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aviator_edb

Epoxy on underside of foam

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I've been really picking up steam on chapter 4 and only have the front side of the IP, the landing gear bulkheads and firewall to do.

 

I have a new question. On some of the layups, specifically f-22, 28 and the IP, I had a helluva time keeping excess expoxy from running off and then under the foam. For F-22 and 28 there was only a bit and I easily sanded it off but on the IP I've got a spot that's about 9 sq. in. Do I really need to get that off or can I just rough it properly with 30grit and glass over it?

 

as usual, thanks for any input.

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I've been really picking up steam on chapter 4 and only have the front side of the IP, the landing gear bulkheads and firewall to do.

 

I have a new question. On some of the layups, specifically f-22, 28 and the IP, I had a helluva time keeping excess expoxy from running off and then under the foam. For F-22 and 28 there was only a bit and I easily sanded it off but on the IP I've got a spot that's about 9 sq. in. Do I really need to get that off or can I just rough it properly with 30grit and glass over it?

 

as usual, thanks for any input.

Just get out your FEIN with a sanding head (40 grit), knock off the extra epoxy in a heartbeat. and the resulting surface will be great for further bonding.

 

What you don't have a Fein???????-- Shame on you!!!!!:mad::confused:


I Canardly contain myself!

Rich :D

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I hardshell both sides prior to glassing. End of problem.

 

Foam that has not been sealed with micro can wick up a lot of epozy adding weight. Think of the micro-slurry as you would sanding sealer.

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I hardshell both sides prior to glassing. End of problem.

 

This is not an approved method of building.

I have never done it so proceed at your own risk. If you are slopping on that much resin maybe you need to slow down and be more careful. I like to use my brush and stiple around the edges so I dont have to squeege loads of epoxy off the edges which causes this problem. But like others have said it is no big deal sand it smooth and yes it is comming Build on STeve


Steve Harmon

Lovin Life in Idaho

Cozy IV Plans #1466 N232CZ

http://websites.expercraft.com/bigsteve/

Working on Chapter 19,21

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I hardshell both sides prior to glassing. End of problem.

 

Foam that has not been sealed with micro can wick up a lot of epozy adding weight. Think of the micro-slurry as you would sanding sealer.

hard shell all the parts? you mite end up with a heavy plane that you wont like to fly, have you ever grabed on to the side of a bulk head and tryed to remove the glass ? you mite find its as easy as peep ply.

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I've been really picking up steam on chapter 4 and only have the front side of the IP, the landing gear bulkheads and firewall to do.

 

I have a new question. On some of the layups, specifically f-22, 28 and the IP, I had a helluva time keeping excess expoxy from running off and then under the foam. For F-22 and 28 there was only a bit and I easily sanded it off but on the IP I've got a spot that's about 9 sq. in. Do I really need to get that off or can I just rough it properly with 30grit and glass over it?

 

as usual, thanks for any input.

some of us do it with templets and a router, so all the over-spill is cut off

a fast clean way to do all the bulk heads. no cutting, no sanding,

you do all your fussing with masinit 1/4".

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This is not an approved method of building.

 

This has been discussed at length already. I have it from an engineer at scaled that it's not an issue ........ but we digress.

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some of us do it with templets and a router, so all the over-spill is cut off

a fast clean way to do all the bulk heads. no cutting, no sanding,

you do all your fussing with masinit 1/4".

 

Clean????

 

Been there, done that

 

I'm still pulling the resultant airborne fiber and epoxy dust out of my personal glass.:irked: (I even used a vacuum system directly over the router)

 

a better way is to layup as you would for routing, however use a sharpie to mark actual size and shape or cut out template and glue on cured glass and cut out with metal cutting band saw.

 

The band will last for quite a while, however after the first cut, the blade will be unable to cut metal well.


I Canardly contain myself!

Rich :D

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