Intumescent fire-resistant paint from Canada?

[Yankee Chronicler]

I'm reviewing plans for a project that has a really technical/legalistic issue caused by some "smart" person creating a so-called "lease parcel" that covers portions of three separate deeded parcels owned by two separate owners. The result is that there are some exterior steel columns and girders that are too close to property lines and that need a fire-resistance rating -- which, or course, the architects didn't even consider.

For a variety of reasons, both aesthetic and programmatic, they don't want to wrap the members in any sort of U.L. assembly, and conventional spray-applied fire-resistive materials would not be acceptable for visual reasons. Many years ago, I was involved in a project that faced a similar issue and the solution was a then-new, high-tech (and high cost) intumescent paint from Canada that provided a smooth, hard, satin or eggshell finish but still provided the required rating. That product could make all the difference on this project.

Problem: I don't remember what it's called. Would any of the Canadian members here happen to know the name of the product I'm thinking of?

 

[tmurray]

DC315? https://nrc.canada.ca/en/certificat...blications/document.html?id=14036-R&type=cert

I've only seen it used for covering foam though, so you might be thinking about something else.

 

[Yankee Chronicler]

Thanks. Definitely not the same product. The product we used back then was for application directly into steel, and it provided a smooth, hard finish like any quality finish paint. I'm going from memory in thinking it came from Canada, but I'm about 98% certain on that.

 

[steveray]

I think this crap comes from CT...I've had people try to use it before....

Fire Barrier Paint

Water Based Fire Resistant Intumescent Paint

flameoffcoatings.com

 

[bill1952]

Any time the issue has arisen on a job site, the contractors call it liquid gold.

 

[Yankee Chronicler]

I think this crap comes from CT...I've had people try to use it before....

Fire Barrier Paint

Water Based Fire Resistant Intumescent Paint

flameoffcoatings.com

Thanks. I found that one. It's not the one I think I remember, and this one is only for interior use. I need one suitable for exterior use and long-term weather exposure.

 

[Inspector Gadget]

I have had people pitch the idea of intumescent paint before. I have yet to have a designer provide me a UL(C)-listed assembly that included intumescent paint, and I have rejected every suggested use accordingly.

There are some European products that (IIRC) meet Euro fire-rated tests. If someone came to me with an alternative solutions proposal to use Euro fire-rated paints, I might entertain it. Might. (In this case "entertain" does not mean "accept.")

But once the costs are considered ... in the case at hand, I suspect the solution is to wrap the still in exterior grade F/R drywall and move on. Or protect the steel with a brick/stone veneer, if such things are allowed in your codes.

 

[bill1952]

Not this? https://contegointernational.com/contego-high-solids/

 

[Yankee Chronicler]

Bill --

The name doesn't sound familiar, but that product could do the job. And it seems to have an ICC ESR approval, which would be ideal.

 

[Inspector Gadget]

Not this? https://contegointernational.com/contego-high-solids/

Well dang. That would be the first.

 

[bill1952]

Liquid gold. I can hear the contractor.

 

[Yankee Chronicler]

Liquid gold. I can hear the contractor.

But ... but ... their web site says it's "surprisingly affordable."

 

[tmurray]

Not this? https://contegointernational.com/contego-high-solids/

I forgot about that stuff!

 

[Paul Sweet]

CAFCO makes an intumescent coating that can be used outside:

CAFCO SprayFilm WB 4 & ISOLATEK Type WB 4 Intumescent Coatings

Overview Testing Physical Properties Product Information CAFCO SprayFilm WB 4 / ISOLATEK Type 4 Intumescent Fire Resistive Material (IFRM) CAFCO SprayFilm WB 4 / ISOLATEK Type WB 4 intumescent coating, when combined with CAFCO SprayFilm Topseal®, is a water-based system investigated by...

www.isolatek.com

I saw an intumescent fireproofing used on exposed structural steel in a stairway several years ago. It was very difficult to get the orange peel down to an acceptable level.

 

[Yankee Chronicler]

CAFCO makes an intumescent coating that can be used outside:

CAFCO SprayFilm WB 4 & ISOLATEK Type WB 4 Intumescent Coatings

Overview Testing Physical Properties Product Information CAFCO SprayFilm WB 4 / ISOLATEK Type 4 Intumescent Fire Resistive Material (IFRM) CAFCO SprayFilm WB 4 / ISOLATEK Type WB 4 intumescent coating, when combined with CAFCO SprayFilm Topseal®, is a water-based system investigated by...

www.isolatek.com

I saw an intumescent fireproofing used on exposed structural steel in a stairway several years ago. It was very difficult to get the orange peel down to an acceptable level.

That was the great aspect to whatever product it was that I encountered "back then" -- it went on like paint and provided a very acceptable appearance.

In this instance I'm the plan reviewer, not the architect. I don't have to worry about making decisions on what to use, I just get to sit back and play spoiler. That said, I understand that the architects have inherited a problem created on paper by the land owner's LLC shell game, so if I can informally offer anything helpful I'd like to do that. But I have to be careful not to do or say anything they can later construe as "He told me to do [___]." All I can tell them to do is to comply with the codes.

Read the literature on the Isolatek CAFCO stuff. IIRC, it's for interior use only.

 

[steveray]

Read the literature on the Isolatek CAFCO stuff. IIRC, it's for interior use only.

I think the new library in Bloomfield used that for the garage...Semi interior.....But they have a lot of products....