We recently glued together two 4x8 sheets of ply and then tried to pry them apart.
Gluing 2 sheets of plywood together.
The only caveat is if you re trying to used pre finished plywood the finish would get in the way of the glue.
Squirt glue all over one of the pieces of plywood.
Face the good sides.
When you re gluing several boards together it can be difficult to get all the top surfaces perfectly aligned.
Here s a tip that solves the problem.
Plywood for instance is always glued up of an odd number of laminates for balance.
One could use screws to pull the pieces together and hold till the glue cures.
Inspect both sides of the plywood and choose the sides you like best.
If you want to bond them together to make a single sheet of 8ftx2ft x 1 1 5 inch thick plywood you need to do this.
It may take a lot but they are cheap and reusable.
After job is done remove the screws leaving the two pieces laminated.
Showing you how i go about laminating glueing 2 plywood sheets together to make a very sturdy and thicker sheet of plywood.
Lay two pieces of plywood out on two sawhorses.
Finish each board for about 20 to 30 minutes before moving into the next board.
Put the second piece of plywood next to the first standing on edge.
Spread the glue into an even layer with a small flat stick.
Assuming there is a back side or a side unseen and damage will not be a problem.
Get as many cinderblocks as you need to apply the recommended pressure.
It sounds like you re planning to stack two sheets together.
It s better for us to get all done at a time to ensure the top surfaces in a board aligned.
Here again assuming full sheets of plywood as smaller could be clamped in a device.
Lay one piece of plywood on a flat surface the floor would be best.
How to glue plywood together.
In your case a half inch center with quarter inch glued to both faces might be safer than gluing 3 4 together with 1 4.
This will give you tons of contact with long grain to create a really strong glue joint.
Wet both sides with a water soaked rag then spread the glue all over.
Also each opposite laminate is of equal thickness to the other.
Gluing several sheets of plywood together is to make it thicker.
I ve glued plywood together with regular wood glue many times and it s not an issue.
Let the glue joint set for about 20 to 30 minutes then release the clamps and add another board.
Perfect to be used as a workben.