What Should Never Be Laminated

Lamination is irreversible. The film bonds to the document and cannot be removed without destroying it. That makes it excellent protection for things that need to survive handling — and the wrong choice for anything whose value depends on remaining original.

Never laminate these

Original certificates and legal documents

Birth, marriage and death certificates, academic certificates, passports and identity documents. Many issuing authorities will not accept a laminated original, because lamination hides the security features — watermarks, embossing, raised seals — that are used to verify authenticity.

People laminate these precisely because they are important, and in doing so make them unusable for the situations where they matter. Laminate a photocopy instead and keep the original flat in a folder.

Anything of historical or collectable value

Photographs, letters, stamps, tickets, autographs, artwork. Lamination destroys collectable value entirely and cannot be undone. Archival sleeves — inert polyester pockets the item slides into — protect without bonding.

Documents you may need to amend

Anything that gets signed, stamped, updated or written on. A laminated form is a form nobody can complete.

Thermal paper

Receipts and some tickets are printed by heat rather than ink. Running them through a hot laminator turns them uniformly black. If a receipt must be preserved, photocopy it first — thermal print fades over time anyway.

Items already laminated

The new pouch cannot bond to the old film. It will delaminate, and worse, the adhesive can squeeze out and transfer to the rollers.

Where lamination is exactly right

• Menus, price lists and instruction cards
• Teaching and reference material handled by many people
• Signage, indoor and outdoor
• Luggage and equipment tags
• Copies of documents used in the field
• Anything wiped clean regularly

The common factor is that the item is a working copy, replaceable, and its job is to survive handling.

Lamination is not archival

Worth stating plainly, because it is widely assumed otherwise. Standard laminating film is polyester with a heat-activated adhesive. Over years, particularly in warmth or light, the adhesive can yellow and the film can become brittle. It does not prevent the paper beneath from ageing, and in some conditions the trapped environment accelerates it.

For genuine preservation, the answer is an inert sleeve, a dark dry place and a stable temperature — not lamination.

Alternatives worth knowing

• Archival polyester sleeves. The item slides in and out. Reversible.
• Cold laminating pouches. Pressure-sensitive rather than heat-activated. Still permanent, but safe for heat-sensitive originals.
• Encapsulation. Film sealed around the document with a border, without adhesive contacting the item. Used in conservation and reversible by cutting the border.
• A good photocopy. Cheap, and it solves most cases where someone wants to laminate an original.

The rule of thumb

If losing the original would be a problem, do not laminate it. Laminate the copy.

Our pouch range includes thicknesses for working documents and signage. If you need advice on a specific job, the contact page has our details.