How to Skim Coat Concrete Walls

skim coat concrete walls

Skim-coating is the process of applying a thin layer of material, such as cement, over a wall to even out the surface. This process is a good way to prepare a cracked and uneven cement wall for painting or other finishing. The procedure implemented to skim-coat a cement wall is straight forward and easy to follow. Skim-coating a cement wall takes some effort but the skill needed can be attained in a just a few minutes of doing it.

Things You'll Need

•    Plastic drop cloths
•    6-inch drywall knife
•    Skim-coat cement mix
•    5-gallon bucket
•    Electric drill
•    Stirring bit
•    Cement trowel

Lay plastic drop drywall knifecloths on the floor to protect it from the skim-coating process. Cover any items such as furniture that will remain in the room during the skim-coating.

Scrape the wall lightly with a 6-inch drywall knife to remove any loose cement or other substances stuck on the wall.

Fill a 5-gallon bucket halfway with water and add skim-coat cement mix. Mix the cement with the water using an electric drill with a stirring bit installed. Continue to mix and add the powder until it is the consistency of thick wallpaper paste.

Start at one end of the wall at the top and work your way down and across the wall's surface. Dip the cement trowel into the bucket of cement and fill the trowel halfway with cement. Spread the cement onto the wall, using the flat side of the trowel to smooth the cement. Remove excess cement using the edge of the trowel in a scraping motion. Apply a thick enough coat to cover the surface with an even coat of cement.

Allow the skim-coat to dry for 24 hours before painting

For a free quotation, please contact Country Wide Walling today.

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2585 Hits

Common Problems with Painting Concrete Walls

Painting concrete walls can result in a few problems if the concrete wall has not cured. If the concrete cannot adequately cure before it is painted, the paint will trap the excess moisture within the concrete and the paint can peel some of the cement as it peels itself. Painting the concrete wall can also cause the plaster to not receive the water cure that it needs.

common problems

Cracks in the Wall

Before priming the wall, cracks in the concrete should be filled with a material that can withstand weather effects. If the wall plaster has a texture, then sealant should be of a matching texture. If it is not, bands of smooth surface can be seen through every coat of paint in a different contrast.

Coverage

If primer and paint is applied, it needs to be applied across the whole surface in order to have the best results. Once the primer has been applied and allowed to cure, the finish coat needs to be laid on in several thick coats. If not, the uniform color will not be attained and you will not achieve the look that is desired. Some projects do not have primer applied before the paint. Other projects may have had paint thinned so much that the coat is not even effective. This makes the wall look like it did not receive adequate coating.

Primer

In order to get the bond desired, the right primer will need to be applied to new concrete walls. This will prevent paint delamination also. There are some paints and primers in particular that needwall painting to be used together. Although cement plaster and concrete should have a coat of primer before the paint is applied, painters do not always prime concrete and plaster.

Delamination

Delamination is the process of paint peeling from a new concrete surface or cement plaster. Paint will delaminate from concrete just as it does from wood and metal. This is why the concrete wall needs to be well prepared and all application procedures need to be followed. Moisture from rain or from the concrete not curing will release from the concrete and cause cleaving.

Over Brushing the Paint

If a painter applies paint to the brown coat on cement plaster, the paint will serve as a bond breaker causing delamination. Plaster behind a coat of paint will turn soft if paint is not allowed to cure. Paint will keep the water from evaporating properly. Concrete walls need to be prepped and primed. Paint needs to be thick and not diluted.

Please contact Country Wide Walling for a free quotation today

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1274 Hits

What Paints Can You Use on Concrete?

paints can use concrete

Though you can use any paint onplaster primer concrete, some kinds prove better suited for certain types of concrete surfaces. Learn which finishes will prove most resilient on concrete floors, statues and walls, or finish failure will prove possible. Learn how to condition the concrete for adhesion, or no type of paint will prove durable in the long run.

Concrete Walls

  • Ordinary latex paint is well-suited for interior concrete walls. Use an eggshell or satin latex paint on concrete walls that aren't exposed to much duress. For concrete walls within weight rooms, work rooms and kids' play rooms, choose a semi-gloss latex paint that will resist stains. If you plan to paint exterior concrete walls and fences, use an exterior acrylic paint that will hold up to ultraviolet light and harsh weather conditions.

Considerations

  • No type of paint will adhere to improperly-prepared concrete. Prime vertical concrete surfaces, or the paint will eventually chip. Use a latex primer on interior walls; use an acrylic primer on exterior walls. Smooth horizontal concrete surfaces do not require a primer; however, they will reject paint unless they are treated with an acid etch.

Contact Country Wide Walling today for a free quotation or more information.

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Precast Concrete Wall Repairs

concrete crackIf your Concrete Wall has developed hairline cracks or small holes, you can and should repair it immediately to avoid the damage growing and causing a weak spot in your security.

Firstly, clean the area around the cracks or small holes using coarse sandpaper. Make sure you remove all dirt and dust from the wall.

Next, you need to soak the area around the small holes or cracks and keep wet for a few hours. Doing this will prevent the dry concrete from absorbing the water from the cement grout once you have applied it.

Mix the cement and water in a metal bucket to form a thick. Smooth grout. You need to stir continuously to prevent any lumps from forming.

Next you need to fill the hairline crack with the cement, using a trowel. You can use the trowel handle tip to pack the grout firmly and fully into the holes. Always press and spread the grout into the crack and over the edges, then smooth the grout down with the flat side of your trowel.

Cover the repaired cracks and holes with large plastic sheet, which you must tape with duct tape.

For 5 days, you need to dampen the repaired cracks or holes with a little water, then cover again. Do this every single day for the 5 days.

You can then apply a silane-based sealant to the repairs and a few cms all around the cracks or holes, to ensure a good, stable seal. Use a synthetic bristle paint brush for this.

Honeycomb in ConcreteMake sure you check your walls regularly for any sign or cracks or holes, then repair immediately to prevent any cracks extending or widening, and holes enlarging.

Security is very important today, and in no way must you allow any cracks or holes to stay unattended, thus giving would-be intruders an easy way into your property.

We, at Country Wide Walling, seriously recommend that you get the professionals to do any mending or replacing on your precast concrete walls, as this will ensure that the repairs will be done professionally and last a very long time.

Should you wish to request a free quotation, or discuss your options with one of our highly trained consultants, please do not hesitate to contact us today.

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Setting Boundaries

surveyingIt is surprising that there are many people who do not know where the precise edges of their property boundaries are.

Sometimes boundaries are lost because the property has changed hands over the years.  You cannot just assume that the boundary is consistent with the existing fences that are surrounding it.

The basis of many disputes between neighbours is the exact location of the boundary of a property, or the perceived belief that a neighbour is encroaching on your property, either knowingly, or unknowingly.

In general the boundary fence belongs to both owners, and if necessary can be checked by a surveyor.

If a new fence needs to be erected, or an old one needs to be repaired, the cost should be split equally between the two neighbours.  Both property owners have a responsibility to keep the fence in good condition, and neither neighbour is allowed to remove the fence without the permission of the other neighbour.

There are some basic rules which apply to boundary fences.  

If you wish to remove or replace an existing wall or fence, it is very important to first consult with the neighbour.  Never attach anything to a fence without consulting with the neighbour.

The same applies if you wish to raise the fence/wall for more security, e.g. attaching lattice to the fencing.

angry neighbourAlways talk to your neighbour about anything pertaining the boundary fence/wall.  Ask for any agreement to be given in writing.

Should your neighbour be difficult and refuse to do their share, it is always best to first seek legal advice.
Talking to your neighbour is the best way, and will prevent any hostilities and unpleasantness.

As we have said before:   Good fences make for good neighbours.

Should you wish to erect a new wall or fence, or raise and existing one, please feel free to contact us and speak to one of our highly trained consultants.  They will be able to advise you on what would be your best option.

Or contact us for a free quotation today.

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426 Hits

Best Service Ever

We had our Concrete Palisade Fencing Erected by Country Wide Walling in July 2015. Although our fence was only 235m long, we were still treated as if we were one of their top clients. Service, efficiency and cleanliness were a priority for me, and Country Wide Walling delivered in all these aspects. If you want the best concrete palisade fencing company in the industry, then Country Wide Walling is the right fencing company for your walling projects.

WE OFFER YOU:
Direct from factory
2 years guarantee
Our own contractors
Free quotes
Prompt services
Clean site on completion
Job satisfaction
CONTACT US:
TEL: 011 743-2222
EMAIL: cwwreception@yahoo.com
ADDRESS: 7th Street,
Witpoort Estate,
Brakpan, Plot 222,
East Rand, Gauteng,
1540