Hologram effect Audi a3

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Hologram effect Audi a3

Postby MalcolmBoyce » Wed Dec 19, 2012 9:09 pm

I had an accident with my car, just a scratch, and took it in for repairs at auto magic. After three times that I weren't satisfied with their pathetic work they said they will polish and wax my car free of charge. Here's my problem, when the sun shines on my car I have zig zag patterns all over her. I believe it's called a hollagran effect. It looks like crap. Can this be fixed. My car is black
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Hologram effect Audi a3

Postby Drift Devil » Wed Dec 19, 2012 11:59 pm

Chat to Lawrence.

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Re: Hologram effect Audi a3

Postby keagz08 » Thu Dec 20, 2012 5:23 am

MalcolmBoyce wrote:I had an accident with my car, just a scratch, and took it in for repairs at auto magic. After three times that I weren't satisfied with their pathetic work they said they will polish and wax my car free of charge. Here's my problem, when the sun shines on my car I have zig zag patterns all over her. I believe it's called a hollagran effect. It looks like crap. Can this be fixed. My car is black


This is usually caused by a combination of cheap products and buffing pads. Can be easily corrected with a quality rotary or dual action buffer and a medium abrasive polish. ;)
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Re: Hologram effect Audi a3

Postby devzo » Thu Dec 20, 2012 5:52 am

Hi bud

Have a read(detailing world forum)...
There are essentially 2 types of holograms,

1) abrasion holograms, often reffered to as buffer trails or machine marring, which are microscopic scratches in the paint caused by micro marring of the surface by a very fine abrasive pad or compound - when viewed in the sun you get a sort of holographic effect, sometimes with the small scratches appearing to move; buffer trails tend to be in circular trails, following the path of the machine. These need to be polished out, typically by machine with a fine finishing compound/pad

2) oil holograms, caused by residues of products (oils, waxes or sealants predominantly) curing at different levels on the surface. These high spots and low spots alter the depth of the surface visually speaking, so the paint can look darker and lighter in different places and reflect light in odd ways. Typically this looks like smearing or blotching. The causes of this is either buffing off a product too early or buffing it off too late. By buffing too early, you inadvertently spread fresh product whilst attempting to clear the panel. If you fail to remove all fresh product and it remains on the surface in a small - perhaps near-invisible amount - then it could overcure or remain 'unlevelled' and lead to hologramming.

To answer your question, yes it can be removed as keagz has mentioned, try a refining polish like meguiars deep crystal2, correction with a hand applicator is possible but will take a little longer. Then top off with a good quality wax.
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Re: Hologram effect Audi a3

Postby MalcolmBoyce » Thu Dec 20, 2012 7:02 am

Awesome thanx for the replies. I have a polisher with a farecla medium mop and farecla g3 liquid compound and meguiars ultimate compound. As well as wax from farecla. But these items I only use on my DIY jobs. But have always been to scared to try this on my own car with the fear of it ending up like it has. And they are definitely abrasion holograms. It seems like the more I wash my car the more visible they become, must be the sealer and wax coming off. Would you advise this type of work to be done by an expert?????
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Re: Hologram effect Audi a3

Postby devzo » Thu Dec 20, 2012 7:46 am

Do you have a dual action polisher? rotary polishers and the likes can cause serious damage in the hands of a novice. The farecla compound and meguiars ultimate compound are a little more abrasive than required. The general rule of thumb is to try the least abrasive application first hence i mentioned the DC Polish.
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Re: Hologram effect Audi a3

Postby MalcolmBoyce » Thu Dec 20, 2012 5:09 pm

No unfortunately I have a rotary polisher but from what I understand is that dual action is the way to go even when it comes to sanding. I understand that you say it is too abrasive, the g3 removes p1500 marks so its self explanatory. Any advise on a spesific dual action polisher, dumb question maybe but could it double up as a sander????
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Re: Hologram effect Audi a3

Postby devzo » Sat Dec 22, 2012 7:28 am

Well I use the meguiars dual action polisher, guys have also been getting good results with shield DA polisher as well. Double up as a sander?!!!
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Re: Hologram effect Audi a3

Postby MalcolmBoyce » Sat Dec 22, 2012 9:52 am

Yes a sander. With sanding pads. Just like you get mops that attach with Velcro you get sanding pads that attach with Velcro. I will have a look in to the meguiars but wasn't able to get hold of it previously.
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Re: Hologram effect Audi a3

Postby devzo » Sat Dec 22, 2012 12:20 pm

Never seen it being used as a sander before bru. If you looking to buy one let me know...
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