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Injection Molding and Moldmaking
with Surgical Precision

Injection Molding and Moldmaking
with Surgical Precision

micro details
with
Micro components
Surgical Precision
with
Components and sub-assemblies
for
Micro Tooling
Micro Molding
Design Expertise
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Unparalleled Moldmaking
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Melt Flow Testing


 

 Matrix has the ability to perform melt flow testing in our inspection lab. We use this to confirm that an incoming resin's melt properties are within the range specified for that grade.

Melt flow index (MFI) is a measure of how easily the melt of a thermoplastic polymer flows. More specifically, it is the mass of polymer (in grams) that flows in 60 seconds through a tube of specified diameter and length by application of prescribed pressures at prescribed temperatures. The specific method for this testing is described in ASTM standard D1238 and ISO standard 1133. Melt flow rate is inversely proportional to viscosity of the melt under the conditions of the test. Ratios between two melt flow rate values for one material at different pressures are often used as a measure of the broadness of the polymer's molecular weight distribution. Melt flow rate is very commonly used for polyolefins, with polyethylene being measured at 190°C and polypropylene at 230°C.

Something to consider in selecting the proper material grade is to choose one with a melt flow index high enough to easily form the part, yet low enough to provide sufficient mechanical strength for the part's intended use.

QUALITY MANAGEMENT SYSTEMS

Matrix has established, documented and implemented a formal Quality Management System that is certified to both ISO 9001:2008 and ISO 13485:2012 standards for medical device components.

ISO 9001 URS UKASISO 13485 URS UKAS

ISO 9001 & 13485 Dual Certificate (PDF Download)

WHY CHOOSE MATRIX PLASTIC PRODUCTS

Sourcing a custom product isn’t a decision to take lightly. It’s an investment — and you’ll want to make sure that you’re getting the best return for your money. When you choose Matrix to handle your project, you benefit from...

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Matrix Equipment List (PDF Download)
Materials Capabilities List (PDF Download)

 

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