Which sealant?

[Janiemou]

We have an Elddis 'Signature' manufactured with their 'Solid' system .... bit of a misnomer! Some of the trims now have gaps around them - which type of sealant/filler would be best?

 

[berni109]

Post some pics so we can see the extent of the problem. Might be best to remove entirely.
Whatever u use the gap needs to be clean and dry inside.
Non setting mastic gunned into the gap (as used in original construction I assume) might do or a permanent sealer/ adhesive like toolstation puraflex