Can you make Eva Foam without using Formamide?

  • Thread starter Cobul
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In summary, formamide is used as a plasticizer for EVA foam, but it is also considered a carcinogen. Due to this, France and Belgium have banned the use of EVA foam in toy mats. However, it is possible to make EVA foam without using formamide, and there are many other applications for EVA besides toy mats. Additionally, EVA foam used in biomedical engineering may contain small concentrations of formamide that dissolve in the body. It is important to note that some sources may be biased, such as companies selling the product.
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Cobul
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Formamide gives foam mats their soft, squishy texture, but some said it’s also considered a carcinogen. For these reasons, France and Belgium banned EVA foam a few years ago.

Question. Can you make Eva foam without using Formamide?

If none. Then ALL the Eva foam being sold are the world has Formamide?
 
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  • #2
I did a quick web search on this. It seems that the restriction is applied specifically to Toy Mats and was last re-introduced in 2016 re-introduced in 2016. Apparently, EU countries are directed to limit formamide emissions form child's toys by 2017.

The limits imposed by Belgium and France have varied widely - variously 2ppm, 200ppm, and 5000ppm.

According to this site:
Typically, formamide may be present in foam mats as a plasticizer for ethylene-vinyl acetate (EVA), as a decomposition product of blowing agents used in the manufacture of foam products, or as a residual solvent from EVA resin manufacture. According to the French Agency for Food Safety, Environment, and Labor (ANSES), in the case of puzzle mats, children can inhale the chemical emitted by the mats into the air.

All of the uses or sources listed in the above quote would seem to be "optional". So the direct answer to your question would be "Yes, you can make EVA that has no significant formamide".

It is also worth noting that there are many application for EVA besides toy mats. From the Wiki article, those include:
EVA is also used in biomedical engineering applications as a drug-delivery device. The polymer is dissolved in an organic solvent (such as dichloromethane). Powdered drug and filler (typically an inert sugar) are added to the liquid solution and rapidly mixed to obtain a homogeneous mixture. The drug-filler-polymer mixture is then cast into a mold at −80 °C and freeze-dried until solid. These devices are used in drug delivery research to slowly release a compound. The polymer does not biodegrade within the body, but is quite inert and causes little or no reaction following implantation.

So it would seem that a version of EVA contains small enough concentrations of formamide to be included in a mixture which eventually dissolves in the body.

I am providing one more link with this caution: This website is from a company that sells these mats.
As a seller of the product, it may be more expert than other sources, and also potentially more biased.

One of the unsurprising points made in that last citation is that the product will outgas any formamide in short order.
 
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Related to Can you make Eva Foam without using Formamide?

1. What is formamide and why is it used in making Eva Foam?

Formamide is a colorless liquid that is commonly used as a solvent and a softening agent in various industries. It is also used in the production of Eva Foam as it helps to break down the polymer chains and make the foam more pliable and easier to work with.

2. Is it possible to make Eva Foam without using formamide?

Yes, it is possible to make Eva Foam without using formamide. There are alternative solvents and softening agents that can be used in the production process, such as dimethylformamide or dimethyl sulfoxide.

3. Are there any health or environmental concerns associated with using formamide in Eva Foam production?

Yes, there are some health and environmental concerns associated with using formamide. It is classified as a potential reproductive toxin and can also be harmful to aquatic life. Therefore, it is important to handle and dispose of formamide properly.

4. How does the quality of Eva Foam made without formamide compare to that made with formamide?

The quality of Eva Foam made without formamide can be comparable to that made with formamide. However, the absence of formamide may result in a slightly stiffer foam and may require different processing techniques to achieve the desired level of flexibility.

5. Are there any benefits to using formamide-free Eva Foam?

Yes, there are some benefits to using formamide-free Eva Foam. It eliminates the potential health and environmental risks associated with formamide and may also be more cost-effective in the long run as alternative solvents may be cheaper and more readily available.

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