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HHW-191

Technical Datasheet | Supplied by Westlake

HHW-191 by Westlake Chemicals is a specialty purpose rigid polyvinyl chloride (PVC) grade. Offers good thermal and dimensional stability. Offers high-heat distortion, high-impact strength, colorability and weatherability. It is suitable for processing by profile extrusion. This non-phthalate compound is commonly used in exterior applications. HHW-191 meets UL 94 V-1 flame rating.

HHW-191 Properties

Mechanical Properties

Value & Unit

Test Condition

Test Method

Hardness, Rockwell R

110

(Delayed)

ASTM D2240

Tensile Modulus

2413 MPa

ASTM D638

Flexural Modulus

2413 MPa

ASTM D790

Extrusion Properties

Value & Unit

Test Condition

Test Method

Melt Temperature

335 - 380 °F

Barrel Zone 1 Temperature

330 - 340 °F

Barrel Zone 2 Temperature

330 - 350 °F

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HHW-191

HHW-191 Properties

Mechanical Properties

HHW-191 Processing Guidelines

Extrusion Properties