Ik kwam een interresant stukje tegen over polijstmiddelen en hun vullende eigenschappen.
Klik.
Voor diegene die (eventueel) niet op het forum kunnen, hier de tekst en plaatjes:
===============
I'll post a whole thread on 'true finish vs filled finish' or in other words, the difference between mere enhancement and actual correction, but the sister topic is WIPEDOWNS. Without wiping away glaze oils or residues with filling capabilities, you'll never know the true cut achieved.
This was a thread I originally posted on Detailing World, after I got chatting to Kelly at KDS about the difference strengths of wipedown and how these can conspire with the filling effects of compounds to mask the true finish of the paint.
The popular belief has perhaps been that a wipedown, whether IPA or dedicated wipedown spray, will reveal the truth and remove fillers. The reality is that the strength of the wipedown, the pressure applied and the number of passes all play their part. Some wipedowns can be very effective, others won't be at all. And some products may even increase the filling effect rather than expose it. You simply have to experiment and be open to the possibilities rather than what is pronounced on a forum. For example, sometimes the filling agents can bond better to hotter panels than colder ones, so drop back may occur after a different machining process, even if the wipedown product and technique you use is consistent.
Remember, the filling properties of certain products can be played to your advantage and can make some products your best friend, but they can also catch you out. You just need to know that they can be present and that the wipedown needs to be carefully carried out if you want to reveal the true finish (which may not be necessary, of course, especially if the finished is to be waxed or sealed).
The complete series is here:
[ur=]http://s288.photobucket.com/user/kdskeltec/library/compounds/?start=all]Nog meer foto's[/url]
But I will post up some of the pics to tell the story here.
And big thanks for Kelly at KDS for going to the efforts he has.
OK, we start with some dark, swirly, BMW paint.
This gets machined with a 'silicone-free' medium-heavy cut compound (according to manufacturer info). Being silicone free you may expect it to fill less as silicone oils and resins tend to be very good fillers.
A slightly hologrammed finish is achieved, perhaps to be expected considering the relative aggression of the cut promised by the product, the pad used and the claimed lack of silicone...
This then gets wiped down with a bodyshop final wipe style product.
After a wipedown, this is the result. It looks better - not worse!!! Holy Milwaukee, Batman... what is going on?
In the interests of fashion, erm, science, Kelly then masked off half the panel.
Out with the big guns... no messing with IPA.
You obviously need to be careful with solvents of this strength and volatility, they can soften or damage paint if used incorrectly. Light wipedown with heavy solvents, or heavy wipedown with light solvents is a fair guide.
The result:
And from another angle...
Et voila... the underlying finish of the clearcoat is revealed, clearly visible to the naked eye. You may, of couse, get different results; different machining techniques, working times, clearcoat hardness etc.
But if you get drop back after a 'wipedown' that you thought revealed the true finish, maybe this post will help with the head scratching...
Nog meer foto's
We mogen dus eigenlijk wel concluderen dat een IPA (of vergelijkbaar produkt) gewoonweg niet sterk genoeg is 8-o
Klik.
Voor diegene die (eventueel) niet op het forum kunnen, hier de tekst en plaatjes:
===============
I'll post a whole thread on 'true finish vs filled finish' or in other words, the difference between mere enhancement and actual correction, but the sister topic is WIPEDOWNS. Without wiping away glaze oils or residues with filling capabilities, you'll never know the true cut achieved.
This was a thread I originally posted on Detailing World, after I got chatting to Kelly at KDS about the difference strengths of wipedown and how these can conspire with the filling effects of compounds to mask the true finish of the paint.
The popular belief has perhaps been that a wipedown, whether IPA or dedicated wipedown spray, will reveal the truth and remove fillers. The reality is that the strength of the wipedown, the pressure applied and the number of passes all play their part. Some wipedowns can be very effective, others won't be at all. And some products may even increase the filling effect rather than expose it. You simply have to experiment and be open to the possibilities rather than what is pronounced on a forum. For example, sometimes the filling agents can bond better to hotter panels than colder ones, so drop back may occur after a different machining process, even if the wipedown product and technique you use is consistent.
Remember, the filling properties of certain products can be played to your advantage and can make some products your best friend, but they can also catch you out. You just need to know that they can be present and that the wipedown needs to be carefully carried out if you want to reveal the true finish (which may not be necessary, of course, especially if the finished is to be waxed or sealed).
The complete series is here:
[ur=]http://s288.photobucket.com/user/kdskeltec/library/compounds/?start=all]Nog meer foto's[/url]
But I will post up some of the pics to tell the story here.
And big thanks for Kelly at KDS for going to the efforts he has.
OK, we start with some dark, swirly, BMW paint.
This gets machined with a 'silicone-free' medium-heavy cut compound (according to manufacturer info). Being silicone free you may expect it to fill less as silicone oils and resins tend to be very good fillers.
A slightly hologrammed finish is achieved, perhaps to be expected considering the relative aggression of the cut promised by the product, the pad used and the claimed lack of silicone...
This then gets wiped down with a bodyshop final wipe style product.
After a wipedown, this is the result. It looks better - not worse!!! Holy Milwaukee, Batman... what is going on?
In the interests of fashion, erm, science, Kelly then masked off half the panel.
Out with the big guns... no messing with IPA.
You obviously need to be careful with solvents of this strength and volatility, they can soften or damage paint if used incorrectly. Light wipedown with heavy solvents, or heavy wipedown with light solvents is a fair guide.
The result:
And from another angle...
Et voila... the underlying finish of the clearcoat is revealed, clearly visible to the naked eye. You may, of couse, get different results; different machining techniques, working times, clearcoat hardness etc.
But if you get drop back after a 'wipedown' that you thought revealed the true finish, maybe this post will help with the head scratching...
Nog meer foto's
We mogen dus eigenlijk wel concluderen dat een IPA (of vergelijkbaar produkt) gewoonweg niet sterk genoeg is 8-o
