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IDES

EVAL® SP521B

Ethylene Vinyl Alcohol

Supplied by Eval Company of America

The technical datasheet with complete property values for EVAL® SP521B is available to members of the Prospector Plastics Database.
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General

Material Status

Commercial: Active

Availability

Europe

North America

Additive

Lubricant

Features

Copolymer

Lubricated

Forms

Pellets

Processing Method

Extrusion

Physical	Nominal Value	Unit	Test Method
Density		g/cm³	ISO 1183
Melt Mass-Flow Rate (MFR) (210°C/2.16 kg)		g/10 min	ISO 1133
Thermal	Nominal Value	Unit	Test Method
Melting Temperature (DSC)		°F	ISO 3146
Additional Information
Limit of Orientability, Simultaneous, Kuraray Method: 4 x 4 Limit of Orientability, Sequential, Kuraray Method: 2 x 2 O2 Transmission Rate, ISO 14663-2, 65%RH, 20°C: 0.015 cm²-mil/100in²/day/atm O2 Transmission Rate, ISO 14663-2, 85%RH, 20°C: 0.061 cm²-mil/100in²/day/atm
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: EVAL® SP521B, EVAL SP521B, EVAL® , EVAL, EVALSP521B, SP 521 B, SP521B, SP521, 521B, Ethylene Vinyl Alcohol, EVOH, Vinyl Alcohol, VOH, EthyleneVinylAlcohol, VinylAlcohol, 521SP

Extrusion Notes
The recommended design for metering screws: L/D Ratio: 24 to 30 Compression Ratio: 2.6 to 3.6 Zone Distribution: Feed: 8 to 10 D Compression: 8 to 10 D Metering: 8 to 10 D The recommended design for barrier screws: L/D Ratio: 24 to 30 Compression Ratio: 2.5 to 3 Zone Distribution: Feed: 6 to 7.5 D (25% of screw length) Transition and Melting: 12 to 15 D (50% of screw length) Metering: 6 to 7.5 D (25% of screw length)

Notes

¹Typical properties: these are not to be construed as specifications.