Do I need to prime Sikaflex?

[MarkyR]

Hi, I have used Sikaflex on my wooden boat and would like to know if I need to prime/undercoat it before painting over with a gloss paint. I have sanded it down to smooth the edges off.
I think it is Sikaflex 291 sealer/adhesive.

 

[OGITD]

I have worked in the marine environment since 77, and I have never come across any surface or compound that did not need to be primed, sealed or at least keyed before painting.
Sorry I can’t be more specific, but I am looking forward to any answers provided by other members.

 

[MarkyR]

I understand that it is paintable. I was wondering if a sand over with medium grit paper would be enough.

 

[VicS]

Check the website www.sika.com/cmi-marine-index.htm but it's not the world's easiest website to navigate.

 

[boatmike]

Yes. It takes most types of paint but usually you paint over the surface skin it forms. As you have sanded it it may need a couple of coats to seal the surface or it will look matt finish.