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Plastics & Elastomers
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Plastics & Elastomers
by SpecialChem
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lupital™ MAL20

lupital™ MAL20 by Mitsubishi Engineering-Plastics is a low friction polyacetal (POM) grade. It shows excellent sliding characteristics. It contributes to low-noise design with low sliding resistance. It is processed by injection molding at medium injection speed. It is suitable for applications including drug inhaler for COPD and asthma, injection devices such as insulin pens, and parts for medical devices. lupital™ MAL20 is compliant with ISO10993-5 & 10, USP 87, USP 88 Class IV and FDA Drug Master File.
Product Type
POM (Polyacetal, Polyoxymethylene)
Product Launch Date
Jun 1, 2021
Product Status

lupital™ MAL20 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
1.39 g/cm3
( )
ISO 1183
Water Absorption
1.39 %
(At 23°C, 60% RH)
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)
8.6 g/10 min
(At 190°C, 2.16 kg)
ISO 1133

lupital™ MAL20 Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Pre-drying Temperature
80 °C
Pre-drying Time
3 - 4 hr
Rear Cylinder Temperature
170 - 180 °C
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