It has replaced Chemspec Helpmate Coffee Stain Remover and is essentially the same products.
The mixing sprayer obviously means its mixed fresher, less waste and more convenient.
Its proving extremely popular. Thats nearly 12 kits gone in 4 days.
Its convenience more than anything as folks found the mixing stopped them from using it.
That and the fact it shifts Irn-Bru. We have had 2 customers say now they have taken out stains that they have attempted a few times in the past without any luck using Helpmate.
As for the Hydramaster Knockout I am not familiar with the product but sounds like it is similar. DyeGone is Hydrogen Peroxide:Ammonia also. Not sure if there is anything else added. It doesn't show anything else on the data sheet.
Once upon a time we had our Industrial Chemist neighbour try to replicate Helpmate and he couldnt. Claiming it was too advanced. Strange considering its only 2 components of reasonably high concentrations. I believe the original formulation was owned by BASF and licensed out.
http://www.ccwonline.com.au/msds/Hydramaster/HM%20KnockOut%20950-260.pdfAmmonium Hydroxide & Hydrogen Peroxide
http://www.allianceuk.com/files/ww/Chemspec-MSDS/Chemspec_DyeGone_BM261-K.pdf10% Ammonia : 35% Hydrogen Peroxide
From Wikipedia:
Ammonia solution, also known as ammonium hydroxide, ammonia water, ammonical liquor, ammonia liquor, aqua ammonia, aqueous ammonia, or simply ammonia, is a solution of ammonia in water. It can be denoted by the symbols NH3(aq). Although the name ammonium hydroxide suggests a base with composition [NH4+][OH−], it is actually impossible to isolate samples of NH4OH, as these ions do not comprise a significant fraction of the total amount of ammonia except in extremely dilute solutions
The DyeGone product is bottled in the UK as was Helpmate due to the shipping problems with the 2 components. That
may be why the Knockout has a Ammonium Hydroxide rather than Ammonia. I dont know for sure just going on the above info.