Re: Respirator needed with Enamel paint hardener???????
When it comes to ISO's, thats a debated subject. For liabilty reasons, the manufacturers state that even the organic filtered masks wont protect fully, but off the record, they kinda do.
for brush/rolling, you're not atomizing the mixture, so its not as bad. For spraying, an air fed system is the way to go, especially indoors.
Just remember, its cyanide youre dealing with.
Ive used a paint grade 3m organic filtered mask, for non spraying......if you can smell it, you're not protected is a guideline.