4500 HOUR ASTM B117-11 TESTING
Everyone in the industry understands this test - you take a sample and subject it to the most corrosive environment you can create, do it for as long as you can - and see what happens. In the warm, salty and moist environment of a hot salt fog cabinet, unprotected steel will rust right in front of your eyes - and keep on rusting until it is an oozing pile of sediment, without form or structure.
|Zinc-plated bolts after 18 months offshore|
We recognised this when first testing Enviropeel, back in the 1990s. Samples were tested for 3000 hours - said to be the equivalent of 30 years in an offshore environment. The Enviropeel-coated samples passed without a blemish but, 15 years later, it seemed like a good idea to try an even more severe test over an extended period - the first to be 4500 hours.
188 DAYS LATER ...
So, in early 2013, a number of samples were placed in a large hot-salt fog chamber and testing commenced. After more than six months (longer than NASA will take to get a manned flight to Mars), the first sample was removed to see the results. The other coated samples were left in the chamber - the next to be removed when NASA might have reached the outer limits of the Solar System or after a year - whichever comes sooner!
For complete details of the test you can follow this link but a picture is worth 4500 words - and, as you can see, the difference between the Enviropeel-protected bolt and its less fortunate companion is quite startling. With no deterioration of any kind on one and a definite case of man flu on the other - it's easy to see why Enviropeel makes so much sense when it comes to protecting bolted systems.