I must admit it's a bit of a gamble. UK Fire/Britannia have slipped further out of the mainstream over the years, primarily because of cost from my experience.
EN3 saw the floodgates open on cheaper European and Far/Middle Eastern product and traditional UK (& US) manufacture was hit hard with UK Fire & Amerex who formerly had stood up well in the trade to TG and Ranpart/Pyrene loosing trade customers left, right & centre.It was a further bitter blow when the largest independent fire protection company FPS finally buckled to the pressure of the conglomerates and UKF saw their biggest general market customer go 'in house' (to Gloria) for extinguisher product.
The acquisition of Firemaster's brand & products seemed a good way to re-enter the market in the retail/motor/leisure sector, but the ubiquitous aerosol extinguisher had taken a hammering by the now affordable availability of gauged refillable extinguishers championed by Guardian, Fire Blitz Firex/Firefly and Kidde's introduction of Gloria kit to the DIY market.
Unless the export/petrochemical market continues to hold up for Britannia , Firemark will be the only remaining mainstream UK extinguisher manufacturer with only a few small specialists in the aerospace & motor-sport markets to keep them company.
There is a couple of applications in my main sector where this 'maintenance free' product would benefit the client if the principle holds up in court, but on the whole it's traditional equipment for me.
Rather than 'innovations' in extinguishers like this I would far rather someone bring Cold Fire to the market here!