I built this bench a few years ago, tonight I put the final touches on Rev2. I will start Rev3 in a few weeks.
On this project several #10 stainless steel screws driven into properly predrilled holes had their heads break off.
I cannot say this project has dulled my blade. I can say Ipe will build pitch on any blade, router bit, or drill bit you use on it. The oils in the wood also affect the ability of any drill bit to eject shavings. This is the case with forstner, brad point, and standard twist bits; every single one of them clog.
Speaking of oil.
It does route fairly well but linger for half a second and it will burn and burn bad and deep.
I curse myself for using this stuff due to all the slivers, difficulty cutting, drilling, screws, and misery to sand, but, man does it hold up well to the weather.
I've left that bench out uncovered for an entire winter and it is no worse for wear.
It spent most of a year without a cover at all getting hit with sun, rain, hail, sweating beverage containers set on it, and bird dropping; its just fine.
After all this abuse it only requires a light sanding with the random orbital and a fresh coat of Ipe Oil.
The reason for the abuse is simply to learn the durability of the wood (Ipe and white oak) and my construction techniques (pegged mortise and tenon). I have several people interested in purchasing benches but I need to know they will last, they will.
One the upside, the scraps light up like and oily rag which help when starting a fire on the patio.
Obviously, you use pads with it.
PatioBenchV1.jpg