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Epocast_1843-A/B, TYPE 4 GRADES A and B Ultra-Low Density Syntactic Epoxy
Epocast® 1843-A/B, Type 4 is a low density syntactic foam designed for core filling, edge sealing, and fastener potting of honeycomb structures. Pourable (Grade A) and paste (Grade B) versions both meet aerospace industry specifications. Both types are capable of extended usage at 350°F.

SPECIFICATIONS
Brunswick BMS 204029 Rev B (Grade A Only) Lockheed STM 22-602 T4 C1 GA Rev F ROHR RMS 027 TY 5 CL 2 GR A Rev AH

TECHNICAL DATA
______________________________________1843-A/B _______1843-A/B Property _____________________________Grade A ________Grade B __Test Method Density gravity, g/cc ________________0.77-.88 _______0.77-.88 _ASTM-D-1622 Pot Life, 100 gm. @ 75°F , minutes ___30-50 __________25-50 ____ASTM-D-2471 Mixed Viscosity, cps @ 77°F __________45,000-90,000 __Non-Flow _ASTM-D-2196 Shelf life at 77°F, unopened, months _12 _____________12 _______-- MIX RATIO To 100 parts by weight of Epocast 1843-A, Grade A, add 13 parts by weight 1843-B. To 100 parts by weight of Epocast 1843-A, Grade B, add 15 parts by weight 1843-B. CURE SCHEDULE Grade A: 6 Hours @ R.T.+ ________Grade B: 3 Hours @ R.T.+ 2 Hours @ 200°F+ _________________________1/2 Hours @ 170°F+ 1 Hour @ 350°F ___________________________1 Hour @ 250°F TYPICAL CURED PROPERTIES _____________________________________________Grade A _Grade B _Test Method Compressive Strength, Ksi @ 75°F ____________6.00 ____6.00 ____ASTM-D-695 @ 350°F _____________________________________1.00 ____1.00 ____-- Adhesive Bond Strength @350°F, psi __________1,000 ___400 _____ASTM-D-1002


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