Block filler

[gnxtc2]

What is good brand of block filler? Prefer an industrial/commercial type block filler. No Homie Depot or Lowes stuff. I want to paint the inside of my shop. I have approx 2100 sq ft of walls.

Thanks

Billy T.
[email protected]

 

[IH82BL8]

What is good brand of block filler? Prefer an industrial/commercial type block filler. No Homie Depot or Lowes stuff. I want to paint the inside of my shop. I have approx 2100 sq ft of walls.

I needed some for my basement foundation wall. It's just as well that you're not going to Lowes or HD, they don't even know what it is. I went to Sherwin-Williams and bought a 5-gal bucket. Being block-fill it doesn't go as far as you might expect. I used about 4 1/2 gallons to cover 400 sq. ft. Put it on with a long-nap roller and be prepared to go over it with a brush to make sure the pores are filled. It's a lot of work, but it's worth it.

 

[PAToyota]

Yep. I used Sherwin Williams Industrial and Marine Coatings Heavy Duty Block Filler:
http://protective.sherwin-williams.com/detail.jsp?A=sku-26004:product-6790

Another option is their Prep-Rite Block Filler:
http://www.sherwin-williams.com/pro/products/preprite_block_filler/

 

[PAToyota]

Some closeup pictures of my wall:

 

[irishtom]

I've sprayed on primer/sealer before the block filler to cut down on the amount of block filler to use. If you have a powerful enough sprayer, you can spray and roll to make the work go faster. You can rent a gas powered unit from your local rent-all. Use at least a 3/4 gal/hr sprayer and a 517 spray tip.

 

[Red05GT]

The last set of self storage buildings we did using concrete block were prepped with
Loxon from Sherwin-Williams. You could even have it tinted if you wanted something
besides white. I bought some block prep filler in 5 gallon buckets from Lowes on close-
out, dirt cheap, but it was worth even less than we paid for it.

 

[gnxtc2]

Some closeup pictures of my wall:

Looks good.

How many coats are applied? Was any primer applied before hand and did you apply a topcoat of paint to it.

Thanks, sorry for all the questions

Billy T.
[email protected]

 

[PAToyota]

Sorry, thought I posted that information after the pictures.

One coat of the block filler tinted to 75% of final color on bare block rolled on with a 3/4" nap roller and then two coats of SUPERPAINT® gloss exterior acrylic latex sprayed on as a topcoat. The block filler is fairly flat, so I wouldn't recommend it as a topcoat as it would collect dirt and such.

 

[brownbagg]

dry loc

 

[pcmeiners]

2100 squ feet, definitely get an professional airless sprayer (as Irishtom suggests 3/4 hp), thin what ever you spray a bit. I have sprayed oil and water base in one coat, equal to at least two coats with a roller. I would say it would take >4x the time to roll it.
Spraying is so fast you will not believe. I would go with 1 spray coat thinned quite a bit, so the block absorbs, then a slightly thinned top coat. Both coats could be finished within a day. Count on over spray especially with petro based media, though nothing like air spraying, cover or remove items, use respirator. With petro based, best to put on a Tyvex coverall.

 

[rickycobra]

Yep. I used Sherwin Williams Industrial and Marine Coatings Heavy Duty Block Filler:
http://protective.sherwin-williams.com/detail.jsp?A=sku-26004:product-6790

Another option is their Prep-Rite Block Filler:
http://www.sherwin-williams.com/pro/products/preprite_block_filler/

Pretty good stuff my neighbor used it on his side of the fence.

 

[PAToyota]

2100 squ feet, definitely get an professional airless sprayer (as Irishtom suggests 3/4 hp), thin what ever you spray a bit.

The Heavy Duty Block Filler doesn't recommend thinning:

Airless Spray
Pressure.........................2000 psi
Hose...............................1/4" - 3/8"
ID Tip ...................................028"
Filter ...............................30 mesh
Reduction.......................not recommended

The Prep-rite Block Filler allows thinning:

Spray - Airless
Pressure..............................2300 psi
Tip .............................................. .028"
Reduction ... as needed up to 1 pt/gal
Remove all in-line and gun filters

But I'd thin as little as possible - the whole point is to have something thick enough that it fills the pores of the block. I'd also somewhat consider rolling the block filler and spraying the top coats. The roller really allows you to lay the stuff on thick and it goes on pretty quickly that way.