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Forum: Composites Fabrication And Repair

05-18-2003, 05:39 PM

Replies: 29

Seal Balsa before applying epoxy ?

Views: 10,679

Posted By probligo

Seal Balsa before applying epoxy ?

Mike,

You are right for a perfectly smooth surface at a microscopic level.

However that is also ( in my case at least) that is an unachievable ideal.

There is a physical bond as well as the...

Forum: Composites Fabrication And Repair

03-21-2003, 12:44 AM

Replies: 29

Seal Balsa before applying epoxy ?

Views: 10,679

Posted By probligo

Seal Balsa before applying epoxy ?

Well, speaking personally Cafeenman, if I can save 5 grams for a 10% strength gain on a 35 gram airframe it is heaven sent.

If I can save 10 grams on a 80 gram airframe...

The need for the...

Forum: Composites Fabrication And Repair

03-18-2003, 11:35 PM

Replies: 29

Seal Balsa before applying epoxy ?

Views: 10,679

Posted By probligo

Seal Balsa before applying epoxy ?

Ben,

I am a pour and wipe practitioner.

Forum: Composites Fabrication And Repair

03-18-2003, 06:26 PM

Replies: 29

Seal Balsa before applying epoxy ?

Views: 10,679

Posted By probligo

Seal Balsa before applying epoxy ?

Kenchoo,

It is not a question of "soaking in" as "having a key to hold".

Go back to my original post, I use dope and then just a quick scuff with sandpaper to remove any "loose" stuff on the...

Forum: Composites Fabrication And Repair

02-28-2003, 12:20 AM

Replies: 29

Seal Balsa before applying epoxy ?

Views: 10,679

Posted By probligo

Seal Balsa before applying epoxy ?

Sportflyer
I need enlightenment (I have never had the difference explained) on the difference between Nitrate and butyrate dope.

I work with "weak dope" which is "strong dope" thinned out...

Forum: Composites Fabrication And Repair

02-28-2003, 12:11 AM

Replies: 29

Seal Balsa before applying epoxy ?

Views: 10,679

Posted By probligo

Seal Balsa before applying epoxy ?

Ben,

It is always nice to be scientific about this. See my earlier post - "I don't know if it has much effect but it makes me feel good."\

Even if there were a scientific/mathematical study...

Forum: Composites Fabrication And Repair

02-26-2003, 09:34 PM

Replies: 29

Seal Balsa before applying epoxy ?

Views: 10,679

Posted By probligo

Seal Balsa before applying epoxy ?

No argument with Ben Diss except...

I have been making a practice of applying 1 coat of 50/50 weak dope and then scuffing the surface fuzz off with #400 w&d. The resulting surface is still...

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