Technical datasheet

ESTOPLAST EP4030HG38

Supplied byEster Industries- Last Updated on Jun 1, 2026

ESTOPLAST EP4030HG38 by Ester Industries is a flame retardant, polybutylene terephthalate (PBT) grade, contains mold release as an additive. It is reinforced with 30% glass fiber and exhibits thermal stability upto 300°C. It is designed for processing by injection molding. Used in interior parts like instrument cluster, E&E parts of automotive industry, switch parts, MCB, RCCB, relay, sensor, electrical enclosures and electronic industry. ESTOPLAST EP4030HG38 by Ester Industries complies with RoHS and UL-94 V0 flame ratings.
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ESTOPLAST EP4030HG38 properties

Flammability properties

PropertiesValue & unitTest conditionTest method
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Glow Wire Flammability Index (GWFI)0.0 Visible After LoginVisible After LoginVisible After Login

Mechanical properties

PropertiesValue & unitTest conditionTest method
Elongation at Break0.0 Visible After LoginVisible After LoginVisible After Login
Flexural Strength0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Izod0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Strength at Break0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
Specific Gravity0.0 Visible After LoginVisible After LoginVisible After Login
Water Absorption0.0 Visible After LoginVisible After LoginVisible After Login
Water Absorption0.0 Visible After LoginVisible After LoginVisible After Login

Thermal properties

PropertiesValue & unitTest conditionTest method
Heat Deflection Temperature (HDT), Unannealed0.0 Visible After LoginVisible After LoginVisible After Login
Heat Deflection Temperature (HDT), Unannealed0.0 Visible After LoginVisible After LoginVisible After Login

ESTOPLAST EP4030HG38 Processing Guidelines

Injection Molding Processing Guidelines

PropertiesValue & unitTest conditionTest method
Centre TemepratureVisible After LoginVisible After Login
Drying TemperatureVisible After LoginVisible After Login
Drying TimeVisible After LoginVisible After Login
Feed Zone TemepratureVisible After LoginVisible After Login
Melt TemperatureVisible After LoginVisible After Login
Moisture Content (Max)Visible After LoginVisible After Login
Mold TemperatureVisible After LoginVisible After Login
Nozzle TemepratureVisible After LoginVisible After Login

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