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: 3/20
COR75-AQ-470 is a promoted, thixotropic, low HAP, corrosion resistant isophthalic polyester resin. It is made from the
same polyester resin used to manufacture SIL45BA-2541. It is designed to be filled with 30% calcium sulfate.
COR75-AQ-470 is manufactured from ingredients listed as acceptable in FDA Code of Federal Regulation Title 21, CFR
177.2420.
FEATURES BENEFITS
Fast Hardness Development Good cycle times and dimensional stability
Corrosion Resistance Works in a variety of environments
Fast Fiberglass Wet-Out and Adhesion Easy roll-out and high laminate physical properties
Excellent Physical Strengths and High Heat Distortion
Resistance
Composites resist fatigue
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model LV #3 Spindle @ 60 rpm, 77 F (25 C), cPs 375-475
Thixotropic Index 2.6-3.7
100 grams resin @ 77 F (25 C), initiated with 2.0% MEKP-925 by volume *
Gel Time, min:sec 20:00-24:00
Gel to Peak Exotherm Time, min:sec 6:30-13:30
Peak Exotherm 380-440 F (193-226 C)
Non-Volatile Content, % 47.0-51.0
Maximum Hazardous Air Pollutant (Styrene) Content, % 45
Specific Gravity 1.03-1.09
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
, 25% Glass Mat
Flexural Strength, ASTM D790 17,600 psi 121 MPa 19,000 psi 131 MPa
Flexural Modulus, ASTM D790 5.2 x 10
5
psi 3,593 MPa 9.1 x 10
5
psi 6,276 MPa
Tensile Strength, ASTM D638 8,630 psi 60 MPa 12,800 psi 88 MPa
Tensile Modulus, ASTM D638 5.3 x 10
5
psi 3,655 MPa 11.5 x 10
5
psi 7,931 MPa
Tensile Elongation, ASTM D638 1.9 % 1.9 % 2.2 % 2.2 %
Barcol Hardness, 934-1 gauge, ASTM D2583 42-44 42-44 42-44 42-44
Heat Distortion Temperature, ASTM D648 243 F 117 C — F — C
* 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-AQ-470
Isophthalic Corrosion Resin
Technical Data Sheet