You know why all radiators aren't made from aluminum? Corrosion. Some are and you better use the coolant they recommend, or change the fluid every two years.
As you boil antifreeze, acids begin to form from the chemicals you boiling off the fluid. The fluid also becomes electrolytic. The hard coat anodize coating, our PTFE top coat and our nickel plate handles are all plated by electrolysis. What you end up doing is stripping the plating off the surface. Then IONS are created in the fluid and this starts to eat the aluminum parts as causes pitting. On thin wall parts, it will eat a hole through the part. (why they don't make aluminum radiators.) Add to that, the boiling temperature for coolant is 370ยบ. That's not as hot as we anneal aluminum parts at or heat treat, but it is getting close. Hope you don't just dunk them in cold water to cool them off.
Over time, all the anodized coating will be stripped off. That coating is .0001 thick. Applied to the ID of a port it is a difference of .0002. Now you start to bypass fluids. For foamers, we notice it over time, but if you spray polyurea coatings - you're spraying at 1500-3000psi. With that huge increase in pressure, your leaks will be noticed much faster than foamers that just use 1100psi.
Need to see a customers gun we just cleaned and rebuilt because it was by passing too much? Click here.
Check out our Foam & Polyurea Solvents for a safe/effective clean
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Nice post, It is very helpful for us. Keep it up guys.
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