what is best roller type to put down clear aliphatic urethane?

[CT2012]

Am using an aliphatic acrylic urethane (Corotech v500). Surface is not the best in some sections (about 20% of total floor area is a little bumpy and needs some extra care/paint).

I used a regular 9" x 3/8 roller to do the epoxy, it worked fine. Wished I'd have had bigger 18" roller but I needed the shorter one for greater control.

Is it better to use the same size or go with large for final gloss coat?

Thanks for any suggestions.

 

[Shea]

1/4" rollers work best with urethane since it goes down thin. 9" wide works fine while the 18" gets the job done faster and creates less chances to develop a roller mark.

 

[CT2012]

should i put in on thick? i've got what should be plenty of material, 2 gallons for a 20x20.
or is thinner better? specs call for 3.8mils, i don't really know what that means in terms of how much the roller is pushing around. when i was doing the epoxy, i had about a 1/3 of a can left in the end (i had 2 gallons of epoxy as well). concrete soaked it up more in some spots vs. others (even though i also pre-primed it), but i figured that was going to happen and made the best of it. i didn't have a perfect surface to work with. hindsight i should've used more primer (i only used a gallon), but i didn't know how much it would absorb and was under time pressure to get it done due to pending colder temps and outside moisture/humidity.

 

[Shea]

Do not put it on thick. Thin to win. Urethane will cloud up and orange peel if you try to put it on thick. That is why a 1/4" roller in most circumstances is best.

Check out this thread here.

 

[tncatadjuster]

I like to use 3/8", requires a little more attention but 1/4" just can't cover area quickly like a 3/8", and leveling can be a chore with a 1/4". Buy the best cover you can this is the finishing touch to a lot of work. Shed resistant ultra whatever.

Compute the area and do not put it on too thick as stated, it will be a soft surface in thick areas.

 

[metalwork72]

I just coated my floor with two coats of Legacy's Slow cure polyaspartic 80% solids coating over top of epoxy primer using 3/8 rollers. 900sq ft. 4.5 gallons of primer. 5 gallons of poly on the first coat, second took 2.5. No roller marks. Awesome sheen.

 

[Shea]

I just coated my floor with two coats of Legacy's Slow cure polyaspartic 80% solids coating over top of epoxy primer using 3/8 rollers. 900sq ft. 4.5 gallons of primer. 5 gallons of poly on the first coat, second took 2.5. No roller marks. Awesome sheen.

Let's see some pictures

 

[CT2012]

shea i ended up using 1.5 gal's for 400 sq. ft., with a 3/8" roller.

turned out great.

thanks for the tips.

metalwork let's see some photos of that job, it sounds like the surface looks like glass!

 

[Shea]

Glad it worked out well!

 

[LegacyIndustrial]

I just coated my floor with two coats of Legacy's Slow cure polyaspartic 80% solids coating over top of epoxy primer using 3/8 rollers. 900sq ft. 4.5 gallons of primer. 5 gallons of poly on the first coat, second took 2.5. No roller marks. Awesome sheen.

Show the pics.