News : Hammerite Underbody Seal Questions

1. McGuire86 Saxperience Post Whore Joined: Mar 2009 Cornwall Posts: 5658 '08 Civic Type R GT FN2

   #1 25th July 2010, 16:43

   Im looking to underseal my car next week using this stuff :
   http://www.halfords.com/webapp/wcs/s...egoryId_165594
   
   Plan is to get the car on axle stands get underneath, scrape any rust off with wire brush, wash over and clean, then paint on the underseal.
   
   Is this stuff any good ? Im reading mixed reviews, some people say its good stuff others say its crap, falls off easily and doesnt really protect.
   
   Also as its highly flamable im having some welding done on the car in a couple weeks, having a new exhaust hanger welded to the car with a metal plate welded on before. This will be at least a week after the underseal has been put on so will it be ok to weld ?
2. 04gallsopp Established Member Joined: Jan 2010 Oswestry Posts: 1130 1.1i Saxo Desire

   #2 25th July 2010, 16:45

   very expesive if you can get your hands on a compresor , get a thing called a shuts gun and undersealer in a gallon can it is the best
   
   this is one , just conencts to compresor
   
3. McGuire86 Saxperience Post Whore Joined: Mar 2009 Cornwall Posts: 5658 '08 Civic Type R GT FN2

   #3 25th July 2010, 16:56

   I'm useing the paint on product as i stated with the link
4. vtrmann Frequent Poster Joined: Dec 2009 E yorkshire Posts: 947 53 black vtr

   #4 25th July 2010, 17:10

   i used some a while back, wire brushed all surface rust off first it was solid, checked under car other day, peeled a bit off and a layer of rust came off with it. so gonna get some rust remover on it first rust primer stuff paint maybe then underseal. saxos just seem to wanna rot, underbody anyway.
5. McGuire86 Saxperience Post Whore Joined: Mar 2009 Cornwall Posts: 5658 '08 Civic Type R GT FN2

   #5 25th July 2010, 17:13

   did you use the stuff in the link ?
   how long ago did you do it ?
6. vtrmann Frequent Poster Joined: Dec 2009 E yorkshire Posts: 947 53 black vtr

   #6 25th July 2010, 17:27

   Quote:

   Originally Posted by McGuire86 did you use the stuff in the link ? how long ago did you do it ?

   yea used same stuff. did it about 3 month ago. i should of bought some rust remover first tho and rust primer. gonna redo it, dont want my car in a scrap yard in a few year. all the salt they put on roads dont help.
7. McGuire86 Saxperience Post Whore Joined: Mar 2009 Cornwall Posts: 5658 '08 Civic Type R GT FN2

   #7 25th July 2010, 17:35

   3 months is that it ? it says you can apply to rust surfaces though ?
   fuck that then ill look for something else
8. vtrmann Frequent Poster Joined: Dec 2009 E yorkshire Posts: 947 53 black vtr

   #8 25th July 2010, 17:43

   think ya need to kill the rust first prob work fine if treated it first. think it might have trapped in some moister.
9. AdamH Saxperience Forum Bum Joined: Oct 2004 South Posts: 3638

   #9 25th July 2010, 17:44

   not bad stuff if done correctly. you can paint direct to rust as long as theres no way moisture or water can get in the rust wont grow... but tbh kill it first with kurust
10. McGuire86 Saxperience Post Whore Joined: Mar 2009 Cornwall Posts: 5658 '08 Civic Type R GT FN2

    #10 25th July 2010, 18:10

    can you just sand the rust off first ?
11. AdamH Saxperience Forum Bum Joined: Oct 2004 South Posts: 3638

    #11 25th July 2010, 18:22

    wire brush if your doing it that way... just be careful...
12. Lewis Saxperience Forum Bum Joined: Oct 2009 Middlesbrough/Coventry Posts: 3808 Megane 225

    #12 25th July 2010, 18:28

    Ive just started doing my civic with this stuff. It wierd and it takes ages to paint on but it seems to work. Havnt got any long term advice but i payed £5 so im not complaining
13. McGuire86 Saxperience Post Whore Joined: Mar 2009 Cornwall Posts: 5658 '08 Civic Type R GT FN2

    #13 25th July 2010, 18:28

    So wire brush it clean and apply a good coat of that stuff and it should last a good while ?
    
    Also, as its highly flamable, would a week + be long enough to wait before getting some welding done ?
14. KrisB Saxperience Forum Bum Joined: Aug 2009 Dorking,Surrey,M25 J9 Posts: 2616 Static -80mm Peugeot 405

    #14 25th July 2010, 18:31

    Sack off the idea off the brush on stuff. It's a pain in the arse.
    
    I've just done my car with the spray on stuff.
    
    
    
    
    
    

    1 user thanked this post: McGuire86
15. Lewis Saxperience Forum Bum Joined: Oct 2009 Middlesbrough/Coventry Posts: 3808 Megane 225

    #15 25th July 2010, 18:32

    The liquid in the paint is flamable so after it dries it shouldnt ignite. Wire brush, 40 grit sand paper, dry brush in that order to prepare the surface. Then just paint on over everything non mechanical or electrical. Its hammerite so it should last years if done correctly

    1 user thanked this post: McGuire86
16. McGuire86 Saxperience Post Whore Joined: Mar 2009 Cornwall Posts: 5658 '08 Civic Type R GT FN2

    #16 25th July 2010, 18:37

    Yeah the paint on stuff will be harder than a simple spary but i dont have a spary gun, so the paint on method is cheaper, im not too fussed about extra work.
    
    Can you not paint it over mechanical parts such as wishbones, axles etc ?
17. KrisB Saxperience Forum Bum Joined: Aug 2009 Dorking,Surrey,M25 J9 Posts: 2616 Static -80mm Peugeot 405

    #17 25th July 2010, 19:25

    Schutz guns only cost about £15
18. McGuire86 Saxperience Post Whore Joined: Mar 2009 Cornwall Posts: 5658 '08 Civic Type R GT FN2

    #18 25th July 2010, 21:44

    So can you apply it to the mechanical parts such as the wishbones, axles, suspension arms etc ??
19. Lewis Saxperience Forum Bum Joined: Oct 2009 Middlesbrough/Coventry Posts: 3808 Megane 225

    #19 25th July 2010, 22:06

    As long as it isnt on the bushes or greased up parts, springs, exaust ect it should be fine. When you have a good look under the car you will see straight away the kind of areas which are just shouting out to be painted.

    1 user thanked this post: McGuire86