Cleaning Glue Spreaders

      How to maintain glue spreaders for peak performance. May 9, 2001

General Information
Glue mixers and speaders should be thoroughly cleaned at the end of each working day. When mixing and spreading equipment is used for various types of glue, a neutralizing process should be used. This should be followed by a water rinse in all cases.

Three types of neutralizing solutions are commonly used:
Alkaline
One half pound of washing soda or trisodium phosphate dissolved in two gallons of water.

Acid
One cup of vinegar in two gallons of water.

Ammonia
One half cup of household ammonia (approx. strength=5%) in one gallon of cool water.

In all cases, wash spreaders thoroughly with warm water. Tighten doctor roll against rubber roll and fill with neutralizing solution. With glue spreader running, clean grooves with stiff brush. Open doctor rolls and flush with clear water. Remove dams and thoroughly clean. Specific neutralizing solutions: The solutions suggested for the following glue mix changes are:

- Urea resin to casein-Ammonia solution
- Casein to urea resin-Acid solution
- Casein to polyvinyl acetate-Acid solution
- Polyvinyl acetate to casein-Alkaline solution
- Polyvinyl acetate to urea resin (and vice versa)-Alkaline solution
- Phenolic resin to urea resin-Acid solution
- Urea resin to phenolic resin-Alkaline solution
- Polyvinyl acetate to phenolic resin-Alkaline solution
- Phenolic resin to polyvinyl acetate-Acid solution

Caution
The alkaline and acid materials mentioned above may be irritating to skin, eyes, nose and throat. Avoid prolonged or repeated skin contact. Use with adequate ventilation. In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Get medical attention.

This article was provided by Kent Pitcher of Custom-Pak Adhesives, Inc.



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: Adhesives, Gluing and Laminating

  • KnowledgeBase: Adhesives, Gluing and Laminating: Gluing and Clamping Equipment

  • KnowledgeBase: Knowledge Base


    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 © 1996-2016 - 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