Dust and oils from Ipe wood are allergenic and toxic. You need serious personal protective gear if you work with Ipe. Here's more info. May 16, 2008
Question
I've followed the many postings concerning ipe for the last year. Recently I got a great deal on a pallet load of ipe flooring (kiln dried 3/4"). The color is all over the map, but quite attractive nevertheless. I plan on using ipe along edges and in high wear situations, for which its properties are well suited.
My main concern is safety. Ipe dust is both toxic and allergenic. Also ipe splinters rapidly fester. This is well known. Now that I've worked with a significant amount of ipe, I'd like to add a few additional observations...
1. Ipe dust is very, very fine. It gets over and into everything - clothes, body hair, tools. Dust this fine is essentially electrostatically bound to surfaces, so it takes a determined effort to remove it.
2. Ipe dust contains silica, which is partially responsible for its harshness to tools. Very fine dust containing silica is life threatening. Ask any coal miner or, in Minnesota here, iron miner, what happens when you're exposed to silica containing dust on a regular basis.
3. Because the dust is so fine it may not be completely filtered by our dust collection and air filtration systems. (Dr. Gene, any opinions on this one?)
4. Some people may not initially react strongly to ipe. This is bad, because you're still getting the silica laden dust into your lungs. Your body's allergic reactions are nature's ways of telling you there's danger.
So, what to do?
1. Cover your body. Gloves, hair nets, long sleeve shirts, the whole works.
2. Dust collection systems running full bore - never work with ipe without them.
3. Get a powered respirator. Triton makes one for $150 that combines a hardhat, face shield, ear muffs, and shroud that pulls tight around the shoulders and neck. The air is taken in by a battery powered filter pack worn in the small of the user's back and the filtered air enters the back of the hardhat and gently blows down the user's face. Even on muggy days the visor doesn't fog up. The system is so effective that, when working with aromatic red cedar, I can barely smell it. This is an effective system for working with ipe. (Note: I have no connection whatsoever with Triton. I'm certain that there are other products that will do the same thing.)
4. Shower after working with ipe. Remember that the dust adheres to your clothes. Blowing yourself off with an airgun (even while wearing the powered respirator) will not remove all the ipe dust from your clothing. If you can't shower, at least bring a clean shirt to change into.
Some readers may think this is way over the top. I disagree. I was one of the lucky ones who didn't react strongly to coco-bolo or canary wood or a few other beautiful but dangerous woods. Yes, I wore masks and cleaned the shop. However, slowly my immunity vanished and occupational asthma set in. Thanks to emergency intervention at Mayo Clinic, I survived two status asthmatic attacks. Shortly thereafter, I had to abandon my cabinetmaking business (13 years as a furniture maker) and return to corporate America.
Topic: Ipe (Read 808 times)
