[Dave Willis]

I've pinched a black flock dual trim superlight off a fellow window cleaner. I've had flocked dual trims before but this one has very stiff mono bristles in the middle, far stiffer than my old versions. Have I got a different design in my hand? Was it changed some time ago? and are the stiff black bristles used anywhere else in the range?

Or is it because it's not been used that the shorter bristles feel so stiff?

[Frankybadboy]

why don't you just buy every brush head in the range

be done with it then

[Dave Willis]

I thought I had 

[Alex Gardiner]

I've pinched a black flock dual trim superlight off a fellow window cleaner. I've had flocked dual trims before but this one has very stiff mono bristles in the middle, far stiffer than my old versions. Have I got a different design in my hand? Was it changed some time ago? and are the stiff black bristles used anywhere else in the range?

Or is it because it's not been used that the shorter bristles feel so stiff?

No difference at all - it is exactly the same material. The difference must be that it is a new brush which feels stiffer than your ones which have been used.

[Dave Willis]

Mmmm interesting, I'm sure my flocked dual trims have flocked inners too? Doesn't matter, it feels like a good scrubber if you know what i mean.

[Alex Gardiner]

Mmmm interesting, I'm sure my flocked dual trims have flocked inners too? Doesn't matter, it feels like a good scrubber if you know what i mean.

Your brush may have flocked inner bristles now, but when they were new they would not have looked like this.

To make flocked/flagged bristles an agent is mixed with the bristles material in manufacturing which then allow the bristle end to 'fray' when crushed. The bristles are then cut to length, folded in half and crushed at the tips to make flagged/flocked bristle tips.

The inner shorter non-flocked bristles on the Super-Lite Flocked DT brush are made from the same material as the outer bristle, but just not had the tips crushed. However with a few months of use the tips will start to soften and fray slightly giving a more flocked appearance.