Select paintbrush and roller

 

Paintbrushes:

1. Is there any connection between the type of brush and the type of paint used?

Brushes with natural fibres resist diluents, they are recommended for solvent-based paints and varnishes. On the other hand, they are not recommended for water-based paints because they absorb water, expand and lose their elasticity. Synthetic fibre brushes are better used with water-based paints because they absorb less water than natural fibre brushes.


2. Is a more expensive brush really better than a cheaper one?

A quality brush costs more because it holds more paint, does not lose its bristles, facilitates the application, leaves fewer brush strokes and lasts a long time if it is well maintained. Before choosing a brush, make sure you check the fibre density. The brush fibres must be just as thick at the edges as they are at the centre.
 

3. What is important to consider when choosing a brush?

Five factors are considered when choosing a brush: the type of bristles, the ferrule, the shape, the dimensions and the quality level. The ferrule is the metal collar that holds the bristles on the handle. It should be made of stainless steel.

 

What type of bristles?

Synthetic bristles (nylon or polyester)
  • For water-based products
  • The bristles do not absorb the water contained in the product


Natural bristles
  • For solvent-based products (alkyd, stripper, glue, etc.)
  • Not affected by solvent


 

What shape and dimensions?

Angular
  • Cut in and trim work
  • Tracing of precise lines on walls, moulding, etc.


Straight-edged
  • Large surfaces (doors, floors and exterior walls)
  • Thicker than the angular, holds more paint
 

Round
  • Embossed surfaces (trim, base rails for spindles)
  • Cut in and trim work


Other shapes
  • Short handle: difficult access
  • Very large: floors
  • Pointed: cut in and trim work


What level of quality?
  1. Superior quality
  • Conic bristles offer greater flexibility (fewer brush strokes)
  • The tapered tip allows more precision and uniform application
  • Longer bristles improve loading and release of the paint
  • Better reservoir
  1. Good quality
  • Good compromise between the professional brush and the general use brush
  • Good precision
  • Fast work
  1. Economy
  • To be used when the quality of the result is not important (stripper, glue)

Rollers:

The roller is ideal for covering large flat surfaces. It is made of a frame and a roller cover. A quality roller holds the paint better and provides a smooth and uniform finish.
 
Frame and handle
There are two types of frame: the cage frame with four or five wires and the frame with a unique shank. The handles are made of wood or plastic and are generally threaded to accept an extension pole. 
 
Roller cover
The roller cover is made of synthetic nap rolled around a hollow cylinder. The nap is woven (white or microfiber rollers) or knitted (yellow rollers).
 
  • The woven nap does not lose its fibers and provides a smoother result.
  • The knitted nap provides a textured effect, loses more fibers, contains more paint, but is easier to clean.
  • The length of the roller cover fibers is determined by the surface to be painted and the finish of the coating to be applied.
In general, a 10 mm roller cover is used for walls and a 15 mm roller cover for ceilings.