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PJS · 19th August 2007, 20:22

The test is very applicable since the purpose of any wax/sealant system is to protect the paint.
Putting the product on bare steel demonstrates unequivocally that the product protects or doesn't. It's not about anti-corrosion.
In the accelerated test that ASTM B117-07 conducts, it provides an indication of the longevity of the product to do it's job of protecting the paintwork.
In the above results, it's clear to see those products aren't able to last beyond (a projected) 3-4 days worst case scenario (constant rain). Even best case wouldn't be more than 2 weeks, yet we're lead to believe months on end are expected.
Even the company whose product is able to last the 24 hours, and only starts to stop working after 72 hours straight, suggests 1 month maximum between applications.

That's why if all the manufacturers submitted to the test their products, I suspect we'd see much the same results as those above. Hardly something they'd want to have publicly known, since they work on the principle of "ignorance is bliss".

I've no particular axe to grind, I'd just like to see them actually prove empirically that their product does what is claimed of it.
The ASTM B117-07 test is one such way since it's used by the paint industry themsleves, and it's paint protection these products purport to protect.
If they can't last long enough on bare steel, then what chance have they of lasting on paint/clearcoat long enough to offer the protection they say they do?

I'm sorry, but it's fairly clear cut in my eyes, and if anyone wants to send me samples of the products they believe in, I'll happily send them to be tested and display the results for all and sundry to see, and draw their own conclusion from.
It's not rocket science - either the product doesn't let water penetrate to below the protection layer and slide off the surface, which is exactly what's happening in the above results.
Once off, the salt water can set about doing its damage. Same thing for car paint - no wax/sealant and the acid rain/UV/bird poo can all do their damage.

19th August 2007, 20:22	#19 (permalink)
PJS Triangular Exhaust Join Date: 27th May 2006 Location: Belfast Posts: 486 Thanks: 0 Thanked 21 Times in 18 Posts iTrader: (0)	The test is very applicable since the purpose of any wax/sealant system is to protect the paint. Putting the product on bare steel demonstrates unequivocally that the product protects or doesn't. It's not about anti-corrosion. In the accelerated test that ASTM B117-07 conducts, it provides an indication of the longevity of the product to do it's job of protecting the paintwork. In the above results, it's clear to see those products aren't able to last beyond (a projected) 3-4 days worst case scenario (constant rain). Even best case wouldn't be more than 2 weeks, yet we're lead to believe months on end are expected. Even the company whose product is able to last the 24 hours, and only starts to stop working after 72 hours straight, suggests 1 month maximum between applications. That's why if all the manufacturers submitted to the test their products, I suspect we'd see much the same results as those above. Hardly something they'd want to have publicly known, since they work on the principle of "ignorance is bliss". I've no particular axe to grind, I'd just like to see them actually prove empirically that their product does what is claimed of it. The ASTM B117-07 test is one such way since it's used by the paint industry themsleves, and it's paint protection these products purport to protect. If they can't last long enough on bare steel, then what chance have they of lasting on paint/clearcoat long enough to offer the protection they say they do? I'm sorry, but it's fairly clear cut in my eyes, and if anyone wants to send me samples of the products they believe in, I'll happily send them to be tested and display the results for all and sundry to see, and draw their own conclusion from. It's not rocket science - either the product doesn't let water penetrate to below the protection layer and slide off the surface, which is exactly what's happening in the above results. Once off, the salt water can set about doing its damage. Same thing for car paint - no wax/sealant and the acid rain/UV/bird poo can all do their damage. Last edited by PJS; 19th August 2007 at 20:34.