Sealant

[lthoel2]

I need to repair an exterior seal on my Motorhome roof. Can anyone tell if I should use Sikaflex 512 or 522. Thank you.

 

[Obanboy666]

522 is just an updated version of 512 so I would use 522.

Sikaflex®-522

Sikaflex®-522 is a low emission 1-component Silane Terminated Polymer (STP) sealant/adhesive. It has a high weathering and mold resistance. Sikaflex®-522 meets highest EHS standards. It bonds well to a wide range of substrates with minimal pre-treatment.

industry.sika.com

 

[Canalsman]

Probably neither.

These products are a combined adhesive and sealant. Typically they are used to bond an item permanently, such as solar panel brackets, to the roof.

Please define precisely what you are wishing to seal.

 

[lthoel2]

It’s a corner between the roof and the side.

 

[Canalsman]

I would use Sikaflex EBT which is a flexible sealant and adhesive.