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My shoe got caught by a closing aluminum door and the edge of the door punched a hole on the EVA sole.

Puncture damage in sole

What would be the best way to fix it? Would rubber cement be a good patch for this?

UPDATE

Used a PU sealant, cut off the excess, and smoothed it out with some sandpaper.

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    A torn spacesuit is a serious problem - do not use it for any further Extra Vehicular Activity. – Lefty May 23 '17 at 6:39
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White polyurethane (PU) sealant is a good candidate and should yield a nearly invisible repair. It's not foam but of a similar softness and flexibility as foam so there is little danger of mechanical separation during use.

Instructions:

  1. Clean the hole thoroughly inside to de-grease it. I usually use ethanol. In your case a cotton bud would make a good cleaning tool.

  2. Push in the tip of a sealant gun into the hole and fill it with PU sealant. It's fine if some comes out the hole, at least you'll know it's full …

  3. Use a plastic scraper to remove excess material and create a smooth exterior. An old credit card works well.

  4. Let it cure for a few days. PU sealant hardens by reaction with air humidity at a rate of 1-3 mm/day.

Disadvantage: If you don't have it around, most likely you'll have to buy a full 300 ml cartridge of PU sealant. It's universally useful and lasts ca. 6 months once the cartridge is open, so not a big deal.

Variation: Note that there are also PU based construction glues. These are a higher strength material but also become harder than sealants, so I think that a sealant mimics the mechanical properties of the foam better in this case. Anyway, both would do.

Source: Educated guess from experience. I glued maybe 8 shoe soles back in place over the years, some with a foam backing. And PU sealant / glue worked best.

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    That's what I used! Patched it up in May '17; updated the post with pics. – dork Nov 15 '18 at 9:00
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Hot glue sticks well to EVA foam... because it's made from EVA!

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Sugru (Sugru website ) might have been a viable option

  • Nice! Wish I saw this sooner! – dork Jul 22 '17 at 3:33
  • We typically don't want specific products recommended on this site, as they may not offer the best option and may also be seen as spam. Instead we prefer that you explain a type of product that could work (more general instead of specific). Could you please edit you answer to do this? – michaelpri Jul 22 '17 at 19:48

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