HusFix, best-before date passed

[Wedge]

I've found a box of HusFix in storage. I see now that it apparently has a best-before date, with a maximum storage time of one year. I have no idea how old it is, but it's definitely a few years past its expiration date.

What happens after a year? The box says "If stored incorrectly, the curing time is extended." I'm just planning to even out some fairly shallow dips in a concrete floor and then lay laminate flooring on top, so it will just be thin layers that should cure in a few hours anyway.

The warning text also states that iron sulfate is used to reduce hexavalent chromium, and that this effect diminishes after a few months, which increases the risk of eczema. I wasn't planning on using my fingers anyway, given how corrosive it is...

Or is it foolishly frugal to try to use it? Maybe it's better to just get a fresh package?

 

[Stefan N]

The risk is that it won't cure as it should, buy new but buy flytspackel fin instead, which is intended for this.

 

[GoForIt]

Or make a small batch and put it on a wooden board to see if it hardens normally.

 

[Wedge]

Thank you for the answers!
I've tested it now, it worked.