Ask ten suppliers what's in your hard shell and you'll get ten different answers — most of them vague. PC. ABS. PC+ABS. Blended. "Premium." None of those words mean much until you see the documentation behind them.
Here's the uncomfortable truth we've learned in 17+ years on the factory floor: PC and ABS are the two most common hard-shell plastics in luggage, and PC+ABS blends sit between them. The material choice drives impact performance, weight, and price — and it also drives the compliance questions. Additives, coatings, colorants, and recycled content all need documentation. Neither material is "certified" as such; what matters is whether the specific compound in your shell complies with the rules of your market.
This guide is about identifying and documenting the real compound. For the same compliance questions across every other luggage material — PP, aluminum, PU, textile and more — use the luggage material compliance guide; to see where PC and ABS sit among all shell families, start with the the material-by-material breakdown.
What Is PC?
Polycarbonate is an impact-resistant, lightweight engineering plastic. PC shells are known for flexing under impact rather than cracking, which makes them popular for premium hard-side cases. The material questions sit in the additives and coatings: what is in the compound, and what is on the surface.
What Is ABS?
ABS is a tough, economical thermoplastic. ABS shells are stiff and rigid, with good impact strength for everyday use, which is why ABS is widely used across mid-range luggage. Compliance questions sit in colorants, additives and, increasingly, recycled content.
What Is PC+ABS?
PC+ABS is a blend that combines polycarbonate's impact behaviour with ABS's rigidity and processability. Many hard shells are PC+ABS rather than pure PC — including some that are marketed as "PC." Buyers should confirm the actual blend ratio, because it affects performance claims and the material documentation. Buying decisions that hinge on that blend are covered in the PC luggage buying guide.
Additives and Coatings: The Compound Is Not the Whole Story
Flame retardants, plasticizers, and stabilizers can be added to the resin, and the shell is usually coated or painted. Restricted substances can appear in any of these layers. Ask for the compound composition and the coating chemistry — both, not just one.
Recycled Materials Change the Picture
Recycled content is a growing part of luggage, and it changes the compliance picture. Recycled resin can vary in composition, so chemical testing becomes more important, and environmental claims about recycled content need substantiation in markets such as the EU. If the shell uses recycled material, ask how composition is controlled and verified. In our sample room, we've watched buyers assume "recycled" means "safe" — it doesn't; it means "documented."
Chemical Compliance: The Usual Questions for Plastic Shells
Answer first: a hard shell is not exempt because it is plastic — what applies depends on the market and the product category, not on the name of the material. For the EU, the chemical framework is REACH (Regulation (EC) No 1907/2006), and the question buyers ask most is SVHC content: the candidate list stood at 253 substances as of February 2026, and the 0.1% by weight threshold triggers communication and reporting duties. RoHS is a different instrument — it applies to electrical and electronic equipment, so it reaches a smart case's electronics rather than an ordinary shell. Coatings, prints and soft trim carry their own substance questions, and recycled resin adds one more layer because its composition varies from batch to batch. That is why the document that matters here is not a certificate for "PC" or "ABS" but a test report that names the compound, the batch, the test method and the laboratory.
- Restricted substances in the resin and additives
- REACH obligations for chemicals in the compound and coating
- Children's product limits where applicable
- Coating and paint chemistry, including heavy metals
PC vs. ABS Comparison
Short answer: this is a product-position decision, not a compliance decision — PC is lighter and more impact-resistant, ABS is more rigid and more economical, and PC+ABS blends sit between the two. Compliance enters at the next step, and it enters the same way for all three: the evidence that matters is a test report that names the compound and the batch, because blended and recycled resin can vary in composition and "premium" is not a specification. Two consequences follow. First, the material decision belongs at specification stage — before samples exist — because changing it later invalidates testing and tooling assumptions. Second, some shells marketed as "PC" are in fact PC+ABS, so the compound on the documentation has to match the compound in the container.
| Property | PC | ABS | PC+ABS |
| Impact resistance | High — flexes under impact | Good — stiff and rigid | Balanced |
| Weight | Light | Moderate | Between |
| Cost | Higher | Economical | Between |
| Typical use | Premium hard shells | Mid-range hard shells | Wide hard-shell range |
| Compliance focus | Additives, coatings | Colorants, additives, recycled content | Compound ratio, coatings |
What a Buyer Should Do With This
- Confirm the actual shell material and blend ratio in the specification
- Request the material declaration and compound information
- Ask about recycled content and how it is controlled
- Request coating and paint chemical documentation
- Agree performance testing (drop, corner impact) per your contract
- For children's products, apply the children's product rules on top
My blunt advice: the material decision belongs at specification stage, not after samples exist. It affects performance, cost, and compliance — so it belongs in product development, in writing, before you cut a mold.
If you are developing a new luggage collection, it is useful to discuss compliance requirements before finalizing materials, components, and production specifications. CLK Luggage supports OEM/ODM luggage development and works with international buyers on product specifications, quality control, and market-specific documentation.
One last thing: regulations and requirements can change. Always confirm the latest requirements with the relevant authority or a qualified compliance professional before placing an order or shipping products.
Frequently Asked Questions
Which is better, PC or ABS?
The right pick depends on the product position. PC tends to be lighter and more impact-resistant; ABS is more economical and rigid; PC+ABS blends the two.
Is PC or ABS "certified"?
No. Materials comply with rules or they do not; the evidence is compound, coating, and testing documentation.
What compliance questions apply to plastic shells?
Restricted substances in the resin and additives, coating chemistry, recycled-content variability, and children's product limits where applicable.
Does recycled ABS need more testing?
Recycled content can vary in composition, so chemical testing and composition control become more important.
What documents should I ask for?
Material declaration, compound and additive information, coating chemical reports, and test reports for the shell.
When should I choose the material?
At specification stage — the material decision affects performance, cost, and compliance, so it belongs in product development.
About the Author
Written by the CLK Manufacturing Team — custom luggage OEM/ODM experience since 2009 from our factory in Ji'an, Jiangxi, China. Updated: 2026-08-15.
Related Products & Sourcing
CLK Luggage (Jiangxi Chengleke Leather Co., Ltd.) manufactures custom hard-shell luggage, aluminum-magnesium cases and luggage sets for brands, retailers and corporate clients. Relevant resources:
- Browse our luggage sets and custom OEM/ODM luggage manufacturing
- Why choose CLK — factory profile, quality control and certifications
- Get a quote: contact our team or email clkbusiness@clkluggage.com