Question about Langka chip repair kit.

B

BMW645

New member
Hello. I'm thinking about getting Langka chip repair kit to remove some of the chips that I have on my car.



Now, let me understand this... the idea is to put a blob of touch up paint on top of the chipped surface. You need to put enough so that the plastic card + solvent will level the blob down, so that it's flush with the car surface, right?



Anyways, won't this solvent also ruin my original paint job? It would be nearly impossible for me to keep the solvent touching the blob only.



Can you guys explain? Thanks.
 
nope. it absolutely won't affect your cured, hardened clear coat.

have no worries -- just smear the touch up paint all over the car -- won't matter . You can use the Langka blob remover 2 hours after the touch up paint, or even 5 days after applying the touch up paint -- it will still come off with the blob remover, while not affecting your stock paint.



I suppose there must be a time limit - like after your touch up paint is on for 1 year - where the langka would no longer work, but I don't know what that time limit is.



Just be sure to level the blob within the first week and it will do fine. I do like the Langka stuff -- your only other choice is to wet sand, and I sure don't want to do that - you get so much collateral damage to the paint that way.
 
Bugman said:
nope. it absolutely won't affect your cured, hardened clear coat.

have no worries -- just smear the touch up paint all over the car -- won't matter . You can use the Langka blob remover 2 hours after the touch up paint, or even 5 days after applying the touch up paint -- it will still come off with the blob remover, while not affecting your stock paint.



I suppose there must be a time limit - like after your touch up paint is on for 1 year - where the langka would no longer work, but I don't know what that time limit is.



Just be sure to level the blob within the first week and it will do fine. I do like the Langka stuff -- your only other choice is to wet sand, and I sure don't want to do that - you get so much collateral damage to the paint that way.
Click to expand...





Thanks bugman for the information... now my touch up paint kit comes with a clear coat laquer. How do I use both the color paint and the clear paint?



Do, I put a thin layer of touch up paint that's just a little bit lower than the level stock paint, wait for that to dry, then 'blob' on the clear paint so that it bulges over the surface, then after that, use the langka kit?



Is it necessary to use the clear paint?



thanks
 
BMW645 said:
Thanks bugman for the information... now my touch up paint kit comes with a clear coat laquer. How do I use both the color paint and the clear paint?
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I was wondering the exact same thing......
 
Some colours make touch-ups more obvious, requiring a clearcoat. What colour is your paint? Metallic or solid?



BTW, the reason Langka won't effect your factory paint is because touch-up paint has a different chemical base, and Lagka's solvents only effect that type of paint.
 
I tried it on Sunday; two hours is a little too soon, on a 75* day with no sun and medium humidity. I'd recommend applying the paint first thing in the morning and levelling it after supper.





Tom
 
Alfisti said:
Some colours make touch-ups more obvious, requiring a clearcoat. What colour is your paint? Metallic or solid?



BTW, the reason Langka won't effect your factory paint is because touch-up paint has a different chemical base, and Lagka's solvents only effect that type of paint.
Click to expand...





Thanks for the info.



I have a light metallic blue colored car. So what does that mean? Clearcoat or no?
 
Just a warning - I let my BMW touch-up paint dry for a day, maybe 28 hours, and it was EXTREMELY difficult to level off the blobs and smeared paint with Langka. I worked on some spots for 20 minutes or more using a lot of langka and a lot of pressure and fabric types just trying to get the smeared paint off my car. When I emailed the company and asked, they said that BMW paint dries pretty fast and hard. Well, that would have been some valuable information to have BEFORE I trusted their product to easily remove the touch-up.



Needless to say I sent back my kit for a refund after I labored to get my chips back to their previous unpresentable state. (I have metallic paint and followed their instructions to smear the paint aling the chip/scratch in order to prevent too much flake from rising to the top. )



Buyer beware. It's wetsanding or nothing for me now.
 
BMW645 said:
Thanks for the info.



I have a light metallic blue colored car. So what does that mean? Clearcoat or no?
Click to expand...

The lighter the colour, the less obvious the repair. Having said that, metallics can cause unpredictable results, especially if the the flake is on the opposite end of the colour spectrum to the paint (dark paint/light flake, light paint/dark flake). This is because the flake has a tendancy to rise to the surface of the blob as it dries.



If you have a light blue paint and darker coloured flake, if it rises to the surface the the darker coloured flake will stand out against the lighter background. Does that make sense? :think:



Applying a clearcoat can help disguise the colour difference to some degree but not if its extreme. Following the 'smearing' directions in the Langka directions will help alot. If the flake is silver, for example, it'll blend in much easier and you may not notice it as much.



I'd be tempted to apply a blob to one chip (do the smearing thing) and let it set for an hour or two (or until its not liquid but still a bit soft so it can be removed if need be), and see how it looks. If looks good, Langka it. If it looks lowsy, remove the blob while still soft and remove the surrounding residue with Langka. Try a different approuch.



I didn't know about the BMW paint issue, so take that into consideration when using it. 'Normal' touch-up paint can be allowed to dry for two or three days, even, without any issues.
 
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