Soudal Sealant Calofer Extreme High Temperature Interior Paste Crack Filler  (290 ml)

After using this product, I conclude that it is probably good for indoor applications. However, I used it outdoors on a chimney flue on the roof, where it is exposed to rain. The product dissolved! Nowhere in the factsheet is mention of curing time, or that it is not suitable for applications where there is exposure to moisture. I even contacted Soudal SA, but they were not very helpful, suggested that starting over and using a primer would fix the problem. In my view, that won't prevent the ...