On Tue, 4 Dec 2012 10:30:15 -0800 (PST), spamtrap1888
<
spamtr...@gmail.com> wrote:
[...]
>>
>> And like most such posts, the OP asks a question and then tells us
>> that he has already done something. In his case, gluing with PVA;
>> which is a very poor choice for something that will be moist. The
>> board was most likely originally glued with either aliphatic resin
>> glue (Titebond II for example) or a heat cured phenol-formaldahyde
>> resin. Once you put PVA on the gap, you are screwed as nothing else
>> will stick to it and it is very difficult to remove without tools.
>>
>> Since the OP was apparently concerned with hygiene, non of the
>> solutions offered are likely to fill the crack, not be moisture
>> absorbant, and stay pu.
>>
>> Titebond II is FDA approved for indirect food use (cutting boards) and
>> essentially weatherproof. Like many things, you probably should not
>> feed it to your dogs either.
>
>Funnily enough, the manufacturer says Titebond II is a non-toxic, PVA
>emulsion glue:
>
>
http://www.highlandwoodworking.com/msds/165021-Titebond-II-16oz.pdf
>
>Is there more than one Titebond II?
There is some confusion, possibly mine. The OP said "white glue"
which, until recently was most commonly a casein-based glue with the
disadvantages I mentioned. Prompted by your response, I checked the
Titebond site and discovered that Titebond is now (the MSDS is dated
in the first quarter of 2012) making a WHITE PVA. It is possible
that the OP used this white glue. However, the applications notes and
limitations published by Titebond suggest that the white PVA should
not be used outdoors or in contact with moisture. Titebond II is
described in the relevant MSDS as crosslinked PVA and is safe for
indirect food uses such as cutting boards as well as weather and water
resistant. It also creeps less than the older PVA glues if you are
using it under shear stress. All told, the poster who suggested
ripping the joint and regluing is certainly correct, assuming that the
OP has the tools with which to do it. (in which case he probably would
not have been asking...)
I wonder where in this thread the OP gave up and went shopping?