Conflicting information - Filling

[HadAGo]

Hello,

I’m about to start some light renovation work which includes filling settlement cracks and gaps in a new build and I’m looking for the correct products for the job.

I’ve watched quite a few videos and read a few threads but still confused as to which filler is best.

I know everyone has their own way of doing things but I just want to make sure that what I’m planning is correct.

I’ve watched a video on repairing: skirting boards, nail pops, hairline cracks and one repairing a windowsill all by the same person. In the videos the guy uses a 2 part filler (Bonda - Decor Fill) except when coming to repair the windowsill gap (which was quite big) instead he back fills with caulk then tops it off with more caulk which I don’t understand as it was the same size gap and material as the skirting board, why not fill it with the 2 part filler to fill the big gap and THEN use the caulk to finish?

Can I use Bonda - Decor Fill for the repairs I need? (I have attached images and numbered them to make it easier to reply starting with the hairline cracks moving to the bigger gaps).

Thanks in advance.

 

[Swwils]

Others will correct if wrong, but generally ive found this YouTubers videos to be very good and covers all your above issues.

https://youtube.com/c/PaintingandDecorating

Also for plastering related ones:
https://youtube.com/channel/UCbZdXox6mKHdcT2QdVT-goQ

 

[Nige F]

2 part filler not needed for any of your cracks - decorators caulk for them all. It goes in nicely and can be smoothed with a finger, wiped off with a damp sponge. The guy you saw was a bit OTT

 

[jacko555]

decorators caulk for them all.

Which is also flexible, and filler isnt.

 

[HadAGo]

Brilliant cheers for the replies.