Daz, following on from my previous post, I think, at the moment, all brushes are designed with cold water in mind.
I think what Alex does, is work out which brushes will 'best suit' hot water and recommend those. And fair play to him.
There are so many hot water users now (I would like to be one of them) that there needs to be a brush that can take hot water but still have a suppleness and flexibility about it, with that gentle 'caress' of the glass; basically the scrubbing power without the harshness. Possibly a very difficult 'nut to crack'.
Over to you Alex; a 'hot water' range of brushes!
The reason for having introduced the Stiff version brushes was for hot water use by clients - many clients like the feel of these on the glass with hot water.
By nature when heated the bristle materials become softer. However hot water users use varying temperature water - so what is supple and flexible for one hot water user at 50°C for another user at 30°C may not feel supple or 'caressing' enough.
To cater for this we would have to introduce a range of varying stiffness brushes - perhaps at 30°C, 40°C and 50°C - so the current Stiff versions could be the 50°C brush and then degrees of stiffness down from that to our current medium-mixed versions.
It would be a challenge to accurately address each of these temperature bands without confusing the brush choice even further
Alex, thank you for your reply.
I am sure that if there is anyone 'best placed' to address these issues and meet the challenges, then you are, without doubt, 'the man' to do so.
Happy New Year to you and all your staff.
P.S. To save confusion you could call them:
Hot 30 range
Hot 40 range
Hot 50 range
It seems to be the way the industry is going! SWOT analysis and all that!
You could even sell a device, so window cleaners could accurately tell the temperature of the water at the brush head!
Oh how I love (hate) marketing!