[Mike 108]

Quote from: Alex Gardiner on November 08, 2008, 10:34:07 PM

My favourite brush is the Dual-Trim brush. The purpose of the dual-trim is that it allows the outer bristle to splay more easily to allow the brush to 'work' over the surface of the glass with less effort, but it also has the shorter bristle to stop it splaying completely and to allow tougher scrubbing where occasionally needed.

Brushes are a very personal choice though and different users will always prefer different things.



Alex

During normal use, are the shorter brisles actually doing anything - are they just 'skimming' the glass or not touching the glass at all?

Do you have to 'force' the brush against the glass to gat the shorter bristles to have any scrubbing effect?

What does 'micro-variation' bristles mean?

Thanks, in advance.

Mike

[Alex Gardiner]

Hi Mike,

During normal use the shorter bristles are actually just touching the glass but are not being 'splayed' much. Due to the bristle density and placement it needs very little pressure to achieve full scrubbing power, which is why these brushes save you so much time/effort in use, it's not just down to lighter weight. The advantage of the two different bristle lengths is that it allows more splay with less pressure.

Micro-Variation means that there are small differences in bristle length rather than them being trimmed to exactly the same length, as some brushes are. We have found in testing that this allows more effective cleaning action on the glass. As the brush is moved across the surface of the glass it allows new 'ends' of bristles to come into fresh contact with the glass providing constant scrubbing action with just a simple movement of the brush even under light pressure.