Can I use tps nutrients silica aka potassium silicate as a foliar in Beginning of flower Ust double checking
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Same as marketed “Rhino Skin”, don’t see why not. SS/BW…mister 
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Where do you buy your silica?
Ive wondered this myself…isnt silica a respiratory hazard?
I was just gonna spray on lower fan leaves but I get my silica on amazon tps nutrients silica also armor si from gh works well to I heard
You know trichromes are silica It is the silica in trichromes that lends leaves and awns the roughness and the toughness that impede the penetration of herbivores and pathogens through the cell walls whatever that means
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Dyna gro protekkt or agsil 16 would be your cheapest and best options for silica.
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A very specific type, size, and composition of silicate i.e. Asbestos not Potassium silicate.
You shouldn’t go around breathing any fine particulate matter if you can avoid it, of course.
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Yeah im usually cautious with that stuff. Though I did hand scrape the paint off my house years ago without a mask. Fortunately it was built in the late 80s about a decade after they banned lead paint and it was with a scraper not a sander. I wonder sometimes the lung damage I caused doing that.
As I get older i get wiser and do less hazardous things. Now i mask up for nearly anything that causes dust.
All our OSHA books at work have silica information. Any coring through concrete has to be done under a vacuum to a cannister with hepa filters on it.
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I use potassium silicate from Growtek as a ph buffer (up) right up to flush.
I know you are asking about foliar application and Im using it as a soil drench, but its still being uptaken by the plant for the same purpose.
You can make your own using crystal cat litter… Just replace the NaOH with KOH.
You would have to dilute the hell out of it.