If you specify Polyvinylidene Fluoride (PVDF) for pharmaceutical blister packaging, a handful of properties decide whether the part survives forming and service. These are the values worth checking on every data sheet.
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 pharmaceutical blister 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 film gauge 200 to 350 micron; cavity layouts 4 to 30 tablets; child resistant and senior friendly options. Materials most often specified are Polyvinyl Chloride, Polyethylene Terephthalate, Polypropylene, Polyvinylidene Fluoride, and the choice between them changes stiffness, temperature resistance, chemical behaviour and price.
In the retail and merchandising sector the decision is usually driven by shelf presentation and print quality, with stack strength as a secondary requirement. Typical end uses include dump bins, counter displays, pegboard blisters.
These figures are typical for commercial grades and should be confirmed against the supplier's certificate for your specific lot.
| Material | Density | Tensile strength | Service temperature |
|---|---|---|---|
| Polyvinyl Chloride | 1.38-1.45 g/cm³ | 40-55 MPa | -10°C to 60°C |
| Polyvinylidene Fluoride | 1.78 g/cm³ | 35-55 MPa | -40°C to 150°C |
| Polyethylene Terephthalate | 1.35-1.40 g/cm³ | 50-70 MPa | -40°C to 70°C |
Polyvinylidene Fluoride is frequently the default selection here: PVDF is specified where both chemical resistance and purity are mandatory, such as UPW loops.
These figures are typical for commercial grades and should be confirmed against the supplier's certificate for your specific lot.
Density 1.78 g/cm³, tensile strength 35-55 MPa, continuous service temperature -40°C to 150°C and melt range 170-180°C are the four values to circle on the data sheet. Everything else is secondary for most retail and merchandising projects.
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.
Work through these points in order and most specification mistakes disappear.
Send this list to your supplier with the drawing and you will receive comparable quotations from every factory you contact.
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.
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.
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.
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.
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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