#BLICK PLASTER PAINTING FREE#

To treat this problem, reference is made in Section 4 of BS 5492: 1990 to the use of bonding treatment on dense concrete backgrounds due to the low porosity, little suction and the absence of a mechanical key on such surfaces.

Plastering in Dense ConcreteĪs the dense concrete has low porosity and smoothness, plastering does not adhere to the surface. In areas where greater thicknesses are likely, it will be necessary to apply the plaster over expanded metal lathing fixed mechanically to the concrete.įig 2: Plastering finish on concrete wall. The thickness of the finish coatĪpplied over the undercoat should be 2mm. Used in conjunction with Thistle Bond-it or other bonding agents should notĮxceed 11mm for walls and 8mm for soffits. After the plastered concrete walls have dried, you can paint them or apply wallpaper. Once the plaster is hard and set, curing must be started and continued till 7 days. Remember the thickness of the top coat should be 5 to 10mm. If the plastering is done in only 1 layer then the thickness of the plaster must be not more than 10 to 15 mm. Apply it in small strokes, making sure it is level and uniform. The layer should be in the range of 10 to 15 mm thick. Apply the PlasterĪ base coat of plaster is applied over the layer of dash with a steel trowel. The prepared plaster must be used within two hours. Mixing of PlasterĪ suitable amount of fine aggregate (sand), cement and water are mixed to obtain a required consistency of plaster for the desired work. Slurry or dash is prepared by mixing 1 part cement to 1 and 1/2 parts coarse sand with the quantity of water sufficient to obtain a runny consistency. To achieve this, a slurry is applied on the concrete surface. The texture of the concrete wall must be rough enough to hold the plaster.

#BLICK PLASTER PAINTING FREE#

Prior to the plastering work, the surface of the concrete to be plastered is to be cleaned from peeling paint, flaking bits of old plaster and should be free from paint, oil, and dust so that the plaster can bond properly. The general steps involved in plastering of concrete surfaces are - 1.

Points to Remember in Plastering Concrete.

Plastering on Lightweight and No-Fines Concrete.

Plastering Procedure on Concrete Surface.

There is probably no paint more capable than shellac to block any stain. Shellac is a material made by beetles and used in both nail varnish and paint The beauty of using shellac-based primers to block a stain is the effectiveness and speed of which the product dries. The fumes may be a little overwhelming and it can’t be healthy for you. Whilst this type of product will work, I wouldn’t advise using it indoors. Some of the old-school decorators I know use pliolite-based masonry paint to block a stain. You can buy coverstain from loads of trade outlets but unless you have a trade account it may be better to purchase it online. Look out for Zinsser CoverStain, or any oil-based undercoat. Just make sure if you are applying it inside over a large area, you keep your work area nice and ventilated. Now we are talking!! These products are the most effective at blocking and covering stains such as grease, water marks, heavy nicotine and graffiti. Note, this product will not block a stain as effectively as some of the products listed below, but if you want longevity in a room susceptible to mold growth then this is the product for you. The other advantage is Zinsser Perma White is durable enough to use on ceilings, walls and woodwork and it can also be tinted. It is the perfect product for a bathroom or kitchen. Again, it will block out mild stains, doubles up as an emulsion and has mold inhibitors, meaning it will combat mould and mildew growth in the future. Just don’t expect miracles, any heavy stains need to be dealt with by something a bit more robust.Īs paint technology is advancing, we now have all these new “all-in-one” products that are really quite impressive.Īnother fine example of this is Zinsser Perma White. This doesn’t mean they don’t have their uses a ceiling which is affected by nicotine from cigarette smoke for example. These are quite simply labeled “stain block” and are by far the easiest option, however, may not be as effective on harder stains such as water-marks. It is often cheaper to buy stain bloks online, so I’ll link to websites I use so you can find what you need.Įach of the main paint manufacturers have their own water-based version of stain block.

I’ll take you through the main paints in this blog, which will help you make the right choice. There are several different stain blocking products on the market which are all good in a different ways, or for blocking and covering up different types of stain.

Blick plaster painting