Thread: removing bubbles from polyester resin

Vibration will do it.

Air flow over the surface - same thing that holds an airplane up. Google [bernoulli].

Cheers,
Joe

I watched a video of a guy who put down this ultra glass like resin. After he mixed and spread it down over the surface he used his little butane torch to hit the areas with the bubbles, they popped almost instantly.

I'm not necessarily saying it is appropriate for this, but I am doing a repair soon myself and thought about it a bit. The negatives of course are if the epoxy is flammable or yellows. I would think a quick test would answer this pretty fast.

e

Originally Posted by joe greiner

same thing that holds an airplane up. Google [bernoulli].

Cheers,
Joe

Actually it doesn't. Bernoulli's equation is for fluid (incompressible) dynamics. I imagine it's still taught that it makes airplanes fly, but Newton's the man. The more air molecules you push, the more they push back.

However, blowing air across the surface will lower the pressure and should help if the surface tension is not too great.

Originally Posted by Bernoulli

Actually it doesn't. Bernoulli's equation is for fluid (incompressible) dynamics. I imagine it's still taught that it makes airplanes fly, but Newton's the man. The more air molecules you push, the more they push back.

However, blowing air across the surface will lower the pressure and should help if the surface tension is not too great.

Bernoulli's principle applies equally well to gases at low speeds.

I just blow on it.