Spare Tire Well Air Space...

B&W_Evader · 10-09-2017, 08:49 AM

Pilot Supplies and Aircraft Parts from Aircraft Spruce

This is really good resin. Very little outgassing (smell) Great for bagging.
MGS EPOXY RESINS from Aircraft Spruce

Fiberglass / Kevlar / Carbon fiber is pretty good on ebay.

Carbon tow if you really need to strong spot.

Super light panel can be made with a layup like this...

1 layer 1 oz glass cloth
1 layer 5 oz carbon single weave
1 layer balsa wood. 1/8" thk
You can do thick panels with end-grain balsa 1/2"+ thickness (super strong)
1 layer 5 oz carbon single weave
1 layer 1 oz glass

.015 thick mylar to lay and squeegy each side and a vacuum back to pull it all together.

Look up vacuum bagging videos.

Practice on some small pieces first. Use the 60 minute hardener to give yourself a little more time.

It's going to be about 24 hours in vacuum so if you have a loud pump it may be an issue for other people in the house. My wife used to hate my little diaphram vacuum pump running all night. She'd bitch and moan for a couple of days about it. Don't try it if the temp is going to be below 75F

B&W_Evader · 10-09-2017, 08:58 AM

If you're going to go fiberglass with the cheap polyester resin...

Make your box out of wood and get the shape you want. Then coat it with fiberglass mat and resin. Make sure you use enough resin to get all the little air bubble out. Most of the work is getting as much of the air as possible out. Let it kick and then go to town with 60 grit before it gets really hard. You can knock a lot of material off without too much work that way. Doesn't get all powdery either. Stop and wait if you see the fibers tearing out of the soft resin. Need to wait until it's just a little harder. Should be where you can leave a slight mark with a strong fingernail.

B&W_Evader · 10-09-2017, 09:00 AM

One other trick for you...

You'll need polystyrene foam. The kind that will dissolve in gasoline. You shape it to your liking and put the glass and resin over it. Once you have the shape, you use gasoline to dissolve the foam out. You need to use the epoxy resin on this. The polyester stuff will dissolve the foam just like gasoline. Again... make a couple of small test piece before you go large to get the feel of it.
https://www.youtube.com/watch?v=FJYNmJOwPH0
https://www.bing.com/videos/search?q...7D&FORM=VRDGAR

also... Use gloves and at least a dust mask. fibers in your lungs is bad.

10-09-2017, 08:49 AM	#1 (permalink)
B&W_Evader Track Member Join Date: Aug 2011 Location: CA Posts: 972 Drives: slower than before Rep Power: 387	Pilot Supplies and Aircraft Parts from Aircraft Spruce This is really good resin. Very little outgassing (smell) Great for bagging. MGS EPOXY RESINS from Aircraft Spruce Fiberglass / Kevlar / Carbon fiber is pretty good on ebay. Carbon tow if you really need to strong spot. Super light panel can be made with a layup like this... 1 layer 1 oz glass cloth 1 layer 5 oz carbon single weave 1 layer balsa wood. 1/8" thk You can do thick panels with end-grain balsa 1/2"+ thickness (super strong) 1 layer 5 oz carbon single weave 1 layer 1 oz glass .015 thick mylar to lay and squeegy each side and a vacuum back to pull it all together. Look up vacuum bagging videos. Practice on some small pieces first. Use the 60 minute hardener to give yourself a little more time. It's going to be about 24 hours in vacuum so if you have a loud pump it may be an issue for other people in the house. My wife used to hate my little diaphram vacuum pump running all night. She'd bitch and moan for a couple of days about it. Don't try it if the temp is going to be below 75F ChopsZ likes this. __________________ \|RIP\|6spd-sport\|OSG-LSD\|XP8\|RBF600\|Eibach Sways\|RE-71R\|FI-34Row\|Gen3-CAI\|Yaw P.S.\|

10-09-2017, 08:58 AM	#2 (permalink)
B&W_Evader Track Member Join Date: Aug 2011 Location: CA Posts: 972 Drives: slower than before Rep Power: 387	If you're going to go fiberglass with the cheap polyester resin... Make your box out of wood and get the shape you want. Then coat it with fiberglass mat and resin. Make sure you use enough resin to get all the little air bubble out. Most of the work is getting as much of the air as possible out. Let it kick and then go to town with 60 grit before it gets really hard. You can knock a lot of material off without too much work that way. Doesn't get all powdery either. Stop and wait if you see the fibers tearing out of the soft resin. Need to wait until it's just a little harder. Should be where you can leave a slight mark with a strong fingernail. ChopsZ likes this. __________________ \|RIP\|6spd-sport\|OSG-LSD\|XP8\|RBF600\|Eibach Sways\|RE-71R\|FI-34Row\|Gen3-CAI\|Yaw P.S.\|

10-09-2017, 09:00 AM	#3 (permalink)
B&W_Evader Track Member Join Date: Aug 2011 Location: CA Posts: 972 Drives: slower than before Rep Power: 387	One other trick for you... You'll need polystyrene foam. The kind that will dissolve in gasoline. You shape it to your liking and put the glass and resin over it. Once you have the shape, you use gasoline to dissolve the foam out. You need to use the epoxy resin on this. The polyester stuff will dissolve the foam just like gasoline. Again... make a couple of small test piece before you go large to get the feel of it. https://www.youtube.com/watch?v=FJYNmJOwPH0 https://www.bing.com/videos/search?q...7D&FORM=VRDGAR also... Use gloves and at least a dust mask. fibers in your lungs is bad. ChopsZ likes this. __________________ \|RIP\|6spd-sport\|OSG-LSD\|XP8\|RBF600\|Eibach Sways\|RE-71R\|FI-34Row\|Gen3-CAI\|Yaw P.S.\| Last edited by B&W_Evader; 10-09-2017 at 09:05 AM.

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