Darryl Keil Last Activity 2025-09-09 11:09 AM
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dale kern

Posts: 6

Joined: 2008-01-07
Location: manhattan, il

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Subject : urea formaldahyde in unibond 800
Posted : 2008-01-07 12:02 PM
Post #34235

Darryl,

Is the urea formaldahyde primarily in the catalyst (powder) or in the resin? I have had great success using unibond and following your videos for instruction (they rock!). I'm wondering when is it safe to strip off the respirator with formaldahyde cartridges? I've been waiting until everything is in the bag, but that leaves clean up... Is the real danger in the mixing process where the catalyst can blow around? Thanks for your help!

Dale



 
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Darryl Keil

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Joined: 2003-05-22
Location: Maine

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Subject : RE: urea formaldahyde in unibond 800
Posted : 2008-01-07 1:22 PM
Post #34236 - In reply to #34235

Dale,

The formaldahyde is in the liquid not the powder. The bulk of the powder is just pecan and walnut shell flour.

Sincerely
Darryl Keil


 
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Scott

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Joined: 2006-08-23
Location: New Hampshire

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Subject : RE: urea formaldahyde in unibond 800
Posted : 2008-01-07 2:05 PM
Post #34237 - In reply to #34236

Darryl, So at what point do you need to be most aware and wear a repirator. Would that be only when you are sanding and the liquid becomes airborne? I would assume in a liquid state you cannot inhale it because it can not make dust and therefore you do not need a respirator. I realize you would need to keep it off your skin.
Scott


 
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Darryl Keil

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Location: Maine

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Subject : RE: urea formaldahyde in unibond 800
Posted : 2008-01-07 8:07 PM
Post #34239 - In reply to #34237

Scott and Dale,

Its during the spreading that I would be most aware as this is when you have the largest area of glue exposure. Next would be during clean up, although this is much less. Then when you take the panel out. This is when the remainder of the free formaldehyde off gases. Last and the least is when sanding. Partly because the majority of the formaldehyde is gone now and because most of whats left is at the glue line where you wont be sanding it. At least you hope not. When sanding I use a dust mask because its only particulate matter not vapor you are concerned about at this point.

Darryl


 
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dale kern

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Joined: 2008-01-07
Location: manhattan, il

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Subject : RE: urea formaldahyde in unibond 800
Posted : 2008-01-07 4:56 PM
Post #34238 - In reply to #34236

Darryl,

Pecan and walnut flour, you say? That would make one heck of a muffin!!!

Thanks for the info. I guess the issue is one of not breathing the outgassing fumes from a fresh batch of glue, even during clean up. Then of course the long term outgassing and dust inhaled when cutting the panels. Ok, I'll keep the respirator on 'til 1) panels are in the bag 2) during clean up 3) during cutting

Dale


 
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Scott

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Joined: 2006-08-23
Location: New Hampshire

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Subject : RE: urea formaldahyde in unibond 800
Posted : 2008-01-16 12:02 PM
Post #34267 - In reply to #34238

Darryl, not to beat a dead horse but, in your opinion, how dangerous to your health are the formaldahyde fumes ,if you use the unibond several times a week, on a scale of 1 to 10 with a one being the level of risk of getting cancer from the natural radiation emitted from natural substances such as rocks and a ten being the level of risk of getting cancer from sitting on a pile of the uranium waste from a nuclear reactor with no protection. Sounds like a silly question but alot of times I forget my respirator and was wondering how dangerous formaldehyde really is.


 
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Darryl Keil

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Location: Maine

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Subject : RE: urea formaldahyde in unibond 800
Posted : 2008-01-17 3:39 PM
Post #34271 - In reply to #34267

Scott,

Does this include a cigarette hanging out of the corner of your mouth at the same time? Just kidding.

In a culture of "cover your behind" and as a manufacturer of this glue I should tell you to protect yourself all the time, no matter what, which of course is the safest approach.

In reality the answer is not so straight forward as different people are more and less chemically sensitive. I remember in high school, dipping my hands in jars of formaldehyde with preserved mice in them. Also, some people are fine for a long time and then finally build up a chemical sensitivity, so it makes a difference if your doing it twice a week for years and years. I'll make a wild stab at your 1 to 10 question and say about a 4. Higher if you do it every day. If you're using your respirator most of the time and forget it every once in a while the risk would be less.

Does this help?

Darryl


 
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Scott

Posts: 31

Joined: 2006-08-23
Location: New Hampshire

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Subject : RE: urea formaldahyde in unibond 800
Posted : 2008-01-17 3:59 PM
Post #34272 - In reply to #34271

Darryl, Yes it does and thank you for your answer. Ill try to remember to keep the respirator on and stay away from the nuclear waste. (especially while smoking) Thanks again. Scott


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