my pontoon was in a fresh water lake all summer and has a crust on the back of the pontoons that were in the water. I have tried clr to remo
I have tried to remove the crust with CLR with out success. Does any one have any suggestions how to clean this crust off the toons? Thanks
Calcium deposits can often be removed with white vinegar ( aka, "acetic acid") Soak some rags in vingegar and apply to the tubes, securing with line. After 30 minutes, splash on more vinegar and let it set another 1/2 hour. This is a home-brew remedy that sometimes works...and sometimes doesnt.
In the future, consider making it a point to go overboard and scrub your tubes twice a month during boating season.
I use a product called ZING formula iv. I get it at my area boat marine store. you dilute with water and I apply with a garden sprayer,let soak a couple min. do an area 3to4'.power wash off. then continue another area. it costs about 11.00 to do my 22' pontoon. Zing Ahead Products .
Do a web search (Zing formula iv aluminum cleaner) it will describe and list suppliers for you.P.S. you love it.
Zing seems to be a mixture of acid and ammonia. Here's an excerpt from teh Material Safety Data Sheet for the product:
-- SECTION 03 - HAZARDOUS COMPONENTS --
CHEMICAL NAME CAS # % Range OSHA PEL ACGIH TLV
1,2,3-propanetricarboxylic acid, ammonium salt 7632-50-0 20-30 Not Listed Not Listed
2-Butoxyethanol 111-76-2 <10 121 mg/m3 TWA 121 mg/m3 TWA
(25 ppm) (25 ppm)
2-Propanol 67-63-0 <10 400 ppm TWA 400 ppm TWA
500 ppm STEL 500 ppm STEL
Inert and/or non-hazardous components -------- ~60-70 ------------ ------------
*Component hazardous according to OSHA Hazard Communication Standard (29 CFR 1910.1200) or one or more state Right-To-Know lists.