Polynt DISTITRON® 278 Unsaturated Polyester Resin

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Polynt DISTITRON® 278 Unsaturated Polyester Resin
Categories:	Polymer; Thermoset; Polyester, TS
Material Notes:	Unsaturated polyester resin in styrene, Ortophthalic-Neopentylic Appearance: Yellow - Transparent Main resin characteristics: High reactivity, Clear, unaccelerated Main applications: BMC and SMC manufacture, good superficial appearance Molding information: Hot press molding Curing cycle: 16h at 70°C + 2h at 100°C + 1h at 100°C Information provided by Polynt Composites.
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Physical Properties	Original Value	Comments

Density	1.11 g/cc
Solids Content	63 - 65 %	MT-CU001C
Brookfield Viscosity	2000 - 2200 cP	sp 3 rpm 20; MT-CUT23V

Chemical Properties	Original Value	Comments
Acid Value	13 - 18	[mgKOH/g]; MT-CU001I

Mechanical Properties	Original Value	Comments
Hardness, Barcol	47	ASTM D 2583
Tensile Strength	45.0 MPa	ISO 527
Elongation at Break	1.6 %	ISO 527
Tensile Modulus	3400 MPa	ISO 527
Flexural Strength	100 MPa	ISO 178
Flexural Modulus	3300 MPa	ISO 178

Thermal Properties	Original Value	Comments
Deflection Temperature at 1.8 MPa (264 psi)	120 °C	ISO 75 -2A
Glass Transition Temp, Tg	125 °C	ASTM E 1545

Processing Properties	Original Value	Comments
Cure Time	100 - 125 sec @Temperature 130 °C	Reactivity at 130°C + 1% TBPEH; RS.03.G
Shelf Life	6.00 Month	in the dark; MT-CU002S

Descriptive Properties
Peak Exotherm	200 - 230°C	RS.08.G; Reactivity at 130°C + 1% TBPEH

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PPOLYN9384 / 231979

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