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Plastics & Elastomers
The material selection platform
Plastics & Elastomers
by SpecialChem
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Laser+® W (L40B)

Technical Datasheet | Supplied by DAK Americas
Laser+® W (L40B) by DAK Americas is a recyclable, lightweight polyethylene terephthalate (PET) copolymer grade. Exhibits optimal barrier & mechanical properties and high environmental stress cracking resistance (ESCR). Offers ultimate food protection, good productivity, high heat absorption & processing control, even at higher blowing speeds and low intrinsic viscosity. It is a hygroscopic grade, insoluble in water and improves acetaldehyde (AA) performance. Is suitable for processing by injection stretch blow molding using conventional single or two-stage processing technology. Laser+® W (L40B) is recommended for water bottles, containers, food packaging and film applications. Certified by UL Standard and complies with FDA Food Contact Notification 000635 and HPFB file KS 05103107.
Product Type
Polyester > PET
Physical Form
Clear, Grayish white

Laser+® W (L40B) Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Mositure Content
< 0.25 %
(As packaged)
< 0.10 %
(24 mesh, as packaged)
Pellet Size
48 - 58 chips/g

Laser+® W (L40B) Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Drying Temperature
300 - 340 °F
Dehumidified Air Temperature
340 - 370 °F
Dehumidified Air Dew Point
-34 - -40 °F
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