spar urethane odors vs fumes and its flammability

[bobbo268]

So i'm going to spar urethane my pontoon deck with weekend in a friends garage overnight so i can do the carpet next weekend. It needs to be heated. I was going to apply it outside, wait a half hour, then put it inside and heat with the hanging natural gas heater and a free standing propane tube heater, then repeat in 5 or 6 hours, then let sit overnight....

that being said, i know the stuff has flammable fumes, so will this work? Are fumes present as long as odors are present? Should i let it stand longer outside? Anyone have any technical input? it will be about 40 degrees outside but i don't want to blow up the garage. bad karma.

 

[jigngrub]

Re: spar urethane odors vs fumes and its flammability

Just another reason to go with epoxy resin, epoxy isn't flammable.

Spar isn't as highly flammable like some other more volatile mixes, it has a flash point similar to kerosene so you should be ok.

What did you do about filling in the wavy gravy?

 

[bobbo268]

Re: spar urethane odors vs fumes and its flammability

I sanded a little more and will sand a little more but the super thin carpet that was on there before covered it fine, because I didn't know it was there. Since I ended up staying with a 26oz carpet it shouldn't be noticeable

 

[kfa4303]

Re: spar urethane odors vs fumes and its flammability

you'll be fine. the spar isn't overly combustible and as long as you don't have an open flame you'll be fine.

 

[jbcurt00]

Re: spar urethane odors vs fumes and its flammability

I agree you should be fine, the fumes also need to be concentrated for there to be a problem.

But aren't hanging natural gas & propane tube heaters both open flames?

:watermelon:

Using polyurethane to finish hardwood flooring, we often turned gas water & heat sources off or down very low until the urethane started to cure. No reason to not be careful @ fumes & flames :flame:

Good luck

 

[bobbo268]

Re: spar urethane odors vs fumes and its flammability

you'll be fine. the spar isn't overly combustible and as long as you don't have an open flame you'll be fine.

Wouldn't a hanging natural gas and propane heater be considered open flames? I mean I know they have open flames. ..

 

[Watermann]

Re: spar urethane odors vs fumes and its flammability

What I did in the cold was to heat everything up inside the garage good so that the material was nice and warm. Then shut off the ignition source, next open a window with a fan running to evacuate the fumes. Be sure to wear a respirator while applying the spar. Once I was done I gave it about another 1/2 hour to clear the fumes before closing the window and fired the heat back up. I also turned the fan around and left it running to disperse fumes and help with the drying.

 

[kfa4303]

Re: spar urethane odors vs fumes and its flammability

just put the heaters on the opposite side of the garage from the piece that drying.

 

[Bob_VT]

Re: spar urethane odors vs fumes and its flammability

The heat will dry it. The smell will linger but the paint will actually "flash" dry with the heat and you will be fine. I have applied flammable paints and the smell is a worse risk to your health and more of a risk of a fire.