recommended; each coat is applied at a coverage rate of 4.85 gal./100 sq. ft. for a total coverage rate of 9.7 gal./100 sq. ft., with CHIL-GLAS® #10 Reinforcing Mesh embedded into the first coat (yielding a dry film thickness of 0.09375 inch).
Large Insulated Expanses
- For large insulated expanses, such as tank tops or horizontal surfaces, a two-coat application is recommended with CHIL- GLAS® #5 or #10 Glass Fiber Reinforcing Mesh embedded between coats; each coat is applied at a coverage rate of 6.35 gal./100 sq. ft. for a total coverage rate of 12.7 gal./100 sq. ft. (yielding a dry film thickness of 0.125 inch).
Spray Application
- The following equipment (or equal) is recommended for spray application of CHIL-PRUFTM CP-24 coating.
Pump Graco 45:1 King Airless, Graco Checkmate pump,
68:1 ratio on 200 cc lower with NXT 6500 air motor or
Checkmate pump, 63:1 ratio on 100 cc lower,
NXT3400 motorInductor Plate and
RamFor 55 gal. drum, Graco D200, or for 5 gal. pails,
Graco D60Fluid Hose 1⁄2” ID (12 mm) minimum up to 50 feet (15 m) and 3⁄4”
ID (19 mm) over 50 feet (15 m) is recommended.
Working pressure 5,000 psi, burst 16,000 psiGun Graco Mastic or textured coating spray guns with
Reverse-A-Clean tipsTip Sizes Graco Reverse-A-Clean tip 0.035” to 0.045” orifice
Temperature Store in a heated area. The temperature of the CP-
24 should be at least 70°F (21°C) before spraying
(the capacity of inline heaters is too low to be
effective)
Properties
- Color
- Physical Form
- Typical Properties
- Application Properties
- Note
¹ - Chil-Pruf™ Coating meets the permeance requirements of ASTM C755-19 for below ambient vapor retarder coatings.
² - Temperature, humidity and film thickness will affect drying time
| Value | Units | Test Method / Conditions | |
| Wet Weight | 8.5 | lbs./U.S. gal. | ASTM D1475 |
| Average Non-Volatile (by Volume) | 60 - 64 | % | ASTM D2369 |
| Service Temperature Range (to which dry film is subjected) | -60 to 300 | °F | |
| Water Vapor Permeance (at at 2.4 mm film thickness)¹ | 0.02 - 0.03 | perms | ASTM F1249 |
| Coverage Range | 10 - 13 | U.S. gal./100 sq. ft. | - |
| Drying Time (to touch)² | 2 | hours | |
| Drying Time (Through)² | 24 | hours |
| Value | Units | Test Method / Conditions | |
| Application Temperature Range | 10 - 38 | °C | - |
Regulatory & Compliance
- Chemical Inventories
Storage & Handling
- Shelf Life
- 12 months