Stu I have used water base protectors for years on my caravan awnings with No problems.
Its far cheaper to use than the weather proofing supplied by camping stores and in my opion last just as long.
Resoiling all I can say is Bar Humbug.
I'm off to Manchester on Saturday to collect my new trailer tent and stand and listen to the sales guy quite facts and figures about their super dooper water proof coating only to reply "its O.K chap i've got me own Ta.
