I did the SG on my new Optima 2 weeks ago. SG is meant to protect the paint from oxydisation not damage. Its 5 year warranty covers the paint quality. SG is not meant to protect against physical scratches or damage from flying stones on highways. It does provide a certain degree of protection as it covers the original paint with another layer but dont expect some extraordinary protection.

With the Sierra Glow, u wont need to polish or wax for 5 years or so they claim. But for periodic maintenance, u must use the clay bar (which is simple enough). Normal washing is recommended. Avoid going to car washes as they use strong detergents and cloths in bad condition which may damage the paint surface.

But for only RM700 and a 5 year warranty, i would say its worth a try. Even if it lasts 2 years ill be happy. But Mr Choong is a very friendly person and quite accomodating. Give it a try. U wont regret.

Yes its a combination of silika and quartz coating. For RM700 and a 5 yr warranty, i wont complain.

Ive used SG for 6 months now. The shine seems to be a bit less than before. Paint surface is also not smooth anymore as compared to when u do a new coat of polish. I clay bar the car about once a month. Is this normal? Any of you experiencing the same?

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Added on November 15, 2012, 11:52 amDid the water spots appear only now or was it there before?

This post has been edited by cybermaster98: Nov 15 2012, 11:52 AM

The problem with most ppl is that they dont realise a few things about maintaining a car that has a coating:

1) You should not wash the car on your own unless you have the correct cloths. You cant use normal soft cloths as even this will scratch. The right cloth to use for the body is actually a type of skin cloth. This cloth isnt cheap and costs about RM80 per piece. Most of the professional car washes have this. Thats why its always advised that you should send your car to those car washes instead of the roadside ones or doing it yorself. You can get yorself/yor friends enrolled on 1 of those membership programs and you'll enjoy cheaper washes for a few years. In Feb 2012, I recommended a friend to do his polishing/coating at Pit Stop TTDI and since then i get my K5 washed and vacummed for only RM8 (normal price RM20). This offer is valid until Feb 2015 which i think is a good deal. Look for such deals and ull might just find one.

2) Cars with coatings should always be wiped dry after a rain. The water must never be left on the surface overnight or else you will get watermarks. But if you use that normal cloth, then ure gonna scratch the surface. So might be worth investing in the correct cloth which any professional car care centre can order for you. You cant get this type of cloth at the hardware shop so dont bother trying. All those cloths supposedly suitable for cars are in fact not suitable. If your car gets wet after a rain and you have no means to actually wipe down the car, at least hose off the car so that the acidic rain water is not left on the car surface as this eats into the paint and causes the water marks.

So before you blame the coating, first ask yourself if you have maintained the coating in the correct way. Thats why you should always think twice before spending money on doing a coating. If you feel you cannot spend the money and effort to maintain the coating then you might as well not do the coating and just do the periodic polish and wax instead.

This post has been edited by cybermaster98: Mar 1 2013, 08:42 AM

My post was a general post. Just because your earlier post was quoted doesnt always mean i was refering to YOU. If u read my earlier statement, you'll see that i mentioned PROFESSIONAL CAR WASH CENTRES. Not all car wash centres are professional and i didnt assume as such. Slightly worn cloth is fine as long as the material of the cloth is correct. You cant possibly expect the car wash centre to replace cloths every week do you? Professional car washes also do not use any form of bucket system. So if your car wash centre uses them then its clearly not PROFESSIONAL. I also didnt ask you to WASH your car after the rain. I said WIPE IT DRY. Washing and wiping a car are 2 totally different things.

Speaking of that, I find that some ppl just love to shoot at people without reading carefully first.