_GOTOBOTTOM
General Aircraft: Tips & Techniques
Discussions on specific A/C building techniques.
Casein anybody?
Merlin
Staff MemberSenior Editor
AEROSCALE
#017
_VISITCOMMUNITY
United Kingdom
Joined: June 11, 2003
KitMaker: 17,582 posts
AeroScale: 12,795 posts
Posted: Thursday, April 17, 2014 - 09:07 AM UTC
Hi there

Has anybody tried this? Many of us spend out on epoxy putty etc. to carve patterns - but maybe a cheaper alternative is sitting in the fridge?...

http://www.youtube.com/watch?v=CGxPhW06Jvg

According to Wikipedia, Casein was used for buttons et al in the past, so it should be pretty resilient...

Sheer curiosity dictates I've got to give it a try!

All the best

Rowan
Mcleod
_VISITCOMMUNITY
Alberta, Canada
Joined: April 07, 2010
KitMaker: 1,028 posts
AeroScale: 939 posts
Posted: Thursday, April 17, 2014 - 09:24 AM UTC
That must be one of the vaulted industrial secrets manufacturers don't want us to know about. Wonder how it got out??!! - It's interesting; I'm going to try it on something.

Thanks, Rowan
Antoni
_VISITCOMMUNITY
England - East Midlands, United Kingdom
Joined: June 03, 2006
KitMaker: 574 posts
AeroScale: 573 posts
Posted: Thursday, April 17, 2014 - 09:26 AM UTC

Quoted Text

Hi there


According to Wikipedia, Casein was used for buttons et al in the past,



Thats after it has been treated with formaldehyde. Very nasty stuff. Not something you should do in the kitchen.

http://www.howstuffworks.com/environmental/green-tech/sustainable/5-plastic-substitutes4.htm

What is described is a basic casein glue. All explained here:

http://www.fpl.fs.fed.us/documnts/fplrn/fplrn158.pdf

This is the best bit



It has been found that casein of the very highest grade is not essential for gluemaking. It does not follow, however, that a decidedly inferior casein will yield a high-grade glue; for instance, moth infection may alter the properties of casein to such an extent that water-resistant glues cannot be prepared from the infected material. A casein suitable for gluemaking should have a low fat and acid content, should be free from burnt or discolored particles, sour odor, larvae, maggots, and other extraneous animal matter; and it should be ground fine enough to pass through a 20-mesh sieve.

Try Smart Plastic, bottom of the page.

http://www.deluxematerials.co.uk/pages/latestproducts.htm
Merlin
Staff MemberSenior Editor
AEROSCALE
#017
_VISITCOMMUNITY
United Kingdom
Joined: June 11, 2003
KitMaker: 17,582 posts
AeroScale: 12,795 posts
Posted: Thursday, April 17, 2014 - 10:14 AM UTC
Hi Antoni

So have you tried it? (not the formaldehyde bit, obviously)?

All the best

Rowan
Antoni
_VISITCOMMUNITY
England - East Midlands, United Kingdom
Joined: June 03, 2006
KitMaker: 574 posts
AeroScale: 573 posts
Posted: Thursday, April 17, 2014 - 08:06 PM UTC
Only when I was a kid. Always thought of it as wood glue.
 _GOTOTOP