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. Our technical sales representatives will
assist in developing procedures to fit individual requirements, but all advice is accepted at your risk and should be checked for
suitability to your particular processes. These test data and properties are based on results obtained for a specific material under the
specified test conditions. They are not to be used as specifications and are not warranted as performance attributes for any product or
system. Specifications and properties of standard production material may vary slightly from those in this report. Interplastic
Corporation makes no warranties regarding any material and/or samples described in this report unless that representation is provided
to your company in writing by a Technical Director of Interplastic Corporation or one of his or her managers.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 9/16
COR75-AA-861HC is part of a series of specially designed isophthalic corrosion resistant thermoset polymer resins that
meets the sophisticated demands of modern technology in various corrosion applications. See CoREZYN Isophthalic
Corrosion Resistant Resins publication 8/08 B-056b for corrosion recommendations.
FEATURES BENEFITS
Moderate Hardness Development Good cycle times with minimal exotherm
Corrosion Resistant Works in a variety of environments
Promoted Resin System Ready to use in customer applications
Less Than 46% HAP Styrene Content Meets many requirements for low HAP content
Good Fiberglass Wet-Out Works well in thick cross sections
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model RV, #2 Spindle @ 20 rpm, 77 F (25 C), cPs 450-650
Thixotropic Index 2.5-3.2
100 grams resin @ 77 F (25 C), initiated with 1.25 grams DDM-9*
Gel Time, min:sec 6:00-12:00
Gel to Peak Exotherm Time, min:sec 4:00-12:00
Peak Exotherm 340-400 F (171-193 C)
Non-Volatile Content, % 52.0-56.0
VOC Content, grams per liter 470-530
Specific Gravity 1.07-1.10
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 16,500 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 26,400 psi 182 MPa — psi — MPa
* 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-861HC
Isophthalic Corrosion Resin
Technical Data Sheet