I detail cars part time, and now I detail the TT as well, I use carpro Hydro2 sealant and Reload sealant spray, the hydro2 you just spray on when the trailer is well and rinse off with a strong stream of water and you are protected for 3 months, reload will last longer, but it has to be applied to a dried surface. both are silica based nano sealants and are very resistant.
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2011 Swift SLX 154bh /2012 Rav4 V6 with airbags & 15k btu transmission cooler.
km counter: 1700
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