Rollers, Pads and Brushes: Choosing the Right Applicator

Two people can apply the same product to the same wall and get visibly different results, and the applicator is usually the reason. Nap length, bristle type and pad construction are not accessories to the job; they are part of the specification, and a good coating applied with the wrong roller looks like a cheap coating.

Roller nap length

Nap is the pile height of the roller sleeve, and it should match the texture of the surface. Short nap holds less product and lays a smoother film; long nap holds more and reaches into texture.

• 1/4 inch: very smooth surfaces — metal, sealed cabinetry, fine plaster. Leaves almost no stipple.
• 3/8 inch: the general-purpose choice for smooth to lightly textured drywall.
• 1/2 inch: light to medium texture, most ceilings.
• 3/4 inch and above: render, block, heavy texture, rough concrete.

Using a long nap on a smooth wall produces a heavy orange-peel stipple that no amount of extra coats will remove. Using a short nap on texture leaves the low points uncoated, which shows as a speckled pattern once it dries.

Sleeve material

Woven sleeves shed less and lay a smoother film; knitted sleeves hold more product and suit rough surfaces. Microfibre has become the default for water-based products because it carries a lot of material without spattering. Mohair and foam are for gloss and enamel, where any stipple at all is unacceptable.

Whatever the material, a new sleeve should be washed and spun out before its first use. New sleeves shed fibres, and the place those fibres end up is in the finish.

Paint pads

A pad applicator is a flat, short-pile rectangle on a handle. Pads lay an exceptionally even film with no stipple at all, which makes them excellent for smooth walls, doors and cabinet fronts, and they are far better than a roller at working right up to an edge without masking.

Their limits are texture and speed. A pad cannot reach into a textured surface, and it holds less product than a roller, so a large wall takes noticeably longer. The common use is a hybrid: pad the edges and the frame, roller the middle.

Edge pads with small guide wheels are the tool for cutting in against a ceiling if you are not confident with a brush, though they need the guide wheels kept scrupulously clean or they transfer paint onto the surface you were protecting.

Brushes

Synthetic filaments for water-based products, natural bristle for oil-based. Using natural bristle in water-based paint is a classic mistake: the bristles absorb water, swell and go limp within minutes.

Shape matters as much as material. An angled sash brush is the correct tool for cutting in — the angle lets you work to a line with the tip rather than the side. A flat brush is for broad work and for laying off. A round or oval brush holds a great deal of material and suits rough timber and detail work.

Size should match the surface, not the ambition: a four-inch brush on a window frame is slower than a two-inch, because you spend the time correcting.

Loading and laying off

Load a roller by rolling it in the tray until it is evenly covered but not dripping, then apply in a zig-zag and spread it out, finishing with light passes in one direction from top to bottom. Those final light passes — laying off — are what removes the visible roller texture, and they should be done with an almost unloaded roller.

Keep a wet edge. Rolling into an area that has begun to set produces a lap mark that will still be visible after a second coat.

Cleaning, and when not to bother

Water-based products wash out with warm water and a little detergent; spin the sleeve dry and store it wrapped so it does not flatten on one side. Oil-based products require the solvent named on the tin, and the rinsings need disposing of properly rather than down a drain.

For very cheap sleeves used with oil-based products, the honest answer is that the solvent costs more than the sleeve. Buy good sleeves and clean them, or buy cheap sleeves and accept they are consumable — but do not buy a cheap sleeve and try to clean it, because a partially cleaned sleeve sheds into the next job.

A short kit list

• Two sleeve naps — one short, one medium — rather than one compromise.
• An angled sash brush in two inches for cutting in.
• A pad for doors, frames and anything that must be perfectly smooth.
• A spare frame, so a second person can work without waiting.
• A clean bucket for washing out, kept away from the material.

Nap lengths and pad sizes are listed on each product page in rollers and applicators.

Extension poles and reach

A roller frame threaded for an extension pole is worth having even in a room with a normal ceiling height. Working from a pole lets you stand back and use your whole arm, which produces more even pressure and far less shoulder fatigue than reaching overhead from a ladder.

It also removes most of the reason people rush a ceiling. A telescopic pole of four to eight feet covers almost every domestic situation and stores in a corner.

Buying quality where it counts

The general rule is to spend on the brush and the frame and economise on the sleeve. A good angled sash brush will last years with cleaning and makes cutting in noticeably easier; a good frame holds the sleeve straight so it does not wander.

Sleeves are consumable. Buying a multipack of decent mid-range sleeves and treating them as disposable for oil-based work — while properly cleaning the ones used with water-based products — is the arrangement most professional decorators settle on, and it costs less over a year than trying to make one expensive sleeve last.