Quote:
Originally Posted by steveooo
Red = Fast, Blue = Slow.
Potato, Potahtoe. |
That's interesting it used to be that the faster cure was considered a different product.
I wonder if there is any difference between 4200 fast and 5200 fast?
Personally I've only used the original 5200 and the faster 4200, but I have used a lot of it in marine applications like thru-hulls for large boats.
4200 hundred dries is faster, and is sticky stuff, we used it mainly for caulking above water seams, windows, trim, etc... but the original 5200 definitely sticks better once it completely cures, and we used that mostly for below the water line applications like through hulls. Keep in mind that when you use it on big boats the boat is often only out of the water (hauled out) for a few days so even if it's not fully cured on jobs like tru-hulls it does seal in a relatively short period of time, and continues to cure even if in the water.
As to adhesion. I've ripped sections of fiberglass right off a hull trying to get things stuck with 5200 off fiberglass. Once it sticks it sticks good.
Jim