Rust stain on GRP

[brians]

The mooring chain has started to rust and has caused light rust staining on the white GRP. What is the best product to remove this without resorting to aggressive rubbing compound?

 

[Fenlander]

Just call it patina or character then you can just leave it.

 

[AIDY]

Oxalic acid from your local chemist.... or g6 rubbing compound

 

[rob2]

If you're passing a chandlers, you can use Y10, it's only a proprietary oxalic acid preparation, but readily available. Cheaper to get the basic ingredient from the chemist, though if they'll get it for you.
Rob.

 

[AngusMcDoon]

If you're passing a chandlers, you can use Y10, it's only a proprietary oxalic acid preparation, but readily available. Cheaper to get the basic ingredient from the chemist, though if they'll get it for you.
Rob.

Or Stain Devil for rust. Cheap, and easy to get...Tesco, Asda etc.

 

[[3889]]

Or get this off ebay

http://cgi.ebay.co.uk/200G-Oxalic-A...trkparms=65:12|66:2|39:1|72:1683|293:1|294:50

add it all to make a saturated solution in a small watertight container then top up with water to disolve residue as required. A fraction of the price of Y10 and far stronger. Mix with wall paper paste if you want a gel.

BTW, I spent a good 10 seconds trying to work out how to use hyperlinks on this forum and gave up. Anyone got any hints?

Edit: Oh, I see it does it automatically, how stupid of me.

 

[VicS]

Yes oxalic or any oxalic acid based cleaner such as Y10.

Cillit Bang Lime and Grime may do it to. Worth try if you have some.

Oxalic acid also available from AG Woodcare
and from your local pharmacy if you are lucky.

BUT a waste of time the stains will return if you have rusty chain on the deck. Fact of life!

I do mine if I go to the annual owners Rally. Otherwise dont bother.

 

[markdj]

I have found Magica Rust Remover to be the best for rust with absolutely no effort.

 

[alan_d]

BTW, I spent a good 10 seconds trying to work out how to use hyperlinks on this forum and gave up. Anyone got any hints?

Try HERE for the answer.

 

[sailorman]

The mooring chain has started to rust and has caused light rust staining on the white GRP. What is the best product to remove this without resorting to aggressive rubbing compound?

Teak cleaner will do it as well

 

[magwych]

Doktor Power from Wilkinsons, Robert E Dyas or JML online does the trick too. Also useful for cleaning up stained stainless steel.

 

[pappaecho]

Cillit Bang works well for me

 

[philip_stevens]

The mooring chain has started to rust and has caused light rust staining on the white GRP. What is the best product to remove this without resorting to aggressive rubbing compound?

There is an Australian product from K+H Surface Technologies, (http://www.khst.com.au/index_marine.html) for GRP Cleaning that I bought when I was out there in the MN. It is a gel with 15% hydrochloric acid as an active ingredient.

http://www.khst.com.au/index_marine.html (click the arrow on the right) shows complete list of ingredients.

I have almost finished the bottle I brought back with me, but now use B&Q Patio Cleaner that is 8% hydrochloric acid as a liquid. I put some in an old hand spray bottle, and works a treat. Spray on, scrub it a bit, leave a while and then wash off. Rust gone.

I also use it on the hull to remove river water brown stain.

Ask the Aussies on the forum to have a look at the ingredients.

 

[AndieMac]

Yes agree the K&H Gelcoat Restorer is a great product and does all that you say......... active ingredient hydrochloric acid. When doing a boat's waterline, either on the hard or in the drink, I squeeze the product onto a soft broom/long handled brush like toothpaste, and work my way along, appliying hardly any pressure. Wait 5 minutes, and she is all brilliant white again.

Also use Oxalic Acid, but the hydrochloric seems a little faster to respond. Make sure you use rubber gloves and eye protection and don't get it on your skin!

 

[agurney]

Cillit Bang - spray it on and leave it. The rust will be gone in about an hour.

 

[charliespan]

Rust on GRP

Another vote for Cilit Bang "Grime and Lime". The one in a handy spray in a purple container with orange top if your looking on supermarket shelves