Which Sikaflex?

[PaulC70]

So, currently the moulding is gaffa taped on, i have some stuff to get the old sealant off and some plastic blade scrapers.

But which Sikaflex to use? 522 seems most common but 221 seems to indicate it stays "permanently elastic" which seems a better option or is there a completely different one thats recommended?

 

[Riverbankannie]

I was just researching this yesterday to redo our rooflight.
I found out that Sikaflex 522 is an updated 521.
The 521/522 is basically same as 221 but developed specifically for motorhomes.
I bought the 522.

 

[M-J]

Following various avenues of advice I only use 522

 

[PaulC70]

Good stuff, that will do me, 522 it is.

 

[Gellyneck]

A lot of Funsters (including us) have used this very successfully and cheaper than Sikaflex.

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