+++Room-Temp-Curable
Northstar Polymers, LLC
3444 Dight Avenue So.
Minneapolis, MN 55406
Tel: 612.721.2911
Fax: 612.721.1009
E-Mail:
Northstar Polymers, LLC is a member of Polyurethane Manufacturers Association.
Copy right reserved by Northstar Polymers, LLC 2000 - 2007. Northstar Polymer prohibits duplication of the contents of this web site for the purposes of public display and/or using on another web site without a written authorization by Northstar Polymers, LLC.
Room Temperature Curable Casting Systems
Solid/Non-Foam Casting Resins
Because of the low-cost mold and simple molding process, using this type of material requires a relatively smaller initial investment to start a production. The materials cure at room temperature; thus, very often, the initial tooling and equipment cost can be very low. Some of the existing applications are:
Concrete molds and patterns
Gaskets for low pressure tanks and containments
Vibration dampening, noise reduction, bumpers, and padding products
Encapsulation material for electronic components
Prototyping and short run productions
|
Product Code |
Hardness (Shore Durometer) |
Tensile Strength (psi) |
Ultimate Elongation (%) |
Die-C Cut/Tear Resistance (pli) |
Sprit Tear Resistance (pli) |
Mixing Ratio By Volume (Weight) |
|
30A |
260 |
550 |
40 |
20 |
1: 1.053 (1:1) |
|
|
47A |
450 |
520 |
90 |
14 |
1:3 (1:2.618) |
|
|
50 A |
450 |
400 |
92 |
14 |
1:3.200 (1:2.789) |
|
|
60A |
525 |
260 |
113 |
14 |
1:2.730 (1:2.383)
|
|
|
65A |
480 |
180 |
92 |
15 |
1:2.633 (1:2.298) |
|
|
80 A |
1100 |
180 |
140 |
25 |
2:3 (1:1.312) |
|
|
90A |
1800 |
350 |
250 |
90 |
1:1 (1: 0.877) |
|
|
60 - 70 D |
1250 |
34 |
388 |
ND |
2:3 (1: 1.250) |
|
|
65 - 70 D |
3600 |
60 |
880 |
ND |
4: 3 (1: 0.675) |
Rigid Urethane (for prototyping of plastic product etc.)
|
Product Code |
Hardness (Shore Durometer) |
Tensile Strength (psi) |
Ultimate Elongation (%) |
Flexural Strength (psi) |
Flexural Modulus (psi) |
Mixing Ratio By Volume (Weight) |
|
80D |
8000 |
5 |
10,000 |
300,000 |
1:1 (1: 0.878) |
Specialty Room-temp-cure Urethanes
|
Product Code Special Attributes |
Hardness |
Tensile Strength (psi) |
Ultimate Elongation (%) |
Die-C Cut/Tear Resistance (pli) |
Sprit Tear Resistance (pli) |
Mixing Ratio By Volume (Weight) |
|
Slow Cure Low-Temp Low-Shrinkage |
80A |
1818 |
813% |
427 |
152 |
1:0.097 (1: 0.093) |
Softer Range Room Temperature Curable Systems
The following casting resin systems are specially formulated to service low-A Durometer hardness range. The material retains flexibility even at a cold operation temperature, and it is stable for a long period of time in an aqueous environment. The recommended applications include gaskets used in low temperature at low pressure, mold-making for concrete and low-temperature-curing resins. The components for these formulas are less moisture sensitive than the general purpose formulas for ease of use. Pot-lives for these formulations are relatively long to allow wide working time. The mixing ratios are made to be easy one-to-one or one-to-two ratio for ease of handling.
|
Product Code |
Hardness (Shore Durometer) |
Tensile Strength (psi) |
Ultimate Elongation (%) |
Die-C Cut/Tear Resistance (pli) |
Sprit Tear Resistance (pli) |
Mixing Ratio By Volume (Weight) |
|
25A |
311 |
291 |
61 |
20 |
1: 1 (1: 0.966) |
|
|
30A |
487 |
435 % |
148 |
52 |
1: 2 (1:1.869) |
Please also see Useful Information index for processing instructions and more.
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.