Pr stinks!

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maxwell_smart007

maxwell_smart007

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I just made up a batch of PR - hadn't used it before - and MAN, does that stuff reek! It's permeated all the way upstairs!

I was going to leave it and go out for the night, but I might just toss it outside and call it a write-off, as I don't want to come home to that odor!

One other thought - It's in my basement near the furnace - Is the vapor flammable?

Andrew
 
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ed4copies said:
That's a CLEAN smell Andrew!!!

You fisher-guys need to come smell

DAIRY AIR!!!!!

In Wisconsin!​
Click to expand...

I'm hip, Ed. I used to live a few miles from a pig farm. Holy Crap! Literally! Lemme tell you, not all crap is created equal...

Now, back to Andrew's question. I only know I've been casting in my enclosed shop, with a gas stove for heat. Yes, the smell is nearly impossible to contain, but I don't think in the small quantities we're casting (say, 10 molds or less at a time) the fumes are flammable. I mean, I cure them in a 130 degree toaster oven with an element in there, I've even on occasion set the uncured molds on top of the gas cast iron stove.

I guess the only way to know for sure is to hold a match above a freshly poured mold, but I ain't tryin' that.

Dale
 
maxwell_smart007 said:
I just made up a batch of PR - hadn't used it before - and MAN, does that stuff reek! It's permeated all the way upstairs!

I was going to leave it and go out for the night, but I might just toss it outside and call it a write-off, as I don't want to come home to that odor!

One other thought - It's in my basement near the furnace - Is the vapor flammable?

Andrew
Click to expand...

Not to sound too trite, but I suppose you didn't read any of the messages several of us have written about fume control and venting?

The MSDS for your particular resin should tell you what the vapor flashpoint is, as well as an adequate storage temperature.

Personally- I wouldn't and don't work with PR resins in an inclosed environment with a flame present, but then my advice is worth what you pay for it.
 
Whoa Nelly!!

Charles' advice is worth WAAAYYYYY more than you're paying for. Vapor Flashpoint for Clear Cast PR is 86 degrees F.

I must confess that when I first started casting I didn't really understand all the jargon on the Material Safety Data Sheets (MSDS). After I had been casting (and answering a few posts) for awhile I did my research and had someone explain to me the process by which the standards are set for "flashpoint" and a number of other issues involved with MSDS's. After that my set-up and casting area changed drastically.

Charles has logged more research hours than most of us have turned. I am truly grateful he takes the time to share his knowledge with the rest of us. I know everyone's opinion is important on this website. Fact is, what Glass Scratcher shares is more than just opinion.
 
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Food for thought

Just a little info:

[FONT=Times New Roman, Times, serif]Purpose[/FONT]
[FONT=Times New Roman, Times, serif]The purpose of the Setaflash flash point tester is to determine the flash point temperature of flammable liquids. Above the flash point temperature, a liquid is capable of producing enough vapor to form a flammable mixture with air. This is important information for the safe transportation, storage and use of flammable liquids.[/FONT]




http://www.chem.mtu.edu/~crowl/Setaflash.htm
 
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Hey Andrew, I did the same as you when I first used PR. It smelled the house up for about three days. After I constructed my pressure pot, I now mix outside and place in the pot. Then I carry the sealed pot inside and pressure up. Even if Im not using pressure, I place in air tight containers like gallong glass jars or zip lock bags before bringing in the house. After sitting all night to cure, the odor isnt bad when you remove them. Dont give up on it, we're all waiting to see new ideas from each others trials and tribulations.
 
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Rob,

You must have a sensitive nose! The only time I can smell it is when I have my nose right over the mixing cup. Otherwise, I don't smell anything.
 
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