Painting without roller marks and brush marks

Most ready-made paints are made for some average conditions that are not usually present on the day you choose to do your painting! The result is that the paint does not come out well enough to leave a smooth finish and you end up with ugly roller marks or brush marks or streaks or lap marks.

Generally paint is made based on what the average room temperature or outdoor temperature will be for the market in which the paint is sold. The problem is, whenever there is a temperature fluctuation, either up or down, it is more difficult to paint or roll on the wall. When temperatures are warmer than average, indoor water-based paints, emulsions or latexes dry out very quickly, and the result is that there may be stripes in each new painted part as the previous piece dries out very quickly. Is

Painters / decorators describe this phenomenon as ‘losing the wet edge’. Painting the ceiling can be especially difficult as the warm air from the whole room reaches the ceiling which makes the drying problem much faster. If you are applying water based paint / masonry paint on exterior plastered or similar walls and the weather is dry or dry air or worse, if the sun is shining directly on the wall while you are painting … Really hard work because those weather conditions mean that as soon as you apply the roller filled with paint, you will lose that ‘wet edge’.

For exterior wall painting, etc., it is best to choose a day that is neither too hot nor too cold. If you are applying oil based paints or varnishes, especially on a good day, you will find that your paint gets too heavy and brushes. This will make the painting process more tiring. This is because the solvent in the paint evaporates rapidly in hot conditions and it will be necessary to dilute the paint a little to make it easier to apply.

To make your paint or varnish flow, one historically adds some water to the water based paint and some water to the oil based paint. This generally improves the flow of paint. Thinning the paint in this way has some negative consequences, however, for example … the paint loses some of its ‘hiding power’ when using ‘weak hiding’ color paints (yellow, red etc.) Time can be a hassle as you may need to apply extra coat to get the finish and prevent the back colors etc.

With gloss and other oil based paints, etc., thinning in this way will create a good flow but it will lose the power of concealment and will lose a lot of shine after a while. Another option would be to use a paint additive that is designed to improve and cover your paint in less than ideal conditions. You can get paint additives (sometimes called paint conditioners) for emulsion and oil based paints. Paint Store. The water-based additive (conditioner) is ideal for any color of paint but will not be suitable for water-based varnishes due to its milky appearance. However, it does not change color or finish.

Water-based paint additives are designed to keep wet edges open and generally enable you to finish without brush marks or streaks. In fact some water based paint additives actually help to hide the power in a dramatic way, especially in weak colors like red, yellow etc. where you can save some coat and a lot of effort. Oil-based paint additives will work well in any oil-based paint and varnish. Check your paint to see if the cleaning is with white spirit etc and if so it means it is oil based and suitable for that paint.

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