even if they are mostly silver? like 80%
This is a great deal ...buy this ...as is far better than busting balls making ya own...? (just watch out its for hort use not human use!) 500 ppm is very high?
So you just mix your colloidal silver with water? What are your ratios?10,000 ppm cs isn't real colloidal silver spray. It would have to be a paste or something and that isn't what you want. You only need like 15-20 ppm (up to 50 is ok but there is no need for that concentration sine the plant will respond perfectly without any damage to less). True colloidal silver shouldn't burn your plants at all, and can be sprayed all overt he leaves and everything. It is also supposed to be clear (sometimes amber like apple juice) and should show the beam of a laser if you shine it through while it's in a clear smooth glass.
This is what it is supposed to look like.
I make my own. I use a generator I bought, (really just the same as a homemade one but put together in a plastic box lol). I use 15-35ppm cs. If you need to dilute it, use bottle DISTILLED water. And while making it, use that too. Anything else will cause big unwanted particles that don't work the way they should and they can actually be a health hazard if you decide to use it on yourself (drinking it which I don't recommend anyway since it becomes useless once it hits your stomach.) the premade stuff I bought never worked and wasted like 4 perfectly good auto fem seeds and like 6 months waiting and trying it over and over. Homemade stuff worked first try.