I have been told that I should be treating the exterior body seals of my caravan with something called 'over seal'. Does anyone know of a commercial name for over seal and where I can buy. Thanks
Caravan Seals - Over Seal
- Thread starter Michael_5127509
- Start date
Hi, yesterday my caravan was serviced and the 'damp' check showed damp in one small area by the roof / end panel seal. The guy who carried out the service said that caravan panel seal / joints should be regularly treated with what he called 'over seal' but could not recall a commercial name. Would it be OK to use an ordinary silicone sealant or is there a special caravan product,
regards Mike
regards Mike
Damian
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- Mar 14, 2005
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Michael, oversealing is a recognised remedy for reinstsing water tightness, but is not as good as a proper re seal, where the old mastic is totally removed and new applied and the joint remade, which involves rmoving trims etc and with a roof to end panel, lifting the edge of the roof to remove the old mastic
However, with roof to end panels this is a time consuming job and can be very expensive, so to remove any old or damaged sealant, thoroughly clean the affected area and apply an overseal is one way of curing a problem.
There is no reason why , if done properly, a reseal cannot be very long lasting, so "regular treatment" is somewhat out of place.
The best sealants are those specifically made for th ejob, such as Soudall, Sikaflex or IDL, but clear silicone sealant can be used.
Problems can arise with the roof flexing during movement and the effects of heat and cold causing movement by expansion, and silicone can lose its adhesion and allow water to penetrate.
However, with roof to end panels this is a time consuming job and can be very expensive, so to remove any old or damaged sealant, thoroughly clean the affected area and apply an overseal is one way of curing a problem.
There is no reason why , if done properly, a reseal cannot be very long lasting, so "regular treatment" is somewhat out of place.
The best sealants are those specifically made for th ejob, such as Soudall, Sikaflex or IDL, but clear silicone sealant can be used.
Problems can arise with the roof flexing during movement and the effects of heat and cold causing movement by expansion, and silicone can lose its adhesion and allow water to penetrate.
I seem the remember seeing a post from the forums late friend Rob Jax saying that Silicon Sealant is corrosive to alluminium.
Always use Sika products myself
Always use Sika products myself
Hi there
Doug King the Fix it King used none settting mastic when doing the reairs on the Wren caravan February 2007 isse onwards and fitting the Omni- roof vent.
Also Nigel Donnely advice tipes.
Steve & Janet
Doug King the Fix it King used none settting mastic when doing the reairs on the Wren caravan February 2007 isse onwards and fitting the Omni- roof vent.
Also Nigel Donnely advice tipes.
Steve & Janet
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