Purpleheart is a dense, oily wood that can be difficult to glue. October 12, 2008
Does anyone have advice on gluing purpleheart, also known as violetwood? We have tried Excel One polyurethane with little success and suspect a lack of pressure or a burnished joint was the main cause of the failure to glue this very hard and dense timber, however all the information on this species say it is easy to glue.
From contributor C:
I too have had trouble with this problem. I have had success edge gluing panels with yellow glue without mishap, maybe due to the floating nature of a raised panel. But when I glued up mitered cases for jewelry boxes with epoxy and also tried yellow glue, they practically fell apart. It seemed that any exposed end grain cells secreted oil or something to compromise the adhesion. I opted for cross doweled corners with hard maple Miller dowels.
From contributor D:
I've been successful with Titebond III in mortise/floating tenon applications. I've had a lot of problems with purpleheart. It can have a lot of internal stress so I let it sit for a week after it has been jointed/planed. Working with purpleheart requires much patience.
From contributor B:
I've had success gluing purpleheart with a product called Gorilla Glue. Their slogan is "Strongest glue on Planet Earth" and I firmly believe it. Just dampen the wood before gluing. The moisture reacts with the glue, causing it to foam and fill any gaps. The glue can be messy, so don't get too carried away with it. Once the glue sets up it's almost indestructible!
Would you like to add information to this article?
Interested in writing or submitting an article?
Have a question about this article?
Have you reviewed the related Knowledge Base areas below?
KnowledgeBase: Knowledge Base
KnowledgeBase: Adhesives, Gluing and Laminating
KnowledgeBase: Adhesives, Gluing and Laminating: Glues and Bonding Agents
All rights reserved. No part of this publication may be reproduced in
any manner without permission of the Editor.
Review WOODWEB's Copyright Policy.
The editors, writers, and staff at WOODWEB try to promote safe practices.
What is safe for one woodworker under certain conditions may not be safe
for others in different circumstances. Readers should undertake the use
of materials and methods discussed at WOODWEB after considerate evaluation,
and at their own risk.
335 Bedell Road
Montrose, PA 18801
Copyright © 1996-2018 - WOODWEB ® Inc.