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Epocast_1621-A/B Core Reinforcing Compound
Epocast 1621-A/B is a high performance core reinforcing compound. This aluminum filled, high viscosity system exhibits outstanding compressive strength and resistance to deformation under load at temperatures up to 350°F. It can be extruded to fill honeycomb core for reinforcement in panels used in areas where high temperatures are encountered.

SPECIFICATIONS
BMS 5-28, Type 21 Rev AD ROHR RITMS 5-28 TY 21 Rev A

TECHNICAL DATA
Property _______________________1621-A____ 1621-B__ _1621-A/B __Test Method Color __________________________Gray ______Dk. Amber Gray ______Visual Density, g/cc __________________1.78 ______1.85 _____1.75 ______ASTM-D-792 Extrudability, 1/8" nozzle, cc/min -- _____-- _______125 _______-- Viscosity, centipoise @ 77°F ___Semi-Paste 450 ______Semi-Paste ASTM-D-2196 Gel time, 50 gms at 77°F, minutes -- ______-- _______60-90 _____ASTM-D-2471 Shelf life at 77°F, unopened, months 12 ___12 _______-- ________-- MIX RATIO To 100 parts by weight of Epocast 1621-A, add 8 parts by weight of Epocast 1621-B. Mix both components thoroughly for several minutes to assure complete blending. CURE SCHEDULE: 7 days at 75°F minimum or gel at room temperature plus 1½ hours at 260°F, or 1 hour at 350°F. TYPICAL CURED PROPERTIES (Not for specification purposes) Test __________________________________________________Result __Test Method Tensile lap shear, etched AL/AL, psi __________________1,900 ___ASTM-D-1002 Compressive strength Ksi at 77°F ______________________15.0 ____ASTM-D-695 _at 300°F _____________________________________________7.4 _____-- _at 350°F _____________________________________________2.0 _____-- Flammability, self-extinguishing, seconds _____________1-5 _____BSS-7230F4 Weight gain on immersion after 24 hours at 77°F, % _____________ASTM-D-543 _Mil-S-3136, Type III test fluid ______________________0.1 _____-- _Mil-M-5606, hydraulic fluid __________________________0.1 _____-- _Monsanto hydraulic fluid _____________________________05 ______-- _Distilled water ______________________________________0.1 _____--


	8750 Exchange Dr. Unit #5 Orlando, Florida 32809
	8750 Exchange Dr. Unit #5 Orlando, Florida 32809	407-426-9175