Veneer Splicer Problems 4: Marking, Grooving, Incomplete Glue Joint

      Troubleshooting checklist for preventing surface defects that may occur during veneer splicing operations. January 4, 2007

Reprinted with permission from Diehl Machines,

Marking of Stock

Indentations left by the serrations in the lower feed chains.

Improper pressure setting.

Reduce the pressure setting.

Incorrect adjustment of the splicer.

Check the adjustment of the lower heater bar, upper heater bar, and the pressure shoes.

Grooving Along the Glue Line

Gouges or indents in the veneer next and parallel to the glue line. Can be either top or bottom face.

Build up of crystallized glue on either the upper heater strip or lower heater bar.

Excessive glue on the veneer is the source of the problem. Clean the upper strip and lower bar. If scraping is necessary use only soft materials such as wood, brass, or bronze. Running a heavy piece of veneer crossways through the splicer will usually clean them.

Nicks or burrs on the upper strip or lower heater bar.

Repair or replace.

Incomplete Glue Joint

The leading end of the veneer is spliced but the trailing end is open.

The edges of the veneer are not parallel.

Check the jointer.

See other articles in this series at:
Burning, Burnishing, Crimping
Poor Jointing, Excessive Glue Spread, Crimping
Blue Staining

Reprinted with permission from Diehl Machines,

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: Veneer

  • KnowledgeBase: Veneer: Processing And Manufacturing

  • Would you like to add information to this article? ... Click Here

    If you have a question regarding a Knowledge Base article, your best chance at uncovering an answer is to search the entire Knowledge Base for related articles or to post your question at the appropriate WOODWEB Forum. Before posting your message, be sure to
    review our Forum Guidelines.

    Questions entered in the Knowledge Base Article comment form will not generate responses! A list of WOODWEB Forums can be found at WOODWEB's Site Map.

    When you post your question at the Forum, be sure to include references to the Knowledge Base article that inspired your question. The more information you provide with your question, the better your chances are of receiving responses.

    Return to beginning of article.

    Refer a Friend || Read This Important Information || Site Map || Privacy Policy || Site User Agreement

    Letters, questions or comments? E-Mail us and let us know what you think. Be sure to review our Frequently Asked Questions page.

    Contact us to discuss advertising or to report problems with this site.

    To report a problem, send an e-mail to our Webmaster

    Copyright © 1996-2021 - WOODWEB ® Inc.
    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.

    WOODWEB, Inc.
    335 Bedell Road
    Montrose, PA 18801

    Contact WOODWEB

    WOODWEB - the leading resource for professional woodworkers

      Home » Knowledge Base » Knowledge Base Article