Complete list of injection molding plastic materials

author: Universe plastic

2023-12-16

During the injection molding manufacturing process, proper material selection is a key factor in ensuring product performance and quality. This guide will provide you with comprehensive information on injection molding material selection to help you make informed decisions in production.

What are injection molding materials

Injection molding materials are a type of material used in the injection molding process, mainly including thermoplastics and thermoset plastics. These materials can be melted when heated, injected into a mold, and then cooled or solidified into a finished product with a specific shape.

Injection molding materials are usually in bagged, dry granular form. The price and characteristics of each material are different, and the plastic products they are used to make are also different.

Sometimes in order to meet the demand for plastic products, more than one injection molding material is involved in melt production.

In addition, for some plastics with low requirements, some recycled materials can also be used to participate in production and manufacturing, which not only protects the environment, but also saves manufacturing costs.

Injection molding plastic material warehouse

Injection molding material types and parameters

Plastic injection molding material types

	density	melting point	hardness	Transparency	Tensile Strength	Heat distortion temperature	chemical resistance	electrical insulation
HDPE (high density polyethylene)	0.941 - 0.965 g/cm³	120 - 130°C	D 60 - 70	opaque	25 - 35 MPa	70 - 80°C	very good	very good
LDPE (low density polyethylene)	0.910 - 0.940 g/cm³	105 - 115°C	D 40 - 50	translucent to opaque	8 - 25 MPa	30 - 50°C	good	very good
LLDPE (linear low density polyethylene)	0.915 - 0.925 g/cm³	120 - 125°C	D 50 - 60	translucent to opaque	10 - 30 MPa	40 - 60°C	good	very good
PP (Polypropylene)	0.900 - 0.910 g/cm³	160 - 170°C	D 70 - 80	translucent to opaque	30 - 40 MPa	100 - 120°C	very good	very good
PS (polystyrene)	1.04 - 1.07 g/cm³	210 - 250°C	D 85 - 95	transparent	35 - 55 MPa	70 - 100°C	weaker	very good
PVC (polyvinyl chloride)	1.30 - 1.45 g/cm³	100 - 260°C	D 80 - 85	translucent to opaque	40 - 60 MPa	60 - 85°C	very good	very good
PA (polyamide, nylon)	1.13 - 1.15 g/cm³	190 - 280°C	D 80 - 90	opaque	60 - 80 MPa	100 - 150°C	good	very good
POM (polyoxymethylene)	1.41 - 1.43 g/cm³	175 - 185°C	D 85 - 90	opaque	60 - 70 MPa	110 - 130°C	very good	very good
PMMA (polymethylmethacrylate)	1.17 - 1.20 g/cm³	160 - 165°C	D 85 - 90	transparent	60 - 80 MPa	85 - 105°C	weaker	very good
AS (acrylonitrile-styrene copolymer)	1.04 - 1.08 g/cm³	110 - 120°C	D 80 - 85	translucent to opaque	45 - 70 MPa	70 - 100°C	good	very good
ABS (acrylonitrile-butadiene-styrene copolymer)	1.04 - 1.06 g/cm³	210 - 240°C	D 70 - 80	opaque	40 - 60 MPa	80 - 105°C	good	very good

Injection Molding Considerations

1. Consider product requirements

When selecting materials, the functional requirements, usage environment, temperature range and chemical effects of the product must be considered, and materials that meet durability and performance must be matched.

2. Consider manufacturing costs

Material cost is an important consideration, and understanding the availability and prices of different materials ensures economical and stable manufacturing while maintaining quality.

3. Meet environmental protection needs

When selecting injection molding materials, make sure the material you choose meets industry regulations and quality certification standards. With the increased use of recycled materials and the emergence of new technologies. The demand for environmental protection is getting stronger and stronger, and we need to keep pace with the times.

Injection molding services

Choosing the right injection molding material is one of the core decisions to ensure product quality and production efficiency.

With a deep understanding of the properties and applications of injection molding materials, you will be able to make informed choices to meet your product needs and increase production efficiency.

At the same time, in the injection molding project. Dongguan Universe Plastic Co., Ltd. will provide the most cost-effective injection molding material options that comply with the latest industry standards, and we look forward to your consultation!

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