From: Uncategorized | Automotive Parts Suppliers

Cons:

Copper radiators are generally heavier than its aluminum counterpart

Since copper radiator tubes have smaller, narrower tubes, it tends to clog more than aluminum tubes
First, weight/heat transfer ratio depends largely on design. There are copper-brass radiators that actually are of equivalent weight than aluminum radiators for the size and even better in terms of heat transfer capacity.

Second, it is absolutely wrong that brass radiator tubes are more prone to clogging. Brass tubes have thinner walls being a function of brass' higher tensile strength. This in turn translates to a larger internal tube diameter.

Aluminum tubes have thicker walls because the brazing process used in manufacturing aluminum radiator cores, literally evaporates layers of zinc off the tube and brings aluminum very near its melting point. This necessitates a thicker tube wall to ensure sufficient structural strength is maintained.

Clogging is an issue due to debris emanating from corrosion. If we look at things as they are, aluminum radiators are more prone to corrosion, especially in the absence of coolant, and are thus more mechanically prone to clogging.

Pros:

Aluminum...Shinier and flashier than copper radiators (if ever you plan to use your vehicle for show)
Is it now?



Much lighter in weight. The difference is about 30-40%. So if you’re planning to speed your car up, go with aluminum radiators.
A fair comparison in weight for radiators has to be phrased in relation to heat transfer capacity. Yes aluminum is lighter. But given specific applications an aluminum radiator will end up larger and heavier for a certain performance point.

Aluminum Radiators have 1 inch wide tubes compared to copper radiator’s half-inch wide tubes...
Wrong. More advanced copper-brass radiators have wider tubes. Tube and fin geometries are determined by requirement, most conventional manufacturers simply adapt what they have in lieu of failing to invest in more advanced technology to streamline design.

Cons:

Aluminum Radiators are said to let Air flow into the system – causing rust
WTF? Rust is Iron Oxide. This doesn't even make sense.

Easier to break when vehicle overheats
I'm sure Evercool has seen its fair share of radiators it has made that has bulged, buckled and leaked. A properly constructed aluminum radiator will be as good as a properly built copper-brass radiator.

Harder to repair than copper radiators
Not with the correct welding alloy.

This is irresponsible marketing. It isn't even skewed, its just outright erroneous.