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Holly Hill, SC | During covid when I couldn't find a yellow poly saddle tank for my planter tractor, I used MasterSeal NP1 to caulk the small cracks I had midway up the tank. Sand it, clean with acetone and apply caulk to both sides. (had to use a stick with caulk on the end to apply to the inside). This held for 2 years with a fertilizer blend of 25s and 10-34-0. Should be perfectly fine with water. Not so great with herbicides. Caulk drys very slow, give it a few days. | |
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Poly tank repair
