I may need to reseal the awning rails on our Abbey Aventura 315.
It is a 2002 model, a repairer has said that at about this time the manufacturers probably attached the rails with a hard setting adhesive rather than a mastic and that it may be difficult or impossible to remove the rails undamaged.
Has anyone come across this and if so how do you overcome the problem?
Some may be bonded with Sikaflex or an equivalent, but if yours are they shouldn't be leaking.
According to an AWS approved mobile repairer I was talking to, the way to get these off is with either a very thin blade, or a cheesewire type of thing used to cut the stuff without distorting the rails - then you have to get it off the rails and the 'van!
It might be easier to seal any small holes in this type of sealant with "Creeping Crack Cure" then overseal with Sikaflex.
Thanks, I'm not yet sure if the problem we have (damp floor) does relate to the rails but if I do need to reseal the rails is there any way of telling if they are bonded before trying to take them off?!
The only way I can think of is to take an old credit card edge on and see if you can push it into the sealant. Sikaflex etc are too resilient for you to be able to do this whereas ordinary mastic will let you push the card edge into the gap. Ordinary sealant is dissolved by white spirit, so you could try rubbing a small area to see what happens. Sikaflex is inert and won't be affected.
Are you sure its not the battery box or loo cassette surround leaking? Is the 'van wet from rail to floor?
The van has a rear bathroom layout. The problem is the offside rear, from the rear corner forward probably as far as the wheel arch (difficult to tell as it runs behind the kitchen units). It is most obvious around the loo but that has been resealed.
The walls of the van are dry apart from a few inches at the bottom where they contact the damp floor.
The loo is in the offside rear corner and the problem is worst in that corner. I thought water may be coming in at that corner.
This all came to light after we had an internal water leak about 18 months ago when a joint on a water pipe failed. This leak was spotted and repaired very quickly but the flooring did not dry out and it was only when we lifted carpet to investigate that we found signs of the damp floor which I don't think is related to the pipe leakage.
Van has been to a repairer but they were unable to identify cause of problem with floor.
I'm just trying to eliminate as many possibilities as I can!
It is very good at finding and sealing minor leaks. If you run some on a good seam it will just run along and drip off somewhere. If it vanishes, you have a leak. Apply every 20 min. until it stops penetrating. Leak fixed. If you can't stop it with this you will have to take the fitting off - but at least you will know where your leak is.
I had a problem similar to yours, the problem was the door where the you take the cassette out to empty, the problem with mine was the actual door at the top was slightly bowed letting the rain water in, i had a new door and frame and it still did not cure it, so what i did was cut a small piece of rubber and stuck it above the orignal rubber suround this cured it, just try pouring some water on top of the toilet door with the cassette out and see if it leaks onto the plastic floor where the cassette sits,
If your rails are stuck on with sikaflex then you will have to cut though the sikaflex to get them off. The repairers I know who do this use a piece of cheese wire and slowly ut surely start at one nd and go through to the other. Do not let anyone tell you than if your rails are fastened ith sikaflex they will it be leaking there, thry are just as prone to leaking as other sealants, if they were not we old never hear of leaking caravans as every manufacturer would use that sealant.
------------- Bill
For a licence dated 1997 or later you must add together the plated max weight of the caravan and trailer, if the total is 3500 or less you can tow it. You may even tow a caravan with a MAM greater than the cars unladen mass the restriction was removed in 2013
maybe a mile off but check there is no water getting in at the well of wheel arch they have known to crack and most are not sealed after time.have read of cheese wire being used to cut sealer when removing rails.
------------- the only silly question is the one you do not ask.
Quote: Originally posted by janus on 21/7/2012
If your rails are stuck on with sikaflex then you will have to cut though the sikaflex to get them off. The repairers I know who do this use a piece of cheese wire and slowly ut surely start at one nd and go through to the other. Do not let anyone tell you than if your rails are fastened ith sikaflex they will it be leaking there, thry are just as prone to leaking as other sealants, if they were not we old never hear of leaking caravans as every manufacturer would use that sealant.
If a bond is made correctly with Sikaflex it won't leak. If the areas to be joined are not cleaned and degreased properly or the sealant is missed from sections of the join the bond will fail. User error will always be with us.
The keel bolts on our yacht were put in with Sikaflex 16 years ago and are under a bit more water pressure than an awning rail. Never leaked a drop, and every time the boat tacks the 3/4 ton load shifts from one side to the other wringing the join. Sikaflex is the best sealant I have used in 37 years of boat maintenance. Its not the cheapest though.
Quote: Originally posted by janus on 21/7/2012If your rails are stuck on with sikaflex then you will have to cut though the sikaflex to get them off. The repairers I know who do this use a piece of cheese wire and slowly ut surely start at one nd and go through to the other. Do not let anyone tell you than if your rails are fastened ith sikaflex they will it be leaking there, thry are just as prone to leaking as other sealants, if they were not we old never hear of leaking caravans as every manufacturer would use that sealant.
If a bond is made correctly with Sikaflex it won't leak. If the areas to be joined are not cleaned and degreased properly or the sealant is missed from sections of the join the bond will fail. User error will always be with us.
The keel bolts on our yacht were put in with Sikaflex 16 years ago and are under a bit more water pressure than an awning rail. Never leaked a drop, and every time the boat tacks the 3/4 ton load shifts from one side to the other wringing the join. Sikaflex is the best sealant I have used in 37 years of boat maintenance. Its not the cheapest though.
So we agree that just because a seal is made with ikaflex that it does not guarantee the joint is waterproof. The number of caravans that were put together using sikaflex and leak is testament to that. As you say in a perfect world ithe joints would be correctly bonded, but a surprisingly agre number are not correctly made.
------------- Bill
For a licence dated 1997 or later you must add together the plated max weight of the caravan and trailer, if the total is 3500 or less you can tow it. You may even tow a caravan with a MAM greater than the cars unladen mass the restriction was removed in 2013