Hull cleaning ...

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Who loves this chore ? Nearly as good as antifouling ... (not that I've done any of that for a while !!)

Well time came to test a few products of the supermarket shelves ...

Before : (She sat in UK waters for year after year and developed this brown stain along the waterline that crept up the hull over the years ....)

Image002.jpg


So I used non-scratch scouring stuff on stern to remove exhaust stains and various .....

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Then tried my old favourite which does most ... but this was just a bit too much and took a lot of hard work to get this far .... T-Cut ...

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But best by far was the ***** Bang - Lime and Rust Remover ... for bogs and bathrooms ..... here you can see the defdinite line where I stopped cleaning ... the white came up well and also it didn't make the old anti-foul stain when wetted / rubbed as some cleaners do .....

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It still had a reasonable amount of work to rub and clean ... but considering the years of neglect and staining - I'm pretty pleased with the result. L&R remover will now be looking after the rest of the hull cleaning ... and at less than a £1 a bottle ... who can argue ????
 
You're better off using oxalic acid / Y10 before applying elbow grease. Otherwise you are wasting a lot of effort and abrading the gel coat for no reason.

Anyone know the best way of getting the green/brown stuff off? I've always suspected it would scrape off easily if attacked as soon as the boat is lifted. I've never been organised enough to prove this though. I end up removing the worse bits with a pan cleaner /forums/images/graemlins/frown.gif
 
Re: Hull cleaning ... abrading ??

There is no abrading going on apart from the miniscule from T-cut .... but thats now been superceded by Lime and Rust Remover ... which probably is using same Oxalic Acid technology !
But your ........ "Anyone know the best way of getting the green/brown stuff off? I've always suspected it would scrape off easily if attacked as soon as the boat is lifted. I've never been organised enough to prove this though. I end up removing the worse bits with a pan cleaner " I would say is abrading a hull far worse than anything I have used above ....

The one used on ships and paint people for years was Phosphoric Acid to remove rust stains etc. - Same techno really .... mild acid..... as long as Phosi was diluted !

Here in Ventspils, Latvia we do not have any Marine / Yacht Chandlers to buy Y10 or anything like .... so I thought people would appreciate a few pics of Supermarket stuff tried out ....
 
Re: Hull cleaning ... abrading ??

And phosphoric acid is the main ingredient in Barnacle Buster.
Although it still isn't available a lot in the UK.
 
Re: Hull cleaning ... abrading ??

[ QUOTE ]
so I thought people would appreciate a few pics of Supermarket stuff tried out ....

[/ QUOTE ] You bet. I've been using Astonish for the last 2 years, but it is abraisive, so i'm going to give this Cillit a go - thanks for the tip.
 
Re: Hull cleaning ... abrading ??

Contents of product;
http://www.rbeuroinfo.com/


Summary;
....................................................................................................................

"Date Information Posted: 24-04-2006


The list below displays the product ingredients in descending order, with those containing the highest quantities appearing first.


Note: This is the latest formulation present on the market. It may not exactly match the product label. If your require further information or, if the information does not correspond with the product you bought, please contact our Consumer Services hotline found on the back label of your product.


Ingredients:
Aqua
Sulfamic Acid
Phosphoric Acid
C9-11 Pareth-6
Parfum
Colorant "
................................................................................................................

Haven't checked but C9-11 is probably surfactant.
 
Re: Hull cleaning ... abrading ??

Well done Nigel. I do disagree about hull cleaning being the worst job. Actually for me it is one of lifes little joys to attack the brown stain with an acid. Cos it is so rewarding. Yes I use a supermarket product for calcium lime rust cleaning.
However I have used with great success a lemon cut in half. I can actually improve the water line brown stain while in the water by swimming around the water line, lemon in hand. It helps to have someone on board heeling the boat a little to lift the water line a little for a few minutes. Sorry I don't mean to rub it in about water temps. 40 degrees forecast for Sun racing (that is just too hot for sailing) olewill
 
Cilit Bang - Lime and Rust Remover ... it\'s for Bogs and Baths really

Comes in a white bottle with the peculiar bent squirt nozzle ...

It's quite a thickish pale blue liquid ... I just put a dollop on a cloth and wiped on ... left for a little while and then scrubbed with a Vileda Pan sponge that has the hardish scourer bit one side and soft sponge other.

What I really liked ... most other I have tried - including chandlers speciality products ... was that you could cross the anti-fouling edge and not rub AF into the white hull. Any AF that lifted with the L&R stayed on the sponge / cloth.

As to after cleaning ... I have plenty of non-silicon polish to apply after ... one polish I used years ago on my previous boat was Diamond Hard ... they used to advertise that it was like putting a second coat on a car etc. But I can't get it out here ... so went for wipe on, polish off car stuff. Which surprisingly works well.

It's good to see the old girl regain her looks !!

Having washed all halyards as well as Dodgers, Sprayhood etc. etc. - she's gonna be a real Cinderella when she relaunches.
 
[ QUOTE ]
make sure you polish over, otherwise it will loose it's shine and get mucky rapidly

[/ QUOTE ] What product would you recommend for the polishing Dave?
 
Re: Hull cleaning ... abrading ??

[ QUOTE ]
Can't find "Lime and Rust Remover". Nearest is "Lime and Grime Cleaner" ..

http://www.cillitbang.co.uk/sf2_a.shtml

[/ QUOTE ]

We had some of this cleaner in the cupboard (useless stuff according to SWIMBO) so we took it up the boat today. The hull is filthy, so an unfair test?

No (in a Barry Scott voice) " BANG AND THE GRIME IS GONE"

Another bottle is on order for the next Tesco delivery
 
If you are just cleaning off a bit of grim & are not bothered about the finish then sure go ahead with the Cillits et all....but if you want to do a good job on your gelcoat then its not that easy. There are plenty of wax polishes Car T cut etc. but having now got into my third boat in recent years that requires the gelcoat to be brought back, I would ONLY go with 3M products.

look at this its 30 year old gel coat.
Before:
4%20shady%20bfr%20pnt%203.JPG

& after :
81%20new%20paint.JPG


brought back to life with 3M compound, finesse & wax.
Results tell........
Have a look Here for some information on 3M applications.
I will be starting my Dufour this year and will get some pics of the results.
Its hard work, there is no short cut, but as a previous poster said it is very satisfying.

poter
 
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