OT-SNOW CAP
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Fleet Mechanic
Joined: Apr 2008
Posts: 1,522
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From: HUDSON, FL
OT-SNOW CAP
some of us have had a rust stain in our driveway at one time or another
i found a product called " SNOW CAP" that removes rust stains from
masonry-metal-brick-glass-stucco-driveways-sidewalks-wood-pool decks-vinyl
i have used this on some rust stains in my driveway & it works-i have not tried it on anything else yet-it is a powder that comes in a one pound container
i bought this at a paint store here in florida called " SCOTTS PAINT" i forgot what i paid for it but it was cheap-it says 4spoons make 1 gal i only needed a little so i used 1/2 of a spoon & made 1 pint
i found a product called " SNOW CAP" that removes rust stains from
masonry-metal-brick-glass-stucco-driveways-sidewalks-wood-pool decks-vinyl
i have used this on some rust stains in my driveway & it works-i have not tried it on anything else yet-it is a powder that comes in a one pound container
i bought this at a paint store here in florida called " SCOTTS PAINT" i forgot what i paid for it but it was cheap-it says 4spoons make 1 gal i only needed a little so i used 1/2 of a spoon & made 1 pint
Senior User
Joined: Oct 2011
Posts: 168
Likes: 1
OT-SNOW CAP
Looks like a viable product to be looked at.
You had to make me learn something, didn't you AX? I always thought Caustic (soda) was alkaline, not acid. When I worked in a milk processing plant we washed down with Caustic soda in hot water, and rinsed with acid (citric acid to be specific)
Now I know something more. Thanks Buddy.
Aloha,
You had to make me learn something, didn't you AX? I always thought Caustic (soda) was alkaline, not acid. When I worked in a milk processing plant we washed down with Caustic soda in hot water, and rinsed with acid (citric acid to be specific)
Now I know something more. Thanks Buddy.
Aloha,
Hotshot
Joined: Oct 2004
Posts: 15,882
Likes: 88
From: Durham NC
I use sodium acid sulfate as a mild acid pickling solution to remove soldering flux and oxides in jewelry making. It's marketed to jewelers under the brand name "Sparex". The cheapest place for the average consumer to buy it is in the swimming pool chemical area of big box stores where it is sold to adjust water Ph, where it's called "Ph down". It's very inexpensive there.
Oldebrush,
Caustic soda is a very different chemical: NaOH, than sodium acid sulfate NaHSO4!
Caustic soda is often called Lye or drain cleaner (Draino) and is a VERY caustic (basic) compound in solution, can easily burn the skin. It however does not attack metals except aluminum which makes it safe to use in drains. It works to clean drains by reacting with animal fats to form soap (the way soap was made for centuries) and dissolving organics like hair.
Sodium acid sulfate solution is only mildly acidic (chemically opposite a basic compound) and is very mildly corrosive to metals. Food grade sodium acid sulfate is sometimes used in food as a preservative and as I noted, in swimming pools to adjust the water chemistry. It would work as a driveway cleaner by dissolving iron oxide (rust).
Oldebrush,
Caustic soda is a very different chemical: NaOH, than sodium acid sulfate NaHSO4!
Caustic soda is often called Lye or drain cleaner (Draino) and is a VERY caustic (basic) compound in solution, can easily burn the skin. It however does not attack metals except aluminum which makes it safe to use in drains. It works to clean drains by reacting with animal fats to form soap (the way soap was made for centuries) and dissolving organics like hair.
Sodium acid sulfate solution is only mildly acidic (chemically opposite a basic compound) and is very mildly corrosive to metals. Food grade sodium acid sulfate is sometimes used in food as a preservative and as I noted, in swimming pools to adjust the water chemistry. It would work as a driveway cleaner by dissolving iron oxide (rust).
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