DESCRIPTION
Multifunctional epoxy and cycloaliphatic-amine blend hardener for high performance composite parts. One hour pot life, with fast cure development at typical ambient temperatures. Thixotropic resin will not drain from laminate.
Excellent combination that provides good thermal resistance, excellent fatigue and interlaminar shear strength with rapid wetting of E-glass fiber reinforcements. Rhino Linings 1401-21T Epoxy Resin is formulated for highly increased E-glass fiber compatibility. Low toxicity, low odor system. No VOCs, 100% solids.
SUGGESTED USES
| Viscosity 1401-21 Resin, 77°F: | 2,500 – 3,000 cps (thixotropic) |
| Viscosity of 4101-23 Hardener at 77°F: | 150 cps |
| Mix Ratio, Resin to Hardener: | 100:30 by weight |
| Mixed Viscosity, 77°F: | 700 cps |
| Gel Time, 130 grams, 77°F: | 60-64 mins (Venus Gel Timer) |
| Pot Life, 200 grams, 77°F: | 50-60 mins (Time to reach 45°C in an unstirred mass) |
| Weight Per Gallon, 1401-21T Resin: | 9.5 lbs |
| Weight Per Gallon, 4101-23 Hardener: | 8.1 lbs |
Condition epoxy resin and hardener to 20ºC – 30ºC (68ºF – 85ºF) to ensure proper mixed viscosity. Mix resin and hardener at the ratio of 100 parts 1401-21T resin to 30 parts 4101-23 hardener by weight. Introduce mixed material onto reinforcement(s), and roll to release air from laminate. In the case of hand lay-up, continue rolling until there are no “white” areas indicating incomplete fiberglass wet-out.
A post cure of 12 hours at 130ºF will bring the composite to full cure. A cure schedule of 12 hours at 135°F or 7 days at ambient will accomplish maximum HDT. Optimum cure time(s) versus temperature(s) will depend on parameters such as part thickness or size.
Rhino Linings Epoxy 1401-21T Epoxy Resin is formulated to improve the intimate bond between the epoxy resin and E-glass fiber reinforcements. This formulation technique results in increased physical properties as follows:
| • Fiber Pull-Out Strength | • Tensile Strength and Modulus |
| • Flexural Strength and Modulus | • Compressive Strength |
| • Impact Resistance | • Inter-Laminar Shear Strength |
Of equal, if not greater significance is the retention of the above properties after exposure to heat, cycle fatigue, water, expected adverse environmental reagents such as salt spray, acid rain, etc. The formulation of Rhino Linings Epoxy 1401-21T Epoxy Resin results in minimal degradation of the cured composite’s physical properties as compared to epoxy resin systems not containing the proprietary formulation constituents of Rhino Linings Epoxy 1401-21T Epoxy Resin. The benefit to the composite fabricator is increased product life and longevity.
A-260 E-glass (epoxy compatible rovings) with Rhino Linings 1401-21T Epoxy Resin and 4101-23 Epoxy Hardener (65:35 glass to resin ratio). Cure schedule – 2 hours at 77ºF (wet out) / 12 hours at 135°F (basic cure) / 7 days at ambient temperature.
| Property | Result | Test Method |
| Tensile Strength: | 83,000 psi | ASTM D-638 |
| Tensile Modulus: | 5,250,000 psi | ASTM D-638 |
| Flexural Strength: | 86,000 | ASTM D-790 |
| Flexural Modulus: | 2,490,000 psi | ASTM D-790 |
| Izod Impact: | 44.5 ft/lb/in | ASTM D-256-A |
| Water Absorption: | 0.09% | ASTM D-570 |
| Cured Specific Gravity | 1.92 | ASTM D-790 |
| Barcol Hardness: | 64 | Rhino |
Rhino Linings 1401-21T Epoxy Resin, 100 parts, Rhino Linings 4101-23 Epoxy Hardener, 30 parts. Cure schedule – 2 hours at 77ºF (wet out) / 12 hours at 135°F (basic cure) / 7 days at ambient temp.
| Property | Result | Test Method |
| Shore D Hardness: | 88D | Rhino |
| Heat Distortion Temperature | >175°F | Rhino |
| Elongation at Tensile Strength | 4.5 – 5.0% | Rhino |
| Ultimate Elongation: | 7.5 – 8.5% | Rhino |
| Ultimate Compressive Strength | 14,500 psi | Rhino |
5 Gallon Pails, 55 Gallon Drums, Intermediate Bulk Containers (IBC’s), Mfg by Rhino Linings Epoxy Division, San Diego, CA..
