1 tsp of dishwashing detergent 1 cup of water and hand held mixer. Google making foam.
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1 tsp of dishwashing detergent 1 cup of water and hand held mixer. Google making foam.
Have you thought of contacting a supplier (ideally wholesaler / manufacturer) and asking for a sample?
If you are doing some kind of R&D and there is a significant volume potential out the other end... then 200ml won't even be a problem.
Be creative.
I used to know a sales bloke from Nufarm... but he moved on years ago.
I didn't think of this but I did consider the penalty line marking spray referees use in soccer;
How To Use RefereeSpray Vanishing Spray - YouTube
It seems to vanish a bit too quickly