TDS - Axson North America, Inc

RIM855/RIM905
Reaction Injection Molding
Technical Data Sheet
Flexural Modulus 219,500 psi (1,500 mPa)
Tg 255°F (124°C)
DESCRIPTION
RIM material for parts having mechanical properties similar to thermoplastics such as polypropylene or
polyethylene; for use in prototype and small to medium scale series.
PROPERTIES
• Rapid demolding time • Designed for mechanical dispensing
• Sag free post cure • Excellent mid-range flexural modulus
• High glass transition temperature • Easy processing
Composition
TYPICAL PROPERTIES – SUPPLIED
PART A
RIM 905
Isocyanate
80
68
PART B
RIM 855 Polyol
MIXED
Mix ratio by weight
100
Mix ratio by volume
100
-
Aspect Liquid Liquid Liquid
Color Amber Black Black
Density at 77°F (25°C) (lbs./gal.)
10.35
8.75
9.45
Density at 77°F (25°C) (g/cc)
1.24
1.05
1.14
Viscosity at 77°F (25°C) (cPs) ASTM D2196 250 2,300 1,400
Pot life of 180g at 77°F (25°C) (seconds) ASTM D2471 - - 45 – 60
Demolding time (0.125 inch thickness,
3mm) from silicone mold at 158°F (70°C)
(minutes)
Demolding time (0.125 inch thickness,
3mm) from silicone mold at 77°F (25°C)
(minutes)
- - - 4*
- - - 6 – 7*
*Demolding time is dependent upon the mold temperature as well as the geometry of the part being fabricated.
See PROCESSING CONDITIONS for further information.
TYPICAL PROPERTIES – MECHANICAL
Cure conditions
7 days at 77°F 14 hours at
(25°C) 176°F (80°C)
Hardness at 77°F (25°C) ASTM D2583 Shore D 80 80
Flexural modulus psi (MPa) 225,000 (1,550) 219,500 (1,500)
ASTM D790
Flexural strength
psi (MPa) 8,500 (58) 7,500 (52)
Tensile modulus psi (MPa) 255,500 (1,760) 210,500 (1,450)
Tensile strength ASTM D638 psi (MPa) 5,200 (36) 5,500 (38)
Tensile elongation (at break)
% 13.7 6.4
Compressive modulus psi (MPa) 147,700 (1,020) 91,500 (631)
ASTM D695
Compressive strength at yield
psi (MPa) 5,400 (37) 5,700 (39)
TYPICAL PROPERTIES – THERMAL
Coefficient of thermal expansion (CTE) PPM/°F (°C) 64 (115) 65 (117)
Glass transition temperature (Tg) ASTM E1545 °F (°C) 136 (58) 124 (255)
Page 1/2- Rev. 03 August 10, 2009
AXSON NA USA AXSON GmbH AXSON IBERICA AXSON BRASIL AXSON SHANGHAI AXSON JAPAN
1611 Hults Drive Dietzenbach Barcelona Sao Paulo Shanghai OKAZAKI CITY
Eaton Rapids, MI Tél. (++49) 60 74 407110 Tel. (++34) 93 225 16 20 Tel. (++55) 11 5687 7331 Tel. (++86)-58 68 30 37 Tel.(++81) 564 26 2591
48827
Tel. (517) 663-8191 AXSON Italie AXSON UK Limited AXSON MEXICO AXSON France
Fax (517) 663-0523 Saronno Newmarket Mexico DF Cergy
Email : info@axson-na.com Tel. (++39) 02 96 70 23 36 Tel. (++44) 1638 660 062 Tel. (++52) 55 5264 49 22 Tél. (++33) 1 34 40 34 60
Email : axson@axson.fr

RIM855/RIM905
Reaction Injection Molding
Technical Data Sheet
Flexural Modulus 219,500 psi (1,500 mPa)
Tg 255°F (124°C)
PROCESSING CONDITIONS
Part B contains fillers which tend to settle during storage; remix to ensure a homogeneous product. Part B may be
remixed through the use of an agitator on a dispensing machine or by hand; after remixing be sure to protect the
material from moisture contamination through the use of a qualified dry blanket like Axson North America’s dry gas
blanket. Both parts (polyol and isocyanate) must be mixed at a temperature higher than 65°F (18.5°C) according to
the mix ratio above. Casting must be conducted in molds free of any trace of moisture. For further information
please consult AXSON’s technical staff or AXSON’s technical data sheet about ANCILLARY PRODUCTS.
Prior to unsupported post cure: Once demolded, ensure that the part has obtained a rigid state prior to
unsupported post cure. Example: 1/8 inch part from 158°F (70°C) silicone mold may be post cured without support
roughly 4 minutes after demolding, whereas a 1/8 inch part from a room temperature silicone mold can be post
cured without support roughly 6 minutes after demolding. The time required prior to unsupported post cure is
dependent upon the mold temperature as well as the geometry of the part being fabricated.
Optimum properties of the material are obtained after a 14 hour post cure at 176°F (80°C)
STORAGE CONDITIONS
Shelf life is 1 year (12) months when stored at 77°F (25°C) in original, unopened containers.
HANDLING PRECAUTIONS
Possibly irritating to the respiratory system and to skin. Always wear appropriate personal protection. Avoid
fumes, use only in a well ventilated area. If skin contact occurs, wash immediately with soap and water; if
irritation develops contact a physician. In the event of an eye splash, wash the contaminated eye with water for
at least 15 minutes and immediately seek medical help. If ingested, contact a physician.
Consult the MSDS for further information.
GUARANTEE
The information presented in this technical data sheet are based on results of tests conducted under precise conditions. It is the responsibility of
the user to determine the suitability of AXSON products, under their own conditions, before commencing with application. AXSON refuses any
guarantee concerning the compatibility of a product with any particular application. AXSON disclaims all responsibility for damage from any
incident which results from the use of these products. The guarantee conditions are regulated by our general sale conditions.
Page 2/2- Rev. 03 August 10, 2009
AXSON NA USA AXSON GmbH AXSON IBERICA AXSON BRASIL AXSON SHANGHAI AXSON JAPAN
1611 Hults Drive Dietzenbach Barcelona Sao Paulo Shanghai OKAZAKI CITY
Eaton Rapids, MI Tél. (++49) 60 74 407110 Tel. (++34) 93 225 16 20 Tel. (++55) 11 5687 7331 Tel. (++86)-58 68 30 37 Tel.(++81) 564 26 2591
48827
Tel. (517) 663-8191 AXSON Italie AXSON UK Limited AXSON MEXICO AXSON France
Fax (517) 663-0523 Saronno Newmarket Mexico DF Cergy
Email : info@axson-na.com Tel. (++39) 02 96 70 23 36 Tel. (++44) 1638 660 062 Tel. (++52) 55 5264 49 22 Tél. (++33) 1 34 40 34 60
Email : axson@axson.fr