If you are arranging repatriation, you will hear the term “zinc-lined coffin”. It is used in most international repatriation quotes, and families often wonder what it means and why it is required.
What it is
A zinc-lined coffin is a standard wooden or MDF coffin with an inner lining of zinc sheet metal. The zinc is soldered shut, creating an airtight, hermetically sealed container around the body.
It looks like a regular coffin from the outside. The zinc lining is internal. The outer casket is often the presentation coffin that will be used for the funeral service in the UK, or it may be a simpler transit coffin with the body transferred to a presentation coffin on arrival.
Why it is required
International repatriation involves air cargo. Airlines and international aviation regulations (specifically IATA regulations on human remains) set out the conditions under which bodies can be transported.
The requirements exist for several reasons:
- Decomposition during transit (particularly on long-haul flights) can create health and odour issues
- Customs and health authorities in many countries require evidence that remains are properly contained before permitting departure and entry
- Airlines have obligations to other cargo and to aircraft staff
A hermetically sealed coffin meets all of these requirements. The body is contained, the risk of leakage is eliminated, and border health authorities can allow transit without requiring inspection.
The alternative is full embalming, which slows decomposition and allows transit without a zinc lining in some cases. In practice, most international repatriations use both.
The embalming question
Embalming involves replacing body fluids with preservative chemicals, which significantly slows the natural decomposition process. It is standard practice in international repatriation.
Some families, particularly those from religious traditions that prefer not to have the body embalmed (many Muslim families, for example), ask whether it is possible to avoid it.
In most cases, the answer is that a zinc-lined sealed casket is an acceptable alternative. The body is not embalmed but is sealed immediately. This is the approach commonly used for Muslim repatriations. It requires that the body is sealed promptly after death, and that the transit time is not excessive.
There are practical limits: on very long routes (Australia to the UK, for example, with a long transit time), the question of preservation becomes more pressing. Your funeral director can advise on the specific route.
The effect on the funeral in the UK
The zinc liner is sealed at the departure end. In the UK, the receiving funeral director will need to cut the zinc seal to access the body for any preparation work (including dressing, laying out, or viewing) before the funeral service.
If the family wishes to view the body before the funeral, this is possible. The zinc liner is cut by the funeral director. Viewing after a long repatriation may not always be advisable depending on the condition of the body, and the funeral director in the UK will be honest with you about what is appropriate.
The zinc liner does not affect cremation in the UK. Zinc is a metal, and crematoriums in the UK have the equipment to handle it. You will be asked to confirm the contents of the coffin with the crematorium, and the zinc liner will be noted.
For burial, the zinc liner remains in place. It is buried with the body.
What it costs
The zinc-lined coffin and sealing is included in most repatriation quotes as a line item or bundled into the “departure country preparation” fee. It is not separately negotiable, since it is a regulatory requirement.
The cost of the zinc liner and soldering is roughly £300 to £700, depending on the country and the funeral director. It is a small part of the overall repatriation cost.
One practical note
If you are given a choice between a transit coffin and a presentation coffin for the departure, the main consideration is whether you want the funeral in the UK to use the same coffin. A presentation coffin means the body arrives in the coffin that will be used for the service. A transit coffin means the receiving funeral director in the UK will transfer the body to a new coffin, which adds a small cost and requires the zinc to be cut before the service.
Either way, the requirement for the zinc lining at the transport stage is the same.