Help!!!

[matt6288]

Well i built my first board a little while back now about 6 weeks i would say, ive just used normal ply wood that you get from B&Q or Home depot, when i first made it, there was flex in the board but just the right amount but now the board seems to be getting a lot more flexier and has started to bottom out, its made out of 3 sheets of 3ply 4mm plywood. Im not sure what to do to stiffen it up, ive heard that some people use a fiber glass coat, is that right??? if so is it fairly cheap, can it be applied over varnish, how much do i use ect. And before anybody says you should have made it out of BB, its my first board so didnt want to spend loads of money on something that migh break and its good enough so if i was to stiffen it up it would be better than making a new one!

[johnspurlock]

Check out the post named Strengthening Issues

[matt6288]

That dosent really help to be honest, when it comes to fiberglass i havent got a clue, if somebody told me the name of some fiberglass coat or something that i could get from B&Q / Home depot. Im looking for something that is clear and something that is just like a layer of varnish!

[Cranks]

The only thing you can do to stiffen it up is either add wood or some other material. It won't be spray on and you won't be able to get it at home depot. Buying things from home depot comes from lazyness.

Look for an industrial plastic store (hint: yellow pages) for fiberglass, epoxy, some rubber gloves and some disposable plastic measuring cups. You will probably have to buy about $50 bucks worth of stuff because I don't know of any way to get less than 8oz of epoxy.

Adding 1/8th of an inch of wood will also work, and will cost you next to nothing. Get better wood this time, and it will last longer.

What happened to your board is exactly the reason everyone says get proper plywood, not home depot stuff.

[Carvster]

maybe your just gaining weight?

[boby]

I remember one of the first boards I made was made from 12mm pine plywood with 5 layers. After a little while the glue broke down and developed a permanent bend-rocker!!

There is a reason why people have such thoughts against cheap plywood. That said theres nothing wrong with trying out ideas and learning the limitations of wood. It will also teach you about pressing and what not.

So dont give up!

William

[boby]

Also I don't think it would be a wise idea to fiberglass over top of the varnish as it might delaminate. I could be wrong though.

If you don't want to spend any more money, you could laminate a strip or another layer of the plywood onto the bottom.

The type of glue you use could also be your problem?