All specifications and properties specified above are approximate. Specifications and properties of material delivered may vary slightly
from those given above. Interplastic Corporation makes no representations of fact regarding the material except those specified above.
No person has any authority to bind Interplastic Corporation to any representation except those specified above. Final determination of
the suitability of the material for the use contemplated is the sole responsibility of the Buyer. The Thermoset Resins Division’s technical
sales representatives will assist in developing procedures to fit individual requirements.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised:8/11
COR75-AA-861HR is part of a series of specially designed corrosion resistant resins that meet the sophisticated demands
of modern technology in various corrosion applications.
See CoREZYN Isophthalic Resins brochure publication 8/05 A-002a for corrosion recommendations.
FEATURES BENEFITS
Moderate Hardness Development Good cycle times and dimensional stability
Corrosion Resistant Works in a wide variety of environments
Good Fiberglass Wet-Out High physical properties in application
Excellent Physical Strengths Works well in thick cross sections
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model RVF #2 Spindle @ 20 rpm, 77 F (25 C), cps 450-650
Thixotropic Index 2.0-3.0
50 grams resin @ 77 F (25 C), initiated with 0.625 grams DDM-9 *
Gel Time, min:sec 17:00-21:00
Gel to Peak Exotherm Time, min:sec 7:00-16:00
Peak Exotherm 340-380 F (171-193 C)
Non-Volatile Content, % 52.0-55.0
Specific Gravity 1.05-1.10
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting 1/8 inch (3.2 mm) Laminate
Construction Not Applicable 4 Plies 1.5 oz/ft
2
, 33% Glass Mat
Flexural Strength, ASTM D790 18 ,500 psi 128 MPa 25,000 psi 172 MPa
Flexural Modulus, ASTM D790 5.4 x 10
5
psi 3,724 MPa 11.5 x 10
5
psi 7,931 MPa
Tensile Strength, ASTM D638 9,500 psi 66 MPa 16,000 psi 110 MPa
Tensile Modulus, ASTM D638 5.5 x 10
5
psi 3,793 MPa 11.7 x 10
5
psi 8,069 MPa
Tensile Elongation, ASTM D638 1.7 % 1.7 % 2.0 % 2.0 %
Barcol Hardness, 934-1 gauge, ASTM D2583 45 45 45 45
Heat Distortion Temperature, ASTM D648 220 F 104 C — F — C
Compressive Strength, ASTM D695 26,400 psi 182 MPa — psi — MPa
* The gel time and reactivity will vary due to the type and concentration of Free Radical Initiator (catalyst), shop temperature, humidity, and type of fillers used. In order to
meet your individual needs consult our technical sales representative for assistance.
COR75-AA-861HR
Corrosion Isophthalic Resin
Technical Data Sheet