I checked whether the closed polyurethane foam would harden. Got some wood glue

I decided to check what would happen to the foam if the containers were filled and closed. I already had such an experience, which showed that the foam will not solidify without air access. I filled a half liter bottle and a medicine bottle. There was a lot of air in the bottle and the sealant in it dried up, but there was no medicine container in it.

What is the use of this?

Firstly, the concept arises under what conditions the foam "works" and under what conditions it does not, and secondly, uncured foam can be used as glue, because its base is polyurethane with excellent adhesive properties.

Immediately I decided to glue two wooden bars to check, smeared them on the edges and pressed them with a clamp.

Two hours later, he unclenched the clamp and began to check the strength, it was not possible to tear it off with his hands, the hammer also failed. And only when he created a significant lever with the help of adjustable pliers, did he manage to tear off the glued bars.

The surfaces of the pieces of wood were not processed to a smooth surface, otherwise, I think they would simply break. Nevertheless, a piece came off one and remained glued. Such is the experiment conducted today, which showed that the foam can be used as a polyurethane adhesive.

Have you ever used foam in unusual cases?

Today I tried to do a device that will help you get to hard-to-reach places soldering iron for polypropylene pipes, but I'll write about it tomorrow.

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