Stone chips

Stone chips

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docol

Original Poster:

33 posts

272 months

Monday 11th February 2002
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I know this topic has been discussed before, but has anybody used this Langka stuff for removing the paint blobs after touch up jobs on stone chips. If so, what's it like and where can you buy it? Are there any other products that will do the job? All suggestions welcome. My Chimaera is collecting stone chips at an alarming rate!

pbrettle

3,280 posts

284 months

Monday 11th February 2002
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No dismissing the idea, but I was intending to let mine get bad and have it all done at the same time. Someone like :

www.tvrbodyshop.com/

Will probably do a good job (not used them yet) or maybe a specialist more local. But I am not going to worry at the moment and have it all done in one job lot....

They are prone to chips and you could spend ages doing it.

Cheers,

Paul

richb

51,616 posts

285 months

Monday 11th February 2002
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I have no idea what Langka is but if you just touch in the chips with some paint it keeps the car looking good and from a few feet away you can hardly tell.

MajorClanger

749 posts

271 months

Monday 11th February 2002
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You can buy Langka direct from the states from their website:

www.langka.com

or from Frosts in the UK:

www.frost.co.uk/acatalog/Index_Painting_18.html

I've just ordered some to see how it works. I had searched through Pistonheads and came across some favourable comments so thought it was worth giving it ago. My Dad still reckons using a single haired brush, rubbing down between coats and then polishing gives the best results.... so I get to keep the Langka all by myself!!!!

If I remember, I'll try to post something here when I've got round to working on the stone chips... and the weather is considerably warmer, dryer and less windy (that'll be driving days then... Mmmm, I sense a conflict coming up!)

MC

richb

51,616 posts

285 months

Monday 11th February 2002
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Ummm, be interested to know what you think of it. Rich...

plotloss

67,280 posts

271 months

Monday 11th February 2002
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I am just about to start doing the rash that has appeared on the front of my Chim (4 months old and has about 10 major ones and 30 minor ones - bloody roundabout resurfacing - I wonder how far a council claim would get, hmmmnnnn!). I shall be going the touch up stick route. Do a layer, leave it dry, rub over with a medium weight cutting compound (G5 or G7)and repeat. Do this until the chip is filled and then polish.

I'll let you know how I get on with this.

Matt.

bryanlister

4,516 posts

282 months

Tuesday 12th February 2002
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I have used LANGKA for stone chips with good success. At the end of the day though, when it comes to tackling stone chips - the quality of the result is down to your patience and how many chips you have got to deal with. If the paint is shot to pieces, nothing is better than a front end respray. However, if the paint is in otherwise good order - it is worth touching them in.

LANGKA is a type of rubbing compound supplied with a smooth plastic 'credit card'. After 'blobbing' paint into a stone chip and allowing to dry, some LANGKA is applied to the paint blob. Wrap a soft cloth over the plastic card and rub this over the blob. The LANGKA acts as a gentle solvent on the fresh paint allowing it to be rubbed nice and flat with the surrounding paint - but without affecting the existing paint. This helps to blend the touched in paint flush and leaves a more satisfactory finish. Of course some chips can be bigger than others and may need several bouts of attention to get them good. For microscopic chips, it is probably easier to go for a body coloured wax polish to disguise them.

I have had good results with LANGKA, but cannot absolutely swear that you would not get the same result using another polishing compound - but not as aggressive as T-Cut-that will just take all the new paint away.

MajorClanger

749 posts

271 months

Tuesday 12th February 2002
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quote:

I have used LANGKA for stone chips with good success. At the end of the day though, when it comes to tackling stone chips - the quality of the result is down to your patience and how many chips you have got to deal with. If the paint is shot to pieces, nothing is better than a front end respray. However, if the paint is in otherwise good order - it is worth touching them in.

Any idea how to make good a series of fine parallel scratches on the bonnet. Looks like someone in the past couldn't park and the scratches look like the result of another car's bumper scraping over the nose of the bonnet. They're not very deep and I was wondering between using a rubbing compound or a very fine brush and the Langka.

Does anyone know whether TVR overspray cars with a metallic finish (Moonraker black) with clear lacquer?

MC

bryanlister

4,516 posts

282 months

Tuesday 12th February 2002
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I suppose it is worth a try if the scratches are too deep to polish out with T Cut. My car has pearlescent paint and there is definitely a clear lacquer coat over it. Someone opened a door onto one of the wings leaving their red paint on my green! I got a dealer to polish it out, but they were too enthusiastic and it has taken the clear coat off. It's all smooth and shiny but where it is paint only now looks a lighter colour.

Personally, with scratches, I would:- clean the area gently with T Cut. Wipe over with some white spirit. Get a very clean lint free cloth and dab it in the paint sparingly and then wipe over the scratches to fill them with colour. Wait a minute of two and use a little LANGA across the scratch. Then leave well alone for a couple of days. Again, a couple of attempts may be required to make satisfactory.

>> Edited by bryanlister on Tuesday 12th February 10:47

richb

51,616 posts

285 months

Tuesday 12th February 2002
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So, whatis this Langka stuff, I've lookde at their web site but it doesn't give much away. Is it some kind of compound with cellulose thinner in it? R...

bryanlister

4,516 posts

282 months

Tuesday 12th February 2002
quotequote all
I couldn't tell you exactly what is in it even though I have got some! It looks like a thin creamy white liquid (let's not be rude) - almost like watered down T Cut. I imagine it has got some mild thinners in it too. It is used sparingly, and from my experience - does not affect anything other than the freshly applied touch up paint.

MajorClanger

749 posts

271 months

Monday 18th February 2002
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I tried using Langka this weekend. The results are promising and I'm sure can be improved with repeated applications (of paint/Langka) on those areas I tried. It's definitely easier and quicker than traditional methods of rubbing down.

It works well to remove any excess paint so only the chip is painted, and it polishes up the new paint a treat. The best results were on medium depth/size chips where you could apply a reasonable amount of paint and create a 'blob' above the surrounding paintwork. On shallow scratches/chips I had mixed results as the new paint layer is so thin it's very easy to remove it all with the Langka. I was pleasantly surprised with the results on the fine scuff marks on the nose of the bonnet. Some deep chips will need further painting but I am happy with the results so far. On a black car, I prefer the look of painted in chips rather than the white GRP showing though any day!

It says on the bottle that Langka contains distillates. This would cover anything from white spirits to paraffin. Other than that there are no clues, other than it's not cheap! I might be tempted to experiment later!!

MC

docol

Original Poster:

33 posts

272 months

Monday 18th February 2002
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Sounds as though it's useful stuff. I'll order some and give it a try. Thanks for the comments folks.