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Thread: phenol resorcinol toxicity
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16th February 2018, 11:16 AM #1Novice
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phenol resorcinol toxicity
Some time ago I rescued a glulam beam offcut from a house being built. Not sure what the woods are but they're hardwood. Now I was going to build a butcher block with it but haven't gone ahead because the glue that was used was probably a phenol resorcinol type. I read that this type of glue is toxic while it's curing. What I am having trouble finding is info as to whether the glue is still toxic after curing as after all it's going to be a cutting board and food will be resting on the board which will receive knife cuts. Can anybody advise or at least point me to any scientific papers?
Shame to waste such a nice piece of timber.
ken
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16th February 2018 11:16 AM # ADSGoogle Adsense Advertisement
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16th February 2018, 12:25 PM #2.
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Wet food resting on it should not be a problem as it is stable when wet.
Knife cuts will eventually cause tiny amounts of glue and wood to be ingested.
It is supposed to be stable in acidic conditions but there's no indication of how acidic.
My guess is the gut will break it down releasing alcohol, and formaldehyde, which also occur naturally in small amounts in the human body.
Most of what would be ingested is wood and I strongly suspect the natural resins in the wood itself are probably more toxic than the cured glue.
We have been around this circle many times on these forums.
Even some of the most toxic woods around require considerable amounts to be ingested before they would cause problems.
A couple fo years back I worked out that it would require a 50kg person to eat ~250 toothpicks in one sitting of Cooktown ironwood (one of Australia's most toxic wood) to kill them.
Different people will have different sensitivities so some people may be more allergic and may feel the effect with much smaller amounts but it represents the same risk as ANY wooden cutting board.
Overall risk has to be weighed up with the antibiotic nature of wood which naturally kills bugs etc better than any ceramic or plastic board.
There would be some issue with cutting/planing the wood in a confined space it as this would release formaldehyde gas and then you would breath that in. The same precautions as for MDF would cover this issue.
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19th February 2018, 08:34 PM #3Novice
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Have found further info at toxnet.nlm.nih.gov/cgi-bin/sis/search/a?dbs+hsdb:@term+@DOCNO+722
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19th February 2018, 11:01 PM #4.
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