Block filler is a filler material used under epoxy, alkyd and latex top coats for interior and exterior concrete finishes. It is used in masonry preparation on concrete block and cinder block (poured and precast). It is used before top coats so that the surface assumes a flat, smooth and uniform profile.

What is block filler?

Block filler is a filler material used under epoxy, alkyd and latex top coats for interior and exterior concrete finishes. It is used in masonry preparation on concrete block and cinder block (poured and precast). It is used before top coats so that the surface assumes a flat, smooth and uniform profile.

Do I need to prime block before painting?

Typical exterior house paints will never adhere to masonry surfaces, such as bricks or cinder blocks. Instead, you must begin with a block filler primer. This thick, goopy paint soaks into all the pores and seals them, so that you have a solid, durable surface that your exterior paint can adhere to.

What is concrete block filler?

Concrete block filler, made from resin and acrylic, is used for interior and exterior surfaces, so as to fill concrete blocks, cinderblocks, and precast concrete. This product provides a great base for application of latex, alkyd, enamel or epoxy paints on different types of surfaces.

What kind of paint do you use on cinder blocks?

The prepared cinder blocks should be painted with a thin coat of exterior latex masonry paint or exterior acrylic house paint. The first coat should be completely dried, which usually takes between four and eight hours.

Is block filler the same as primer?

About Block Filler 2X Zinsser Block Filler 2X is a high build acrylic primer for interior and exterior residential, commercial, and industrial applications. It has twice the thickness of ordinary primers to fill pinholes and seal voids in concrete block and masonry, resulting in a smoother and more uniform topcoat.

How long does it take block filler to dry?

If applied by spray, Block Filler must be back rolled or brushed. Where necessary, apply a second coat and allow each coat to dry thoroughly before applying the next coat. Normally dries to touch in one hour at 77°F and 50% relative humidity. Allow four hours before recoating.

Can block filler be used on drywall?

Just pull the label off of a can and ask them to please highlight for you where it says that this product can be used to prime raw Sheetrock. KILZ PRO-X® p50 Block Filler is designed for above grade use on concrete block, cinder block, and poured or precast concrete.

Can you use block filler on brick?

Block Filler 2X provides excellent adhesion on all types of bare or previously painted surfaces, such as concrete, concrete/cinder block, brick, stucco, fiber cement siding, plaster, mortar, concrete masonry units (CMU) and other cementitious surfaces.

What is the best paint for concrete blocks?

Masonry paint (also called elastomeric paint or elastomeric wall coating) is a good choice for concrete painting because it contains binders that contract and expand with the concrete. Exterior house paint can crack and peel on concrete.

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Can you paint concrete blocks?

Paint a thin coat of exterior latex masonry paint or exterior acrylic house paint onto the prepared cinder blocks. Allow the first coat to dry completely, which typically takes between four and eight hours.

What is heavy duty block filler used for?

HEAVY DUTY BLOCK FILLER is an acrylic resin block filler for use on interior and exterior poured and precast concrete, concrete block, and cinder block. Recommended Spreading Rate per coat: (varies with application, surface irregularities, and degree of sealing and filling desired.)

Do you need to prime cinder blocks?

The cinder block wall should also be primed before painting to ensure an even and stronger finish. Most cinder block walls need an exterior paint, but the paint used on a cinder block wall indoors will be different.

How do you make a block house look good?

The simplest way to cover a cinder block wall is by using surface bonding cement to create a concrete finish. Concrete helps insulate the building and keep moisture out. It creates a smooth, finished surface you can leave as is or paint.

Is it OK to paint cinder block walls?

You can paint interior cinder block walls. The key to a successful cinder block paint job is applying proper sealant and primer. Whether the surface is in a basement or above ground, cinder block is as easy to paint as drywall once the surface has been sealed and primed to keep moisture out.

How do you prepare a cinder block for painting?

Interior Preparation New unpainted concrete block walls need to have all dirt and loose mortar removed prior to priming. Painted walls will need all loose and peeling paint removed. Lift off the peeling paint with a stiff putty knife or paint scraper. Then scrub the area with a wire brush.

What kind of primer should I use on concrete?

Acrylic/Latex: Because concrete is porous, a water-based or acrylic primer is more likely to soak into the concrete than an oil-based primer, bonding to the substrate and allowing the paint to grip the surface. These primers will also reduce the dust on interior concrete.

How much does block filler paint weigh?

Weight Solids: 68 ± 2% Weight per Gallon: 13.47 lbs Flash Point: N.A.

How much does block filler cost?

current product Top RatedBest SellerZinsserZinsserZinsser5 gal. Block Filler 2X Primer1 gal. Watertite Flexible Primer and Finish Paint (2-Pack)5 Gal. WaterTite LX Low VOC Mold and Mildew-Proof White Water Based Waterproofing Paint$7507$8009 /case$14699(84)(1)(110)

How is block fill calculated?

To core fill 200mm blocks allow 0.8m3 of concrete per 100 blocks. To core fill 200mm ‘H’ blocks allow 0.84m3 of concrete per 100 blocks. To core fill 300mm blocks allow 1.1m3 of concrete per 100 blocks. To core fill 300mm ‘H’ blocks allow 1.32m3 of concrete per 100 blocks.

What is elastomeric paint used for?

Elastomeric paint is a coating specifically made to protect masonry surfaces. Like other paints, it is applied in liquid form, which then hardens into a flexible, watertight covering. This paint can stretch and return to its original form without causing damage if applied correctly.

How do you paint a CMU?

1. Pressure wash all bare block surfaces until all dirt and efflorescense are removed.
2. Pressure wash painted surface of building and remove as much peeling paint as possible.
3. Use mildew retardant solution if necessary. …
4. Hand scrape painted wall until no more paint will come off.

Can drywall primer be used on concrete walls?

Masonry — Use an epoxy-fortified primer, such as EFF-STOP ® Premium, to promote excellent adhesion and resistance to efflorescence on porous masonry, including stucco, brick or concrete block. Concrete Block — Fill a fresh surface with block filler before painting to ensure a smoother finish.

How do you paint concrete basement blocks?

Paint the cinder block wall with a thick coat of masonry waterproofing paint, pushing paint into cracks and crevices of block. A paint roller or brush made specifically for masonry is best. Allow to dry overnight or for a minimum of 12 hours between coats.

Should you paint cinder block basement walls?

Painting your concrete basement walls not only helps protect your basement against mold, water, bacteria and mildew but also adds to the look of your basement, especially if you use it as a work or rec room. Paint the interior walls of concrete-block basements to protect against moisture.

Do I need to seal breeze blocks before painting?

An exterior bare surface always requires priming before you paint. If a breeze block has been previously painted and the surface is sound, you do not have to do this.

Can you Limewash cinder block?

A true lime whitewash will wash away and wear off easily. Adding glue flakes to the mixture or other additives may improve adhesion. For a truly durable finish, however, choose a whitewash paint formula instead.