weight of spray on fire proofing 1

[Lutfi]

I am away form my office and need the weight (psf) of spray on proffing.

Your help would be much appreciated.

Regards,
Lutfi

 

[SlideRuleEra]

Lutfi - Per US Army COE USGF, for exposed structural components minimum applied dry density is 22 Lb/Cu Ft (Paragraph 2.1.1.2)

Minimum average thickness is 0.375 inches (Paragraph 3.4.4)

Works out to 0.69 Lb/Sq Ft (minimum)

Here is the link, in case you need more detailed info

http://www.wbdg.org/ccb/DOD/UFGS/UF07810.pdf

http://www.SlideRuleEra.net

 

[Lutfi]

Slide Rule,

Many thanks! I was going to estimate about 3 psf and wait to verify.

Thanks again

Regards,
Lutfi

 

[Ron]

Lutfi....depends on whether cementitious or non-cementitious binder.

If cementitious (Grace Monokote or similar), should be between about 22 and 28 pcf. If non-cementitious(Cafco Blazeshield or similar), will be between about 12 and 15 pcf.