does this polyurethane resin look off to you?

[Night Star]

Sorry if this isn't the correct place to post , I couldn't find a general topic area to post to.
At the monent im in the process of making a helmet from an anime called akame ga kill

Uk based here*
I brought this 1kg polyurethane resin from ebay yetersday , usually I buy my stuff from Mb-fibreglass but this is from a seller named marrican.



noticed as well it takes much longer to cure than saids 20 min > 3 hours
also a nasty bubbled finish where half the time its hollow inside and just crunches.

I take it either a cheap batch or im just doing this wrong .

 

[SPARTAN II]

Whoa... what's with the beige at the bottom of the one bottle? Is that solidified, or does that part slosh around when you flip the bottle over?

Just a quick glance at that, looks to me like one part of it may have gone bad. Seems like the seller had this sitting around for too long.

As a general rule of thumb, one should use any two-part casting resin he/she buys within one year from the date of purchase to avoid that.

 

[Night Star]

show in the image it was bottled and last till OCT 2015.

The beige stuff doe mix fully back into a mixture , Again only ordered it 3 days ago .
They replied Blaming my ignorance on the room being to humid or poor mixing , I have a Gram scale and a dehumidifier to counter this argument.

Only other thing is with other bottled resin i've had do this, The beige content Is it at least 50/50 from the other solution inside , But this has 1/4

 

[SPARTAN II]

Oops, I missed the expiration date in the pic. I don't read sideways too well, lol.

That's some awesome customer service on thier part, blaming you (the customer) for the results. I can tell they really go the extra mile for customer satisfaction :unsure

Anyway, I've exclusively worked with Alumilite two-part resin myself, and on occasion have had a little bubbling occur on the back of the casting but never like you described.

Sounds like you've got the same setup as I do with gram scale and dehumidifier, which has always worked well for me, so I think you may have simply gotten a bad batch.

Have you tried anymore castings since you discovered this? What it is you're trying to cast, if you don't mind my asking?

 

[Night Star]

This can be closed now