by SpecialChem

LG PMMA IG840

Technical Datasheet | Supplied by LG Chem

LG PMMA IG840 by LG Chem is a general-purpose polymethyl methacrylate acrylic (PMMA) grade. Exhibits superior transparency, tinting ability, excellent weather- and scratch resistance. Used for automobile, optical products, electrical and electronic applications. LG PMMA IG840 is suitable for processing by extrusion and injection molding. Complies with RoHS and UL file no. E194507.

LG PMMA IG840 Properties

Thermal Properties

Value & Unit

Test Condition

Test Method

Heat Deflection Temperature (HDT), Unannealed

89.0 °C

(At 1.8 MPa)

ASTM D648

Vicat Softening Temperature

109 °C

(Loading 1 (10N))

ASTM D1525

CTE, Linear, Parallel to Flow

6.0x10^-5 cm/cm-°C

ASTM D696

Injection Molding Properties

Value & Unit

Test Condition

Test Method

Drying Temperature

70 - 80 °C

Drying Time

4.0 - 6.0 hr

Rear Temperature

210 - 250 °C

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LG PMMA IG840

LG PMMA IG840 Properties

Thermal Properties

LG PMMA IG840 Processing Guidelines

Injection Molding Properties