CheshireDecorator , Feb 3, Yeah good one sam, or gardz will work too. Sounds to me like the emulsion has been applied over a surface that has previously been wallpapered. There is paste residue still on the existing surface which ought to have been thoroughly cleaned down and then a coat of Zinsser Gardz applied.
Gardz seals in the paste residue to help prevent the mud cracking effect. It is not a cure all. As I mention, the paste residue needs to be removed as much as possible prior to Gardz application.
Cheers for your advice everyone - i'm trying to solve an existing problem, the customer tells me the walls were papered beforehand, weirdly though some of the walls were emulsioned white no cracking but the walls that were emulsioned in cream have cracked - makes me think its an matt emulsion over a silk prob. I have sanded it back, some vast majority of "mud" cracks gone - still some tiny little ones here and there, just worried it may happen again after my top coats go on.
Dont think it is paste residue fairly sure it is a matt emulsion over existing sheen issue. Whatever primer you put on it first. Colour Republic , Feb 3, If you've sanded back then surely you know if there was silk on there, as it would come off in slips.
If not, odds on it's badly prepped after stripping, You should line it then you will have no problems. You must rectify the rising damp before painting. Once your wall has dried out and you are ready to re-paint then apply the primer mentioned earlier.
Once the PVA primer has dried apply your paint and you will not see any cracks once you apply your primer and stopped the rising damp. We recommend you to check out the best emulsion paints we use on every job. Cracking paint is a common occurrence because most DIY enthusiasts do not prime their walls before painting.
It seals old and new plastered walls which creates a barrier to avoid your emulsion paint failing. This site uses Akismet to reduce spam. Learn how your comment data is processed. We will use this to provide you with useful information.
In the next month. From months. After 6 months. Living room. Dining room. Childrens room. I am decorating in order to refresh my room style e. I am decorating in order to change my room style e. Blistering and flaking Cause This may be due to any of the following factors: Moisture trapped beneath the surface of the paint film. If the paint is applied over a powdery or friable surface.
Surface contamination such as dirt, oil, and grease. Polish residues on the surface, which impair the adhesion of the paint. Excessive movement of the substrate, such as joints, imposing stress on the paint film which can result in cracking which in turn lets in moisture, ultimately resulting in a flaking paint film.
Resins present in knots causing light coloured paints to discolour or even flake. Resin bleed and flaking is a common problem where dark colours are used on south facing elevations.
This is because dark colours absorb more heat than light colours. Putting it right All loose material will have to be removed back to a firm edge, spot primed with the appropriate Dulux Primer, and then recoated with the appropriate product. Putting it right It is important to seal the original stain by applying a coat of Polycell Stain Stop prior to re-decorating. Cissing Cause This is caused by painting over contaminated surfaces such as wax, oil or polish.
Putting it right Allow the surface to dry and then rub down using 'wet and dry' abrasive paper and a solution of warm water and detergent. Filler shows through the paint Cause Filler shows through the paint. Putting it right Make sure that all filled areas are rubbed down smooth and level. Foaming Cause Using the wrong type of roller can cause foaming of a paint film. Putting it right You will need to rub down using 'wet and dry' abrasive paper using water with a little detergent added.
Mud cracking Cause The most likely cause of mud cracking is applying a thick, heavy, unthinned coat of paint to a textured or embossed surface such as blown vinyl wallpapers or pebbledash. Putting it right One or two thinned coats of paints may fill in the cracks. Powdery or chalky surfaces on outside paint work Cause This is caused usually by a wearing away of the paint film by weathering or could be evidence of salts coming out of the surface.
Putting it right The affected area should be brushed down with a stiff bristle brush to remove as much powdery material as possible before applying a coat of Weathershield Exterior Stabilising Primer. Cracking of plaster Cause This is a common occurrence in new houses and is often the result of plaster drying out or movement of the building.
Putting it right Cracks should be cut out and all dust and debris removed. Mould growth on exterior surfaces Cause Moisture is an essential element for the growth of moulds Putting it right Affected areas should be treated with Weathershield Multi-Surface Fungicidal Wash. Putting it right Allow the paint to dry and harden. Rain spotting Cause Depressions or surface blemishes in the paint film. Putting it right When the surface is thoroughly dry the affected surface will need to be rubbed down using 'wet and dry' abrasive paper.
Yellowing on radiators Cause Conventional solvent based gloss paints discolour due to the effects of heat. Putting it right There are two options to prevent it happening. Grey denatured wood Cause Wood that is exposed to UV light from the sun can become grey and friable.
0コメント