Do polycarbonate and/or polyurethane have latex?

I have a latex allergy and reacted to a charging cable - the manufacturer told me afterwards (when issuing my refund) that their PU was mixed with latex but that this isn’t always the case.

I would also agree with another comment that foam, especially low density foam, has latex in it (think make up sponges), the glue in some plasters does and also the shine on gloss paper is made by adding latex to the coating.

Good luck negotiating all the ways it’s in life, Nina xx

I have a severe latex allergy, what you're reacting to in the wheelchair armrest is the FOAM inside. Most foam contains latex. So if the foam is compressed, it puts some particles air borne that you're inhaling. I think you can get latex free wheelchairs/armrests, you have to look for it though.

We have a general rule against "medical questions," but I think yours is different.

First off, latex is a form of poly-isoprene. The "isoprene" part here is the key chemical identity - the letter (so to speak) that repeats in the polymer.

So latex is chemically quite distinct from polyurethane and polycarbonate. Similarly, polyethylene and polypropylene are also distinct.

In short, from a chemical perspective, all of these materials are all different.

Now, that's not to say that:

• You may have allergies to multiple polymers / plastics.
• Manufacturers may blend multiple chemical components into one object.
• Some latex residue may end up on various objects.

For example, many people in healthcare (as you know) use latex gloves, often with latex powder. Small amounts of the latex powder can remain on a wheelchair - causing problems for sensitive individuals like yourself.

If you're looking for a smartphone, you should be able to find one with a metal / glass case (e.g., iPhone, but also others). In that case, the amount of plastic (polymer) should be minimal and you (or a friend) can thoroughly wipe down the device before you use it (e.g, the wrapping plastic might cause sensitivity).