DT13.00
Revision II
Published on: 01/06/2024

Glass containers - Surface treatment

Scope of application

The application of surface treatment preserves glass strength and improves glass handling throughout manufacture and filling.
The outer surface of a glass container may be treated to reduce friction and to improve resistance to abrasion.
Surface coatings are applied at two stages:
  • Hot-End (metallic oxide deposition): coatings are applied immediately after the container has left the forming machine, and before it enters the annealing lehr.
  • Cold-End (application of a lubrication layer): coatings are applied at the exit of the annealing lehr
The accuracy of the measurement of the surface treatment (particularly the finish) can be affected during the filling and capping process. The details of the measurement methods apply to unused containers only.

Table of contents

1 Scope
2 Definitions
3 Measurement
3.1 Types of tests
3.2 Detailed description of the tests
3.2.1 Prerequisites
3.2.2 Round containers
3.2.3 Non-round containers
3.2.4 Hot-end finish coating
3.2.5 Cold-end coating – body (tilt table)
History
First edition: 04/1992
Revision I: 05/2020
Revision II: 06/2024 - Content improvement, especially modifications on hot-end coating specifications of the finish (Section 3.3.2).

Contributors

ARDAGH GLASS, BA GLASS PORTUGAL, BRITISH GLASS, BUNDESVERBAND GLASINDUSTRIE , CAN PACK, CSVMF, ENCIRC GLASS, GERRESHEIMER BELGIUM, HEINZ GLAS GERMANY, O-I MANUFACTURING FRANCE, O-I MANUFACTURING ITALY, O-I MANUFACTURING UK, SAVERGLASS FRANCE, STOELZLE-OBERGLAS, VERALLIA FRANCE, VERALLIA GERMANY, VETROPACK HOLDING, VIDRALA, WIEGAND-GLASHUTTENWERKE

Document under responsibility of working group:

Glass wg1+4
WG chair: Arnaud JANIN - VERALLIA FRANCE

This permanent group is dedicated to a wide range of topics downstream of the production of glass bottles and jars dedicated to the food and beverage industries:

  • Surface treatments, marking, labelling;
  • Testing methods (impact, headspace, internal pressure, etc.);
  • Nomenclatures (of finishes, jars, bottles, and visual defects, etc.);
  • Quality management (food and beverage safety, best practices, regulations).
Published document
Cover - DT13.00 - Glass containers - Surface treatment

Access to your account

to download the document(s)