A single coat of sand, and the hand decides the pattern
Sand-effect paint for living rooms, bedrooms and hallways on the Costa del Sol. It is a paint with a fine grain that goes on in one go, with a mitt or a flat brush, and leaves the wall with the feel and the glint of sand. Here is exactly what it is, how it changes with the tool, what goes wrong if it is rushed and which walls it is worth it on.
Not sure about the finish yet? Look first at the light that wall gets: with this effect, it is half the decision.
What sand-effect paint is
A water-based paint with very fine sand in it. The data sheets we have read describe it as additives, fillers and vinyl resin, in some cases with metallic pigments.
It goes on in a single coat, undiluted, over a wall that has already been painted with a base coat. It is not spread with a trowel or polished: the sand settles into the film according to how the tool is moved, and it is that movement you see on the wall afterwards.
It should not be confused with a decorative plaster, which is a paste and goes on in layers (the best-known example is Venetian plaster), or with masonry paints for facades, which contain coarse aggregate and are made to stand up to the weather.
Same paint, three hands
The tool makes the pattern
Figures of eight
Short-pile mitt
Soft clouds, with no direction you can pick out. Afterwards it is blended with the palm to spread the sand.
Criss-cross
Wide or narrow flat brush
X-shaped strokes you can just make out against the light. The liveliest of the three, and the one that shows most of the hand that applied it.
Combed
Wide flat brush, drawn in one direction
The grain without the pattern: the wall is gone over until the strokes disappear. For anyone who wants the texture but not the movement.
Four ways to ruin a sand effect
It is a quick finish, and that is exactly why it gets ruined by rushing. The four things that most often go wrong are all explained in the product’s own data sheets.
The tin left unstirredThe sand sinks to the bottom while you work
The filler is heavier than the resin and settles in the tin, even during application: that is why the data sheets say to stir it every so often. If nobody does, the first wall comes out with less grain than the last, and the difference shows exactly where they meet.
The wrong base coatUnderneath is a coat that decides how much of the grain shows
Before the effect goes a base coat of paint that prepares the wall and helps the product grip. One of the product’s data sheets puts it like this: with a matt base the effect comes out more pronounced than with a satin one. It is an aesthetic decision, and it is made with the sample in front of you, not with the tin already open.
A wall that has not been skimmedA single coat hides nothing
Sand effect goes on in a single coat and it is thin: it has no body to hide gotelé (the spattered texture found on so many Spanish walls), a crack or a patch. The data sheet calls for a skimming filler on surfaces that are uneven, cracked or covered in gotelé, before the base coat. Skip that and you will see the defect underneath the glint of the sand.
Rushing at the endDrying time, and then the protective coat
The data sheets give a minimum of eight hours’ drying time, depending on the weather. And if a varnish is going on to protect it, one of them asks you to wait at least 24 hours after the last coat. Varnishing sooner means putting the protective coat over paint that has not yet finished drying.
None of them can be fixed with a second coat: the effect is already on. They are fixed by doing it properly the first time.
What to bear in mind before painting with sand effect
Above all, where. This finish rewards you on some walls and is a bad idea on others, and the difference is not a matter of taste but of how that wall is going to be used.
Where it looks its best
The wall behind the headboard, the living-room wall the sofa stands against, the wall that faces you in the hall. Places that are looked at more than they are touched, with a lamp nearby to make the sand glint as evening falls.
Where it does not belong
On the terrace or the porch: of the two data sheets we have read, one declares it “for interior use” and neither gives any guidance for outdoors. Nor on the wall by the shower tray, or in a narrow corridor where hands and rucksacks brush against the walls.
Where it works, but varnished
The children’s room, or a wall in a busy area that cannot be avoided. The data sheets offer a protective coat as an option, in satin or gloss, that makes it tougher and washable. In return it shines more, and that also needs to be seen in the sample.
If what you are after is texture outdoors, on the facade or a garden wall, the thing to look at is exterior paint with aggregate; we explain it on our page about painting the facade.
Before you settle on sand
What is the difference between sand effect and plaster?
What is the difference between sand effect and plaster?
Sand effect is a paint: it goes on in a single coat, with a mitt or a flat brush, over a painted base. A decorative plaster is a paste that is spread by trowel in several layers and worked until it has grain, pores or sheen. Both are decorative, but they are not applied the same way, they do not need the same wall and they do not take the same time.
Can it be used outdoors?
Can it be used outdoors?
Not with the sand-effect paints whose data sheets we have read: one is declared for interior use and the other says nothing about outdoors. To give a facade texture there are exterior paints with aggregate, sold as textured or masonry finishes, which are made to withstand sun, rain and salt.
Does it shine?
Does it shine?
A little, depending on the product: some sand effects contain metallic pigments that glint as the light moves, and others are more matt. If it is varnished on top, it shines more. What is worth doing is looking at the sample in the light that wall will have at night, which is when it changes most.
How long does it take to finish?
How long does it take to finish?
On top of the skimming and the base coat, which have their own drying times, the effect needs at least eight hours according to its data sheets, and if it has a protective coat, one more day before it is varnished. It is not a long job, but it is not done in an afternoon with the room in use either.
Can I choose the colour?
Can I choose the colour?
Yes. The neutral bases are tinted, and some products already come in several shades. Untinted, the one we have read up on dries to a soft cream. Because the grain reflects the light, the same colour looks different from how it would in a smooth paint: decide with the sample on the wall, not from the colour chart.
Show us the wall you want to dress up
One photo of the whole wall and another close up against the light, and tell us what the room is used for. With that we know whether it needs skimming first and which stroke suits it, and the sample is made right there, in the light it will really have.