NC245-27 Polyurethane Foam
Spray Foam Roofing |
1. PRODUCT NAME
NC245-27
Polyurethane Foam
2. SUPPLIED BY
NATIONAL COATINGS CORPORATION |
1201 Calle Suerte Camarillo, CA 93012 |
| Phone: |
800-423-9557 |
| FAX: |
800-294-3866 |
www.nationalcoatings.com |
| info@nationalcoatings.com |
3. PRODUCT DESCRIPTION
NC245-27 is a two-component system of polymeric isocyanate “A-Component” and a water/Enovate 3000 (HCFC-245fa) blown “B-Component”. NC245-27 has been formulated as a nominal roof grade density of 2.7 lb/ft3 closed cell foam.
4. TECHNICAL DATA
See table below.
5. INSTALLATION
For application details see specific Installation Guide Specifications.
6. AVAILABILITY AND COST
NC245-27 may be purchased directly from National Coatings Corporation. For information call 800-423-9557.
7. WARRANTY
Various warranties are available for NC245-27 foam when used with specific ACRYSHIELD SPF Roofing Systems installed by approved applicators.
8. MAINTENANCE
Periodic maintenance of AcryShield SPF Roofing Systemscontaining NC245-27 foam ensures extended performance and reduces life-cycle costs.
9. TECHNICAL SERVICES
Additional information, product brochures, and installation guide specifications are available from National Coatings Corporation.
10. FILING SERVICES
Additional product information is available from National Coatings Corporation.
System Specifications
Viscosity |
cps @ 70° F |
Mix Ratio |
By Volume |
Recommended Ambient Application Temperatures °F |
A-Component |
175- 250 |
A-Component |
100 |
SS |
RS |
WS |
B-Component |
500-650 |
B-Component |
100 |
85+ |
60-90 |
50-75 |
Typical Physical Properties **
Properties |
Test Method |
Results |
Density |
ASTM D-1622 |
2.7lb/ft3 |
Compressive Strength
Parallel to Rise |
ASTM D-1621 |
45 PSI |
Tensile Strength |
ASTM D-1623 |
80 PSI |
Percent Closed Cells |
ASTM D-2856 |
>90% |
Insulation Values (aged) |
ASTM C-518 |
k Factor (BTU-in/ft2-°F-Hr) 0.156
R Value/Inch (ft2-°F-Hr/BTU-in) 6.4 |
Water Vapor Transmission |
ASTM E-96 |
3.0 Perm Inch |
Dimensional Stability |
ASTM D-2126 |
% Volume Change (7 days)
158°F 100% Relative Humidity <1
200°F <1
-20°F <1 |
Fire Listings
Roof Deck – Non Combustible
Roof Deck – Combustible
Spread of Flame |
UL 790 / ASTM E108*
UL 723 / ASTM E84*
|
Class A
Class B
40
|
*These flame-spread ratings are not intended to reflect hazards presented by this or any other material under actual fire conditions.
**Typical data as obtained by laboratory samples and value may vary under actual field conditions.
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