If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
*HF* Tightbond III
On Aug 11, 5:12 pm, wrote:
Is this stuff waterproof? ---------------------------------------------------------------------- Dear Dan, You've really got to test it for yourself. For top quality joints use the set-up procedure recommended by the FPL. The instructions on the package are rather whimsical. While all urethane adhesive use the same general formula, the composition varies from one manufacturer to another. The glue cures by reacting with moisture in the air and on the substrait. The reaction generates bubbles of carbon dioxide. Formulated for a fast reaction, the bubbles will tend to be larger than a glue formulated for maximum strength. The bubbles are closed cells except at the unrestrained surface, where they may join. ------------------------------------------------------------------------------------- Is it a urethane glue like Gorilla, ------------------------------------------------------------------------------------- No. Tightbond III is a vinyl-resin glue, similar to white carpenter's glue... except for being gray... and being CROSS-LINKED. That means, once it cures, application of heat & moisture can not reverse the process. As for being waterproof the answer is a bit of surprise. Immediately after application you can remove the glue with a lot of elbow grease and a damp cloth. But the longer is has time to cure, the more impervious it becomes. If you're building with wood you owe it to yourself to give it an honest test. I think you'll be glad that you did. -R.S.Hoover |
Thread Tools | |
Display Modes | |
|
|