Rust proofing specialist

[seanmaccann]

Has anyone used a rust proofing specialist (such as the companies below) that’d they’d be happy to recommend?

Thanks

http://www.classicpreservation.net/rustproof.html/
http://www.before-n-after.co.uk/

[bigdavy]

Haven't used them myself but have heard great things about before n after, they seem to do a very good job.

[RW774]

Before and after ,Good guy but you must be prepared to spend the next week cleaning off the excess. Why not do it yourself?