Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing Underseal

Could anyone please tell me what exactly is the black underseal that the factory apply to new mogans. No doubt at some time in the future it will need refreshing, and using the same stuff would I guess be best/easiest.

Probably Waxoyl. You have two choices:
1. If you have patience and the inclination, scrape it off and replace with Tectyl ( much better, less sticky and a better product)
2. If you don't, re-apply Waxoyl at regular intervals. ( The car needs to be in warm ambient temperature otherwise the W-oyl will never 'go off')
Whatever you do, do not try to 'patch' the waxoyl with body schutz- it just doesn't work
HTH
G

I've got to speak with them early next week; so, I'll ask for you. However, iirc, G is correct and it is good old standard Waxoyl.

Thanks Both.......

Simon if you could confirm after you have spoken to the factory, that would be great! Thanks again.

It seems much thicker, stickier and more tenacious then the Waxoyl that I'm familiar with, but then I bought 25 litres 20 years ago and I'm still using it ....

I got mine done at Rustbusters - worth the money I think rather than me trying to crawl underneath etc

My apologies for the delay, I now have an answer from the factory.

The product is Dinitrol Black Wax 4941 - I have attached the Technical Data sheet to this post for members to download, should they wish to.

Morgan Motor Company used to use Dinitrol clear wax but it seems the feedback from customers was that they preferred Black Wax and therefore the company moved over to using 4941.

Hope that helps.

Thanks Simon. Thats just what I needed. Very helpful.

Having had a "dirty weekend" the underneath of my 4/4 was very muddy. I decided to jet wash undeneath the wheel arches and got all the mud off but unfortunately the black underseal seems to be flaking/wearing off the wooden board between the wheels and the engine (I assume that is what it is) and also underneath the wheel arch itself.

Do I simply repaint it with the above Dinitrol tackle or is it more involved to the point that I should ask the local dealer to sort it for me?

Also, I know that there is another thread about this but I thought I could kill two birds with one stone. My car was serviced 3/4 months ago by the main dealer and I assume it was greased underneath. I was told however that this needed doing regularly (nipples,suspension etc) and I have done about 800 miles since. Should I have it done again before my Mog hibernates for the winter?

Thanks

Should I have it done again before my Mog hibernates for the winter?

Morgans never hibernate, they just have a little rest in the winter and on a nice day they come out and play.