I sprayed the balsa with cheap hair spray and let it dry. I mixed up the resin and added the dye, I couldn't find any red so I bought fuschia which is a pink color. I didn't put a lot in the epoxy and it didn't didn't show up in the picture but you could see it on the balsa when I was rolling it on. The West System is very easy to use with the pumps. I ended up putting in two pumps of resin and two pumps of hardener and by the time the roller soaked some up it was just enough for the front hatch. After it had it applied to the balsa sheeting I put it in the shuck and lined up the hatch and other shuck and taped it on place with masking tape. Then I trimmed the corners of the balsa like Terry showed in his video.
Now that everything is in the shucks I put the hatch in the bag. I have a piece of breather cloth that goes from under the foam to the nipple, and I installed a small piece of cardboard right under the nipple. I also installed some small pieces of 1/2" plywood on top of the shucks at the ends to even out the sides of the hatch. I went a head and timed how long it took to evacuate the air out of the bag and it took about 3-1/2 minutes. The size of the bag I used was 36" X 34" and the e EZ-pump is so quite that you can barely hear it run so if you are worried about the noise don't', it is very quiet. I think my cell phone on vibrate makes more noise than this pump.
If you are on the fence about trying the vacuum bagging, just go for it. It isn't that hard to do. I have never done this before today and I didn't have and problems at all. Just watch the videos that Terry made and you won't have any troubles at all. I bought the EZ-pump kit, two 36" bags, extra nipple, and extra tubing clamps. This cost me $210.00 shipped to my house and you can see everything I bought in the picture. This is fairly inexpensive to get into vacuum bagging and you can always upgrade to a larger pump at a later time if you think you need too.