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sikaflex is best.

flex 512 Caravan
Purpose-designed Adhesive and Sealant for Caravans, Motorhomes and Trailers
Order no.: SIKA512	Price: £ 7.49

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lawrence pics

here are some pictures of when I replaced a skylight)

Quote: Originally posted by JTQU on 07/10/2011

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Sikaflex are generally "bonding" adhesives and 512 is one of these. For bonding jobs, ie those requiring structural strength, it is second to none.

Its totally unsuitable for bedding down a caravan skylight if that is the work you intend doing to the skylight.
It will make a great job of both fixing and sealing the skylight but if ever you had cause to remove the skylight it would require cutting off at the bond; very difficult even where the bond can be accessed to get in the likes of a cheese wire, sheer butchery otherwise.

The skylight is made of a plastic prone to UV light degradation and some time in the future it could have to be replaced. Its not a component that would be expected to outlive the caravan, unless the caravan was in its latter years.

Really you need a none setting mastic for this type of task which will be available from your caravan accessory shop. You can break away items fixed with these products and use white spirit to clean off any residue.

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Quote: Originally posted by Rune Caster on 07/10/2011

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Quote: Originally posted by JTQU on 07/10/2011Sikaflex are generally "bonding" adhesives and 512 is one of these. For bonding jobs, ie those requiring structural strength, it is second to none.

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Its totally unsuitable for bedding down a caravan skylight if that is the work you intend doing to the skylight.
It will make a great job of both fixing and sealing the skylight but if ever you had cause to remove the skylight it would require cutting off at the bond; very difficult even where the bond can be accessed to get in the likes of a cheese wire, sheer butchery otherwise.

The skylight is made of a plastic prone to UV light degradation and some time in the future it could have to be replaced. Its not a component that would be expected to outlive the caravan, unless the caravan was in its latter years.

Really you need a none setting mastic for this type of task which will be available from your caravan accessory shop. You can break away items fixed with these products and use white spirit to clean off any residue.

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Sikaflex is a lot easier to get off than this post suggests.

no it isnt!!!



Sikaflex is what the caravan manufacturers use to seal skylights

no it isnt!!!


- not a good idea to use non-setting mastic on a part that relies for it's fixing strength on the sealant

yes it is

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Quote: Originally posted by sheffgrow259 on 07/10/2011

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Quote: Originally posted by Rune Caster on 07/10/2011

Quote: Originally posted by JTQU on 07/10/2011Sikaflex are generally "bonding" adhesives and 512 is one of these. For bonding jobs, ie those requiring structural strength, it is second to none.

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Its totally unsuitable for bedding down a caravan skylight if that is the work you intend doing to the skylight.
It will make a great job of both fixing and sealing the skylight but if ever you had cause to remove the skylight it would require cutting off at the bond; very difficult even where the bond can be accessed to get in the likes of a cheese wire, sheer butchery otherwise.

The skylight is made of a plastic prone to UV light degradation and some time in the future it could have to be replaced. Its not a component that would be expected to outlive the caravan, unless the caravan was in its latter years.

Really you need a none setting mastic for this type of task which will be available from your caravan accessory shop. You can break away items fixed with these products and use white spirit to clean off any residue.

---

Sikaflex is a lot easier to get off than this post suggests.

no it isnt!!!



Sikaflex is what the caravan manufacturers use to seal skylights

no it isnt!!!


- not a good idea to use non-setting mastic on a part that relies for it's fixing strength on the sealant

yes it is

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i agree with what the first poster said with regards a bedding sealant as opposed to sikaflex,
if a part is removable or at any stage in the future may have to come off dont use sikaflex

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Quote: Originally posted by G7ACU on 07/10/2011

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Take a look at this rooflight project from Wizards repair site, probably a useful reference for the intended job.
See here.

Or even this site too which details a re-seal of a bathroom rooflight.

Both projects illustrate the use of mastic tape type sealant.

Post last edited on 07/10/2011 19:26:02

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In that case both are wrong!

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Caravanning is a way of getting a cheap holiday out of an expensive hobby

rune@tabbytha.com

Quote: Originally posted by Rune Caster on 07/10/2011

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Quote: Originally posted by G7ACU on 07/10/2011Take a look at this rooflight project from Wizards repair site, probably a useful reference for the intended job.

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See here.

Or even this site too which details a re-seal of a bathroom rooflight.

Both projects illustrate the use of mastic tape type sealant.

Post last edited on 07/10/2011 19:26:02

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In that case both are wrong!

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Quote: Originally posted by sheffgrow259 on 07/10/2011

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Quote: Originally posted by Rune Caster on 07/10/2011

Quote: Originally posted by G7ACU on 07/10/2011Take a look at this rooflight project from Wizards repair site, probably a useful reference for the intended job.See here.

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Or even this site too which details a re-seal of a bathroom rooflight.

Both projects illustrate the use of mastic tape type sealant.

Post last edited on 07/10/2011 19:26:02

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In that case both are wrong!

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no they are not stop making yourself look daft

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So tell me why amateur caravan repairer must be right in using the incorrect mastic while the professional companies are totally wrong to use sikaflex?

You are obviously a person who knows everything but you don't seem to have ever stripped a caravan - especially the roof lights



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Caravanning is a way of getting a cheap holiday out of an expensive hobby

rune@tabbytha.com

Quote: Originally posted by Rune Caster on 07/10/2011

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Sikaflex is what the caravan manufacturers use to seal skylights - not a good idea to use non-setting mastic on a part that relies for it's fixing strength on the sealant

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