LAC: Steel Seal for sealing Head Gaskets?

[David Ullrich]

In the e-mails bouncing back & forth about my possible 1988 Audi 80q BABE
Rally car, Steel Seal was mentioned as a possible remedy to the head gasket
issue (the car blows white smoke). http://www.steelseal.com/eng/home.html
Anyone ever used it or any other oil additive sealants to "fix" a head
gasket? Did it work?  I was thinking of giving it a try for the drive from
Mass back to the team HQ in Baltimore MD. If its still leaking, then a
"proper" head gasket replacement will be in order. Thoughts on this idea,
sealants in general and Steel Seal specifically?

TIA,

Dave
87 CGT 2.3
Portsmouth VA