Polymethyl Methacrylate (PMMA / Acrylic) and Polyethylene Terephthalate (PET) are the two most quoted options for cosmetic and personal care plastic packaging in water and wastewater treatment projects. Both are widely available, but they behave very differently once they are in service.
This guide is written for engineers, purchasers and project managers who need a practical answer, not a resin data sheet.
This category covers a family of products rather than a single item. In practice a buyer defines cosmetic and personal care plastic packaging by three things: the base resin, the format or dimension, and the performance or certification level it has to meet. Typical options in this category include PCR content options; thick wall acrylic jars; airless pump systems. Materials most often specified are Acrylonitrile Butadiene Styrene, Polystyrene, Polypropylene, Polymethyl Methacrylate, and the choice between them changes stiffness, temperature resistance, chemical behaviour and price.
In the water and wastewater treatment sector the decision is usually driven by drinking water approval and biofilm support, with corrosion free service as a secondary requirement. Typical end uses include lamella plates, pipework, filter housings.
Typical values for a general purpose grade are listed below; filled, stabilised and speciality compounds will differ.
| Material | Density | Tensile strength | Service temperature |
|---|---|---|---|
| Polypropylene | 0.90-0.91 g/cm³ | 25-40 MPa | -10°C to 100°C |
| Acrylonitrile Butadiene Styrene | 1.04-1.06 g/cm³ | 30-50 MPa | -20°C to 80°C |
| Polymethyl Methacrylate | 1.18 g/cm³ | 50-75 MPa | -40°C to 80°C |
Polymethyl Methacrylate is frequently the default selection here: Cast acrylic machines cleanly and keeps its clarity outdoors for a decade or more.
Polymethyl Methacrylate grades offer up to 92% light transmission, while Polyethylene Terephthalate brings excellent barrier to CO2 and moisture. For water and wastewater treatment service the difference shows up in UV stability and in the long term behaviour under load.
Both materials can be validated quickly with a small sample run, which is the cheapest way to settle the argument for your own application.
Beyond the base resin, most suppliers offer UV stabilised, food contact, flame retardant, anti-static and recycled content versions of the same product. Ask which additive package is included, because it is often the difference between a part that lasts three years and one that lasts ten.
The route below is the one most factories use for this type of part.
Secondary operations such as printing, welding, machining and assembly are often cheaper to do in the same factory, and they reduce the risk of mismatch between components.
These are the criteria that actually predict whether the part will perform in service.
Send this list to your supplier with the drawing and you will receive comparable quotations from every factory you contact.
We can provide ISO 9001 quality system documentation, material certificates, RoHS and REACH statements, and where applicable food contact, flame retardancy or drinking water approvals. Tell us your target market and we will match the document set.
Yes. Standard samples are normally free of charge and shipped within three working days; custom samples are charged at cost and credited against the first production order.
A new tool typically takes 25 to 45 days depending on cavity count and complexity, followed by T1 samples within one week. Existing tools can usually start production within 10 to 15 days of order confirmation.
For standard sizes and colours the minimum is usually one pallet or one production run; for custom tooling the economic minimum depends on the tooling cost amortised over the expected volume. Send us your annual volume and we will calculate the break even point.
Yes. {mat1} is one of our regular materials for this item, and we can supply virgin, modified and certified grades with full traceability. Material certificates and test reports are issued per batch.
Our team supplies cosmetic and personal care plastic packaging to water and wastewater treatment customers worldwide, with samples, material certificates and full inspection reports available before mass production.
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