Features Forums 101 W H T C O F
Post ResponseRETURN TO INDEX<PreviousNext>
Hand Tools
Testing liquid hide glue
Posted By Bill Tindall, E.Tn.
Date Wednesday, 9 February 2022, at 11:54 a.m.

Bill Tindall, E.Tn.
To make a strong bond the glue must be tough, not brittle. High molecular weight polymers are inherently tough because the molecules are extremely long and entangled. Hide glue is tough because the protein is high molecular weight. Degraded means the molecular weight has lessened, lessening entanglement, leading to brittle.

Dry a thin film and flex it. If brittle its dead.

To spin a thread from a polymer solution the polymer must be high molecular weight. Rub hide glue between finger and thumb, then separate and try to pull strands of "fiber". If you can't pull long strands the glue molecular weight had lessened. Test with a fresh bottle to get calibrated.

 
  

Post Response

Your Name
Your E-Mail Address
Subject
Message
If you'd like to have the option of deleting your post later, please provide a password (CASE SENSITIVE!):
Password
 If you'd like e-mail notification of responses, please check this box
Accept Terms of Service

 

Please read Terms of Use before posting

Post ResponseRETURN TO INDEX<PreviousNext>

Sponsors

Lee Valley
Dedicated to finding and developing the best tools in the industry.
WoodCraft
One of the nation's oldest and largest suppliers of quality woodworking tools and supplies.
Woodfinder
Support Us

Advertise Here

Support Us Advertise Terms Privacy DMCA Help Home

Copyright © 1998-2022 by Ellis Walentine. All rights reserved.
No parts of this web site may be reproduced in any form or by any means without the written permission of the publisher.

WoodCentral · POB 274 · Coopersburg PA 18036 USA