Pajero Owners Club of South Africa

Hi,

I am looking for suggestions on adding some stone protection / rubberising to my Paj, have noticed that with some of the dirt road driving that the stone protection under the mudguards / wheel arches is starting to wear. What is the best stuf to use for this?

Thanks

Hi.

I can suggest a product called "Stone Chip". It is extremely strong and also flexible and the price ok. I normally buy it at Midas. Just one thing, you need a special spray gun to spray it on. Gun was +- R120 a year ago also at midas. The gun screw onto the 1L bottles. You get black,gray and white. Once dried you can paint over it. I did my front bumper and roofrack with Black and black 2K Paint and the whole inside of the Cab with grey( under carpets to seal it against dust and also water ). The only thing I am not 100% sure of is if it will stick 100% on plastic. I have sprayed it on a plastic weather station some time ago and it is still 100%.

Hope it helps.

Hi David,

There is a thread on Rubberising on 4x4Forum. No definitive answers but it may help with some ideas: Rubberising

I also found this on the web: HP Stone Chip. If it any good then it could be a handy option because you can apply by spray, brush or roller.

Does anyone have experience with HP Stone Chip?

This is the stuff I was talking about. About R35 per liter(if I remember correctly)



And here is a close up of the surface. The hole is a 6mm hole for scale.

Thanks a mil Ernie and Andrew, that was just what I was looking or, much appreciated.

The Manufacturers apply a PVC based coating, or as generally referred to as "Stone Chip" or "Rubbarising". These terms have come to be used for various products, and I assure you, there are a lot of options. The basic products can be divided into two basic categories, namely water-based or solvent-based. The common or garden "Stone Chip" is just a very thick PVA or Acrylic paint with a few additives to prevent mud-cracking due to elevated film build, generally around 0.75mm - 1mm thick. These waterbased products generally are OK, but not the best solution to the problem. They were originally designed to offer under-paint protection on door sills and valances.
Unfortunately the water-based versions tend to retain moisture if not properly cured and can cause rust to form under them. They also shrink for a long time, thus causing a lovely crackle finish. I dont like them much, but if a strong re-inforced coating is required, Plascon has Bakkieline, a very hard wearing product that gives a similar finish but with superior hardness. As with all waterbased products, a good coat of 1K self-etch primer is the way to start.
The solvent-borne PVC under-body protection products are by far the better option, although quite a bit more expensive. Not always easy to get hold of and not many common shops would keep it, they can order it. The imported aerosol spray cans with under-body coatings are generally solvent-based.
All these products can be applied with the "rubbarise spray guns" as we know them and the solvent based products can generally be painted over after an hour.
There is also a poly-urethane system, but generally only used by better panel-beaters. This is to approximate the finish of weld and seam coatings used by factories. A very specialised application gun is used, so it is not a DIY solution.
I hope this helps.
TOPROB
083 227 3337

I have used luxor stone chip and can also recommend it. The only problem is the white yellows after a while.
For your application (not very visible) you can apply with a brush or roller.
Its been on my Paj for >1 year and I haven't noticed any signs cracking.
Good luck.

Also have a look at ABE construction chemicals.

They sell two products for vehicle underbody protection, Autokote and Ravenol. Contact them to determine which one will be the best for your application.

Have a look at their product map here: ABE DIY product selector

Autokote Data Sheet:Data sheet

Ravenol Data Sheet: Data Sheet

Most vehicle underbody coatings are hard to remove so you want to apply the right one the first time.