How do you apply fiberglass tape to join wing halves ,i know you use epoxy but do you apply it over the top or on the bottom and then lay it on top and if your wings are pre covered how and what with do you cover over the tape?

Check out this gold mine of information: [link=http://www.airfieldmodels.com/information_source/how_to_articles_for_model_builders/construction/joining_wing_panels/04.htm]Airfield Models[/link]

That's a good site, but here's what I do.

Cut the fiberglass to size with a slight overlap at either end (1/2" or so).

Use the masking tape shields on either side giving enough room for a 1/4" gap on either side of the tape.

Apply a brushing of 30 minute (or longer) epoxy with an acid brush.

Lay the glass tape on that.

From the center brush on more epoxy to wet it out. As you get near either end snip the fiberglass cloth off (this prevents it from "walking" off target as cutting to size first can).

Remove the masking tape.

Lay a piece of waxed paper or cellophane wrap over the epoxy and smooth out the air bubbles with a credit card, business card or other spatula. Gently, you don't want to squish all the epoxy out, just the air bubbles.

Leave the covering on overnight.

Peel off the covering. No sanding required. But you will want to sand it lightly before painting or covering to remove the waxes (amine blush) from the epoxy and help the paint or covering glue to adhere well.

Now that is a great answer! and way better than my method[8D]

do i do it the same on my sky raider wings that already have a covering, i was planning on putting a piece of the tape over the middle of the two wings that i have already put epoxy between and then put a piece of self sticking monocote over the tape can this be done?

Yes. You can't epoxy over Monokote (you can, but it will just pull up the weak Monokote adhesive and have no strength). Remove a 2" wide section of the covering by carefully scribing it with a razor just enought to slice the Monokote and peel it away. Try not to score the wood. Then, when the epoxy is set, lightly sand it, wipe with acetone if you have some, and apply the trim tape when that has evaporated off.

I was under the impression that 'amine blush' was from mold release agents. Have I been misinformed?

Hmmmm
I am not familair with "amine blush" , but epoxy does get a film of oily or waxy nature when curing. That is what is being refered to and needs to be removed to get anything to adhere to it.
FYI CA glue won't stick to epoxy at all.