Ethylene Vinyl Acetate (EVA) and Polypropylene (PP) are the two most quoted options for agricultural plastic products in industrial packaging projects. Both are widely available, but they behave very differently once they are in service.
Use it as a working checklist when you write your next enquiry.
This category covers a family of products rather than a single item. In practice a buyer defines agricultural plastic products 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 drip line 16 mm with 0.2 L/h emitters; greenhouse film 100 to 200 micron; mulch film 8 to 50 micron. Materials most often specified are Low Density Polyethylene, High Density Polyethylene, Ethylene Vinyl Acetate, Polypropylene, and the choice between them changes stiffness, temperature resistance, chemical behaviour and price.
In the industrial packaging sector the decision is usually driven by drop protection and cost per pack, with recyclability as a secondary requirement. Typical end uses include blister trays, strapping, stretch film.
Typical values for a general purpose grade are listed below; filled, stabilised and speciality compounds will differ.
| Material | Density | Tensile strength | Service temperature |
|---|---|---|---|
| Low Density Polyethylene | 0.91-0.93 g/cm³ | 8-20 MPa | -50°C to 70°C |
| Polyvinyl Chloride | 1.38-1.45 g/cm³ | 40-55 MPa | -10°C to 60°C |
| Polypropylene | 0.90-0.91 g/cm³ | 25-40 MPa | -10°C to 100°C |
Ethylene Vinyl Acetate is frequently the default selection here: Foamed EVA is the standard cushioning and buoyancy material in sports and marine products.
Ethylene Vinyl Acetate grades offer very flexible and elastic, while Polypropylene brings lowest density among commodity plastics. For industrial packaging service the difference shows up in chemical resistance and in the long term behaviour under load.
In short: choose the first option when stiffness, heat and dimensional stability dominate; choose the second when impact, cost and processing speed matter more.
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.
Use this checklist when comparing two or three supplier quotations.
Send this list to your supplier with the drawing and you will receive comparable quotations from every factory you contact.
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.
Colour is controlled with a masterbatch reference approved by the customer, and every production lot is checked against the approved sample under standard lighting before shipment.
Standard production tolerance follows the relevant ISO or DIN tolerance class for the process; tighter tolerances are possible after machining or grinding, but they add cost. Define the tolerance only on the functional dimensions.
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.
Standard packing is export cartons on fumigation-free pallets, with custom labelling, barcode and retail packing available. We also handle consolidated containers and door to door delivery.
Share your specification and quantity with us and we will recommend the most cost effective material, tooling route and packing method for your market.
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