baffle skimmer

So I have just finished my 40 breeder sump.... let's say the last of the silicone was put on at 6 p.m. est. My baffles are made of 1/4 plate glass to have added strength and a better seal formed with the silicone vs plexi/acrylic baffles How can make this silicone dry or cure faster...

Have a E.T.S.S 600 skimmer....Miro bubbles are making my tank look like poo! How do you baffle the return to break up/ slow down bubbles.? How high from the sump floor should the return be.? (i have it about 3" above sump floor)..2 low..? any help would be great thanks again!