Silicone bead size

[cdbe]

What do you think? It's about 7mm each side, or would it look better with trims?

Thanks

 

[Swwils]

What is the distance if it was even both sides?

 

[cdbe]

It's about 5mm, the chunk out is about 4mm so it would be a gobby lump about 9mm thick where the missing bit is.

 

[pcaouolte]

They always look better with trims, silicone yellows and loses adhesion over time.

 

[Swwils]

As long as the gap is not over 10mm you are fine.

Since it's over 5mm gap then place a backer rod in so you can create a seal that's 5mm deep.

Up to you if you want to use a cloaking fillet.

Use the correct silicone. Low modulus neutral cure, which will last longer than a low modulus acetoxy. If you use an acetoxy silicone (smells like vinegar) then the adhesion to uPVC will be comparatively poor.

 

[Notch7]

What do you think? It's about 7mm each side, or would it look better with trims?

Thanks

View attachment 238651

Silicone, then trim - don't silicon as well after trims, just leave the small gaps.

 

[cdbe]

Thanks guys, I think I will trim, I don't feel confident to do such a wide bead over such a long length (window is 2m tall) and it looks a little bit off centre if I pack it over to close the gap a bit.

It's window fitting time for me at the moment, bi-folds next so I'll post a new thread on that subject!