Is a high quality wax the same as a sealant, or can it be used as one? Not really sure on the use of sealants. Have a rotary not a PC. LIVE in the salt belt here in Iowa. Lots of damaged paint surfaces on vehicles around here. Even the new fire trucks have scratches from the firemen washing them with the tire and wheel brushes. Should a person use a sealant on this type on situation or just use the waxes as they have in the past. On these truckes are also ? water spots, any way to remove that? RANDAL