Vyncolit® E 3938 Datasheet,Epoxy,Vyncolit N.V.-SHANGHAI SUSHENG

Message
E 3938 is a fiberglass reinforced epoxy molding compound, with excellent dimensional stability, good strength, and excellent electrical insulation properties.

General Information
Filler / Reinforcement	Glass fiber reinforced material
Features	Good dimensional stability The degassing effect is low to no Low viscosity Solvent resistance Anti-salt water/fog Good electrical performance Good thermal shock resistance Good strength Good chemical resistance alkali resistance acid resistance Non-corrosive
Uses	Electrical components Military application Connector
Agency Ratings	FDA not rated USDA Unspecified Approval
Appearance	Black Blue
Forms	Particles
Processing Method	Resin transfer molding Compression molding Injection molding

Physical	Nominal Value	Unit	Test Method
Specific Gravity	1.85	g/cm³	ASTM D792
Molding Shrinkage - Flow (Compression Molded)	0.30 - 0.50	%	ASTM D955

Mechanical	Nominal Value	Unit	Test Method
Tensile Strength (Break, Compression Molded)	76.0	MPa	ASTM D638
Flexural Modulus (Compression Molded)	14500	MPa	ASTM D790
Flexural Strength (Break)	124	MPa	ASTM D790
Compressive Strength	210	MPa	ASTM D695

Impact	Nominal Value	Unit	Test Method
Notched Izod Impact (Compression Molded)	27	J/m	ASTM D256

Thermal	Nominal Value	Unit	Test Method
Deflection Temperature Under Load (1.8 MPa, Unannealed, Compression Molded)	200	°C	ASTM D648
CLTE - Flow	2.2E-5	cm/cm/°C	ASTM E831

Electrical	Nominal Value	Unit	Test Method
Dielectric Strength ¹	16	kV/mm	ASTM D149
Dielectric Constant (1 MHz)	4.50		ASTM D150
Dissipation Factor (1 MHz)	0.010		ASTM D150
Arc Resistance	180	sec	ASTM D495

Flammability	Nominal Value	Unit	Test Method
Oxygen Index	34	%	ASTM D2863

Injection	Nominal Value	Unit
Middle Temperature	60.0 - 82.2	°C
Nozzle Temperature	82.2 - 93.3	°C
Processing (Melt) Temp	93.3 - 116	°C
Mold Temperature	149 - 177	°C
Injection Pressure	34.5 - 68.9	MPa
Holding Pressure	13.8 - 34.5	MPa
Back Pressure	0.345	MPa

Injection instructions
Gauge: 0.3Powder Density, ASTM D1895: 0.75 g/cm³Water Absorption, ASTM D570, 48 hrs, 50°C: 0.2%DTUL @264psi - Unannealed, ASTM D648, Post Baked, Compression Molded: >282°CDielectric Strength, ASTM D149, 60 Hz, Method B, wet: 15.7 kV/mmDielectric Constant, ASTM D150, 1000000 Hz, wet: 4.5Dissipation Factor, ASTM D150, 1000000 Hz, wet: 0.01Compression and Transfer Molding Conditions: Preheat Temperature: 180 to 225 °F Mold Temperature: 325 to 370 °F Compression Mold Pressure: 1000 to 5000 psi Transfer Mold Pressure: 1500 to 8000 psi Cure Time, 0.125 in: 60 to 90 sec

Injection instructions

Gauge: 0.3Powder Density, ASTM D1895: 0.75 g/cm³Water Absorption, ASTM D570, 48 hrs, 50°C: 0.2%DTUL @264psi - Unannealed, ASTM D648, Post Baked, Compression Molded: >282°CDielectric Strength, ASTM D149, 60 Hz, Method B, wet: 15.7 kV/mmDielectric Constant, ASTM D150, 1000000 Hz, wet: 4.5Dissipation Factor, ASTM D150, 1000000 Hz, wet: 0.01Compression and Transfer Molding Conditions: Preheat Temperature: 180 to 225 °F Mold Temperature: 325 to 370 °F Compression Mold Pressure: 1000 to 5000 psi Transfer Mold Pressure: 1500 to 8000 psi Cure Time, 0.125 in: 60 to 90 sec

Note Message
1 .	Method B (step by step)

Category:	Epoxy , Epoxy; Epoxide
Manufacturer:	Vyncolit N.V.
Trademark:	Vyncolit®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	6GAfxR_Vyncolit-E-3938.pdf
PRICE:	Order Products email sales@su-jiao.com

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