My 81 Puck has lost some of its original underseal so I need to replace it.

I have a couple of questions.

In a couple of places the exposed wood underneath looks like it's started to deteriorate. These areas are relatively small, but I've no idea whether this is something I need to worry about, or whether I can just happily slap some underseal over it...

If undersell is the way forward, what's the best way to remove any further loose flaking sections, and what is the best sealant to use, please?

Here's a link to something I wrote awhile ago, don't get to excited though

De-laminating floor anyone?

as for undersealing the van, well that's a can of worms! Some will say underseal, some will say Hammerite paint, I did ours 2 years ago and my chassis is always classy😁😂 so did'nt need a rub down, it also looks galvinised (but others say it is'nt, although they hav'nt seen mine) so I just painted the exposed woodwork, did it all in a morning, dropped the spare wheel cage off to. I'd do what you think, as I doubt any of us will be 100% right especially as all our vans are in differing states of repair

Thanks guys. :-)

Hi Herby, don't use car underseal on the wooden floor, it will lock in damp, Hymer do use a special preservative spray. Have a word with Jandi caravans. They will advise you what it is and probably supply it for you.....

http://www.eribacaravans.co.uk/

Thank you Poptop320, that's exactly what I need to know…I was unsure about using car underseal, and I've seen conflicting advice, so finding out there's some special Hymer stuff is great.