Choosing a resin for bottle packaging comes down to three questions: what goes inside the bottle, how hot it is filled, and how much clarity the brand needs. This page is the fast reference. For the full technical breakdown — temperature ceilings, barrier data, chemical resistance and regulatory requirements — see our complete guide to choosing bottle resin.
PET vs HDPE vs PP at a Glance
ANIMAL DE COMPAGNIE, HDPE and PP together account for over 85% of all plastic bottle production worldwide. Each resin has a different balance of clarity, barrier, chemical resistance, heat tolerance and cost per unit — and that balance, not supplier preference, is what should drive the specification.
Quick Comparison Table
| Property | ANIMAL DE COMPAGNIE | PEHD | PP |
|---|---|---|---|
| Clarté | Excellent (clair) | Opaque / translucent | Translucent |
| Oxygen barrier | Excellent | Moderate | Moderate |
| Chemical resistance | Moderate | Excellent | Good |
| Impact strength | Good | Excellent | Moderate |
| Max fill temperature | ~75°C (85°C crystallised neck) | ~90°C | ~130°C |
| Cost per unit | Medium | Low | Medium–low |
| Recyclabilité | Widely recycled (#1) | Widely recycled (#2) | Recyclable (#5) |
| Common colours | Clair, light blue, ambre | White, natural, custom | Natural, white, custom |
Which Resin Should You Choose?
- Choose PET if your product needs high visual clarity, you are packaging beverages or edible oils, you need a strong oxygen and CO₂ barrier, and your product is filled at ambient temperature (below 70°C).
- Choose HDPE if your formulation contains solvents, alcohols or aggressive chemicals; you need impact resistance for shipping; your product is moisture-sensitive; or cost optimisation is the primary concern.
- Choose PP if your product is filled hot (up to 130°C), requires autoclave or steam sterilisation, needs flexural strength for flip-top caps, or is a viscous product that benefits from heat transfer through the wall.
Resin Coverage in Our Bottle Range
- PET bottles — injection stretch blow moulded, from 10 ml sample sizes to 5 L bulk containers
- HDPE bottles — extrusion blow moulded, 15 ml à 10 L, including handleware and wide-mouth styles
- PP bottles — hot-fill, sterilisation and medical-grade applications
- PET jars and PP jars — wide-mouth containers for creams, powders and food
Need the Full Technical Detail?
Temperature limits, oxygen and moisture barrier performance, chemical resistance data, FDA 21 CFR and EU 10/2011 requirements, and a five-factor selection framework are all covered in our resin selection guide for custom plastic bottles.
If you would rather have a material recommendation for your specific formulation, send us the product chemistry, filling temperature and target shelf life and our engineers will come back with a resin, a bottle design and a quotation. Request a quote, or browse the full product range.
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