+++MPN-R07A
Northstar Polymers, LLC
3444 Dight Avenue So.
Minneapolis, MN 55406
Tel: 612.721.2911
Fax: 612.721.1009
E-Mail: info@northstarpolymers.com
Northstar Polymers, LLC is a member of Polyurethane Manufacturers Association.
Copy right reserved by Northstar Polymers, LLC 2000 - 2007.
MPN-R07A
Rigid Closed-Cell Foam (Cast-In-Place Rigid Foam)
7-pounds-per-cubic-foot density
This rigid polyurethane foam system is one of a family of polymer systems developed by Northstar Polymers for specific applications. Urethane foams molded with this system exhibit good insulation properties and some load-bearing property. Easy-to-use 1 to 1 ratio allows a user to mix the components with common tools without an expensive casting/spray machine. This medium density rigid foam can be used as a compound to protect sensitive equipment without adding too much weight, and as an insulation for a variety of parts and structures. This combination of features makes MPN-R07A ideal for cat-in-place insulation foam material and many other custom applications.
· For foams with stronger mechanical properties, we recommend higher density rigid foams or semi-rigid foams. A variety of foam densities is available with our custom formulations between 3 to 20 pound per cubic foot.
Typical Physical Properties
|
Physical Property |
Typical Value |
|
Free Rise Density: |
6.6 lbs./ ft³. |
|
Packing Density: |
7 lbs./ ft³. |
|
Packing Factor: |
1.10 |
|
Cell Size (99% are less than) |
0.5 mm (>95% Closed cells): |
| Natural Color of Cured Foam |
Dark Yellow to Amber |
Typical Processing Conditions:
Mixing Ratio
Part-A Part-B Volume Ratio 1.000 1.000 Weight Ratio 1.000 0.865
Processing Temperature:Part-A Ambient
Part-B Ambient
Mold/Substrate Ambient (Best to be 100 - 110 ºF (38 -44 ºC))
* The ideal temperature for the mold and substrate is 100 - 110 ºF. However, if you are casting on substrate that are less heat-absorbing, such as plastic, sheet rock, or wood, molding surface can be at the ambient temperature. For all metal molds, the temperature should be between 100 to 110 ºF.
Cure Pattern:
Mixing Time 30 Seconds Pot Life (pour within) 1 Minute Demolding time 40 minutes Complete Cure Cycle 24 hours at room temperature
Back to Rigid Closed-Cell Foam Index Page
Northstar Polymers, LLC
3444 Dight Avenue South
Minneapolis, MN 55406
Tel: 612.721.2911
Fax: 612.721.1009
E-Mail: info@northstarpolymers.com
Notice: All of the statements, recommendations, suggestions, and data concerning the subject material are based on our laboratory results, and although we believe the same to be reliable, we expressly do not represent, warrant, or guarantee the accuracy, completeness, or reliability of same, or the material or the results to be obtained from the use thereof, neither do we warrant that any such use, either alone or in combination with other materials, shall be free of the rightful claim of any third party by way of INFRINGEMENT or the like, and NORTHSTAR POLYMERS DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, OF MERCHANTABILITY and FITNESS FOR A PARTICULAR PURPOSE.