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A product that has recently come to promenance in the world of detailing is Detailing Clay. In this thread I aim to write a general guide to what clay is, what its used for and some generic tips for how to get results from clay. :) I will focus on the use of clay for the removal of bonded contaminants.


What Is Detailing Clay??
While clay is growing in popularity with many detailers now, it has certainly not become a well known "household" car detailing product. Detailing clay is a substance that is designed to remove bonded contaminatns from paint, leaving the paint smooth as glass, allowing easier and more fruitful applications of polihses, glazes, sealents and waxes. Detailing Clay is wiped gently across the paint which needs to be lubricated with a lubricant such as a Quick Detailer spray.

Clay, like polishes, comes in levels of aggressiveness - if you are a beginner with clay, do start with a mild clay such as Meguiars Quik Clay, Meguiars Professional Mirror Glaze Clay (mild, the blue bar) or Sonus Green Clay. These mild clays should be enough to remove bonded contaminants from most cars, only step up to a more aggressive clay if absolutely needed.

Clay can be used on paintwork, glass, and wheels. Always use separate clay on each - ie dont first clay your wheels then use the same clay to clay your paint, as all the brake dust embedded in the clay from the wheels will scratch the paint.


What Are Bonded Contaminants??
When you come to wash your car, the paint will be covered in lots of fresh contiaminats such as dust, mud, possibly bird boms and many others. In addition, the paint will also have a growing amount of bonded contaminants attached to it, which accumulate over time:



When you wash your car, the fresh contaminants are removed from the paint and the paintwork looks clean. However, washing will leave behine the bonded contaminats which are attached to the paint as if they had been glued on:



These bonded contaminats are hard to see, so after washing your paintwork looks clean. However, if you gently run your fingers acorss the paintwork you may feel that the paintwork feels rough - a bit like stubble in a way. This roughness, grittiness that you are feeling is the bonded contaminants in the paint.

Examples of bonded contaminants are:

> Brake dust - sharp, so embeds itself in the paint
> Industrial fallout
> Tree sap - very sticky so adheres strongly to the paint

and there are many others as well which you're car is subjected to on a regular basis.


Removing Bonded Contaminants - Clay
In order to remove the bonded contaminats and restore a glassy smooth feel to the paint, detailing clay is used. As well as leaving a pleasingly smooth feel to the paint, when you come to polish, glaze, seal or wax, it means that you are now sealing in remaining bonded contaminants if you have removed them by clay. Simply washing and waxing will not remove bonded contaminants, they will be left behind and then just waxed over.

Clay basically works by grabbing hold of the bonded contaminants and pulling them off of the paint surface:



The contmainats become stuck in the softer clay where they remain. A safety note when using clay here - these bonded contaminats are stuck into the clay and the clay represents a flat surface. Therefore, surface marring can occur if not enough lubricant is used, or the clay is not kneaded regularly enough to a clean side - please see also the section on using clay...

This leaves the paint finish glassy smooth. Clay can remove the bonded contaminants listed above, however some adhesive contaminants such as tar may need a dedicated tar remover as they are very highly adhesive.


Using Clay
Before claying, always wash fresh contaminants off of the car. First and foremost, always follow the manufacturers instruction for the correct use of their detailing clay. What follows here is a generic guide of tips for the safe use of clay which I use from experience of using clay.

To clay your car, you will need a clay bar and an associated lubricant to lubricate the surface and the clay bar - examples of such lubricants are:

> Meguiars Quick Detailer Spray
> Meguiars Last Touch Detailing Spray
> Meguiars #34 Final Inspection
> Clearkote Clay Lubricant
> Pinnacle Poly Clay Lubricant

and there are others that can be used too.

About 40 - 50g of clay is sufficient to clay a moderately sized car. If using Meguiars Quick clay, for example, break off one third to one half of the clay bar (the bigger the car, the more clay you may need).

Roll the clay up into a ball, then out into a sausage shape and finally flatten it out into the palm of your hand. When doing this ensure that the clay is warm and quite soft. It clay gets cold, it can be hard or brittle and this can risk inducing surface marring on the paint. Throughout the claying process, always ensure that the clay remains nice and warm and doesn't go brittle or hard.

Work on small areas at a time, I start with the roof, and then the bonnet, then the top half of the sides, then the boot, then the bottom half of the sides (like washing, do the cleaner areas first). I always spray a panel with quick detailer and wipe off before claying it to remove and rogue dust particles that may have blown onto the paint that may induce marring.

Work on small areas of paintwork at a time - about 2' by 2'. Spray the area with the clay lubricant, enough to wet the surface quite thoroughly. Also spray the clay with lubricant as well. Gently wipe the clay in a fore and aft motion over the lubricated area using only finger light pressure:



Never clay over a dry area of paint, and if the paint begins to dry out before you are happy that the surface contaminants have been removed (paint will feel smooth), spray on more lubricant. Keep the clay lubricated as well. Once the paintwork feels smooth, gently wipe the remaining clay lubricant away using a soft microfibre towel.

Knead the clay very regularly - this not only keeps the clay warm, but when kneading expose a clean side of the clay. Remember that clay is picking up sharp particles, if you do the whole car with one side of clay you will induce surface marring as all the sharp particles stuck in the clay will ineveitably come into contact with the paint. For this reason, knead the clay regularly and only ever use finger light pressure. When a clean side of clay can no longer be revealed, discard the clay.

Continue until the car is completed. Note that many clays will remove some or all (depending on aggressiveness) of the wax/sealent protection, so always follow up claying with polishing and glazing if required, followed by sealing and/or waxing.


Some Notes on Safe Clay Use
Clay is safe to use if used with care. However, if not used with care it can induce surface marring.

Always regularly knead the clay to a clean side.

Always keep both the clay and the paint surface well lubricated.

Use only finger light pressure

If you drop the clay on the ground, discard it as it will pick up tons of dust and grit and dirt from the ground that will inflict damage to paint.

Keep clay warm, and supple - if it gets cold, hard and brittle it will induce marring, so another reason to keep kneading regularly, especially in winter.



And there we have it, a quick generic starters' guide to clay. :)




Thanks to Dave KG on detailingworld for the use of this guide.
 

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i remember seeing them pics on dw and remember thinking a base coat ontop of the colour coat!?
Anyway,good guide andy
it reminds me i need more clay..
 

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good guide/interesting stuff Andy, i'm going to have to give it a try, regarding the detailing spray/ lubricant is this expensive?, i'm assuming you go through quite a lot if doing the whole car and ensuring the panel/clay is always wet/lubed, would it be possible to make some "lubricant" up using some good quality,but well diluted car shampoo?,or is that a no no!(not being a tight git!, just a bad time atm), doug.
 

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its not hugely expensive, but yeh you can use a good quality wax free shampoo diluted so iots still faily strong, maybe 4:1 and use that, just means you have to wash the car afterwards

a 500ml bottle will do 2 average size cars
 

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Best thing to get bugs off is neat petrol or white spirit, sounds a disaster waiting to happen but if you do it carefully then wash it straight off with warm water your laughing....

I once had a cavalier that the paint had turned white, it felt like 80 grit sandpaper, the clay made it look like it had just rolled out of a showroom !
 

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good post!

roughly how long does it take to clay a car? and how much £'s?
£11.95 +P&P from Cleanyourcar.co.uk - Edit, as a forum supporter I don't think you pay P&P.

Guess time depends on how bad your paint is contaminated. Probably best to set aside a day or maybe two, thats to wash, clay, polish, wax, etc.
 

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mgf
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Continue until the car is completed. Note that many clays will remove some or all (depending on aggressiveness) of the wax/sealent protection, so always follow up claying with polishing and glazing if required, followed by sealing and/or waxing.

quote]

I've been a simple wash & wax sort of bloke till now. Whats the difference between waxing, sealing, and glazing?

If I take my wash/wax approach and added one more process, what would provide the best and longest lasting finish?
 

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A product that has recently come to promenance in the world of detailing is Detailing Clay. In this thread I aim to write a general guide to what clay is, what its used for and some generic tips for how to get results from clay. :) I will focus on the use of clay for the removal of bonded contaminants.


What Is Detailing Clay??
While clay is growing in popularity with many detailers now, it has certainly not become a well known "household" car detailing product. Detailing clay is a substance that is designed to remove bonded contaminatns from paint, leaving the paint smooth as glass, allowing easier and more fruitful applications of polihses, glazes, sealents and waxes. Detailing Clay is wiped gently across the paint which needs to be lubricated with a lubricant such as a Quick Detailer spray.

Clay, like polishes, comes in levels of aggressiveness - if you are a beginner with clay, do start with a mild clay such as Meguiars Quik Clay, Meguiars Professional Mirror Glaze Clay (mild, the blue bar) or Sonus Green Clay. These mild clays should be enough to remove bonded contaminants from most cars, only step up to a more aggressive clay if absolutely needed.

Clay can be used on paintwork, glass, and wheels. Always use separate clay on each - ie dont first clay your wheels then use the same clay to clay your paint, as all the brake dust embedded in the clay from the wheels will scratch the paint.


What Are Bonded Contaminants??
When you come to wash your car, the paint will be covered in lots of fresh contiaminats such as dust, mud, possibly bird boms and many others. In addition, the paint will also have a growing amount of bonded contaminants attached to it, which accumulate over time:



When you wash your car, the fresh contaminants are removed from the paint and the paintwork looks clean. However, washing will leave behine the bonded contaminats which are attached to the paint as if they had been glued on:



These bonded contaminats are hard to see, so after washing your paintwork looks clean. However, if you gently run your fingers acorss the paintwork you may feel that the paintwork feels rough - a bit like stubble in a way. This roughness, grittiness that you are feeling is the bonded contaminants in the paint.

Examples of bonded contaminants are:

> Brake dust - sharp, so embeds itself in the paint
> Industrial fallout
> Tree sap - very sticky so adheres strongly to the paint

and there are many others as well which you're car is subjected to on a regular basis.


Removing Bonded Contaminants - Clay
In order to remove the bonded contaminats and restore a glassy smooth feel to the paint, detailing clay is used. As well as leaving a pleasingly smooth feel to the paint, when you come to polish, glaze, seal or wax, it means that you are now sealing in remaining bonded contaminants if you have removed them by clay. Simply washing and waxing will not remove bonded contaminants, they will be left behind and then just waxed over.

Clay basically works by grabbing hold of the bonded contaminants and pulling them off of the paint surface:



The contmainats become stuck in the softer clay where they remain. A safety note when using clay here - these bonded contaminats are stuck into the clay and the clay represents a flat surface. Therefore, surface marring can occur if not enough lubricant is used, or the clay is not kneaded regularly enough to a clean side - please see also the section on using clay...

This leaves the paint finish glassy smooth. Clay can remove the bonded contaminants listed above, however some adhesive contaminants such as tar may need a dedicated tar remover as they are very highly adhesive.


Using Clay
Before claying, always wash fresh contaminants off of the car. First and foremost, always follow the manufacturers instruction for the correct use of their detailing clay. What follows here is a generic guide of tips for the safe use of clay which I use from experience of using clay.

To clay your car, you will need a clay bar and an associated lubricant to lubricate the surface and the clay bar - examples of such lubricants are:

> Meguiars Quick Detailer Spray
> Meguiars Last Touch Detailing Spray
> Meguiars #34 Final Inspection
> Clearkote Clay Lubricant
> Pinnacle Poly Clay Lubricant

and there are others that can be used too.

About 40 - 50g of clay is sufficient to clay a moderately sized car. If using Meguiars Quick clay, for example, break off one third to one half of the clay bar (the bigger the car, the more clay you may need).

Roll the clay up into a ball, then out into a sausage shape and finally flatten it out into the palm of your hand. When doing this ensure that the clay is warm and quite soft. It clay gets cold, it can be hard or brittle and this can risk inducing surface marring on the paint. Throughout the claying process, always ensure that the clay remains nice and warm and doesn't go brittle or hard.

Work on small areas at a time, I start with the roof, and then the bonnet, then the top half of the sides, then the boot, then the bottom half of the sides (like washing, do the cleaner areas first). I always spray a panel with quick detailer and wipe off before claying it to remove and rogue dust particles that may have blown onto the paint that may induce marring.

Work on small areas of paintwork at a time - about 2' by 2'. Spray the area with the clay lubricant, enough to wet the surface quite thoroughly. Also spray the clay with lubricant as well. Gently wipe the clay in a fore and aft motion over the lubricated area using only finger light pressure:



Never clay over a dry area of paint, and if the paint begins to dry out before you are happy that the surface contaminants have been removed (paint will feel smooth), spray on more lubricant. Keep the clay lubricated as well. Once the paintwork feels smooth, gently wipe the remaining clay lubricant away using a soft microfibre towel.

Knead the clay very regularly - this not only keeps the clay warm, but when kneading expose a clean side of the clay. Remember that clay is picking up sharp particles, if you do the whole car with one side of clay you will induce surface marring as all the sharp particles stuck in the clay will ineveitably come into contact with the paint. For this reason, knead the clay regularly and only ever use finger light pressure. When a clean side of clay can no longer be revealed, discard the clay.

Continue until the car is completed. Note that many clays will remove some or all (depending on aggressiveness) of the wax/sealent protection, so always follow up claying with polishing and glazing if required, followed by sealing and/or waxing.


Some Notes on Safe Clay Use
Clay is safe to use if used with care. However, if not used with care it can induce surface marring.

Always regularly knead the clay to a clean side.

Always keep both the clay and the paint surface well lubricated.

Use only finger light pressure

If you drop the clay on the ground, discard it as it will pick up tons of dust and grit and dirt from the ground that will inflict damage to paint.

Keep clay warm, and supple - if it gets cold, hard and brittle it will induce marring, so another reason to keep kneading regularly, especially in winter.



And there we have it, a quick generic starters' guide to clay. :)




Thanks to Dave KG on detailingworld for the use of this guide.
Hiya. Great post..!!!!! I am going to buy some clay, been on the net for a bit of research, then onto ebay.. I am thinking about this particular brand...
Bilt Hamber Autoclay Clay Bar

Does anyone have any thoughts on this.? Your preferences maybe.???? Poppy.
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good post!

roughly how long does it take to clay a car? and how much £'s?

I've spent hours claying cars before now - Longest time was on my old E39 540i Sport - Took me 8 hours to clay it fully.

A good tip when claying is to have the clear palstic wrapper from a cigarette carton (I don't smoke but know someone who does lol) and then use that between your fingers and the paintwork when feeling the "result" of the claying - you'll be surprised at just how much you have missed and will want to do it all again!

The only downside to Claying is that it is an addiction :( The more you do it the harder it is to stop. But the upside to it is that it is very very relaxing too!
 

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Hiya. Great post..!!!!! I am going to buy some clay, been on the net for a bit of research, then onto ebay.. I am thinking about this particular brand...
Bilt Hamber Autoclay Clay Bar

Does anyone have any thoughts on this.? Your preferences maybe.???? Poppy.
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I used Bilt Hamber clay on my car 2 weeks ago. Works really well, and doesn't need any fancy "detailing" sprays, all you need is good ol' mother nature's finest water and a spray bottle as found in any garden centre / Homebase / B&Q etc.

Difference in the paint feel is amazing - sooooo smooth. Pity my paint is so kak really but then my car is 13 years old and in need of a re-paint in some areas.
 

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I used Bilt Hamber clay on my car 2 weeks ago. Works really well, and doesn't need any fancy "detailing" sprays, all you need is good ol' mother nature's finest water and a spray bottle as found in any garden centre / Homebase / B&Q etc.

Difference in the paint feel is amazing - sooooo smooth. Pity my paint is so kak really but then my car is 13 years old and in need of a re-paint in some areas.

Exactly what i use... Just a spray bottle with water and a bit of none wax car shampoo... If you want to spend quids on detailing spray... Not me. lol. Poppy.
 

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Silly question but are there any good ways to get your block warm before you start working with it.

BTW I have seen the French toast scene in Road Trip ;)
 
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