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Glass Defect Analysis

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SEM Image of a Glass Inclusion DefectAnalysis of a range of solid, gaseous and surface defects and inclusions for all types of glass - from compositional analysis of inclusions, stone, cord, knot, bubbles or blisters to delamination, misting, bloom and assessment of forming defects or quality concerns in finished products. 

Our specialist knowledge in glass and glass development allows us to provide reports for simple compositional data, or full assessment, conclusions and potential causes of glass defects in order to help resolve production issues.

Services can be provided on a standard (10 working days), fast (2-5 working days) or urgent (within 24hrs) basis.

Please contact us, or make an enquiry using the form above, if you have any bespoke requirements, require further information, or would like a quote for analysis.

For further information, please see:

Inclusions, Stone, Cord and Knot

Example of cord in glass

Stone and cord in glass can lead to significant losses in production. Rapid analysis identifies the likely cause minimising production losses. Working closely with the customer GTS can identify the cause of the problem and recommend remedial action. This service is designed for tight production schedules and an express service is available to provide results within a few hours of sample receipt. 

This service is carried out using an extensive range of analytical facilities including optical microscopy and scanning electron microscopy (SEM) with microanalysis (EDS) and can be backed up by wet chemical analysis and other analytical techniques. 

Contamination Analysis

Composition analysis to determine the source of the foreign material to determine remedial action.

Bubble and Blister Analysis

GTS Residual Gas AnalyserWe provide specialist analysis of bubble defects in glass utilising our portable bubble gas analysis system. The equipment can analyse the component gases held within bubbles and blisters.

The occurrence of bubble/blister in glass can lead to significant losses in production. The potential causes of an outbreak are wide ranging. Therefore the identification of gas components and relative pressures can be crucial in determining the possible sources of the bubble/blister and eliminating the problem. 

A portable quadropole mass spectrometer is used to analyse the gaseous components of bubbles. Gases routinely analysed for are: water (H2O), nitrogen (N2), oxygen (O2), argon (Ar2), carbon dioxide (CO2), sulphur dioxide (SO2), carbon oxy-sulphide (COS), hydrogen sulphide (H2S). Analysis for other gases can be performed upon request. This can be provided on a same or next day service, with experienced opinions provided in addition to analytical results. Our focus is to provide rapid analysis either within our laboratories or on-site. 

The service is backed by an extensive range of on-site analytical techniques including scanning electron microscopy (SEM).

This information allows our team to use their specialist knowledge and experience of glass manufacture to determine the likely causes of these defects.

Coatings, Surfaces and Delamination

The surface of glass can be a source of unique and wide-ranging problems and the properties of glass surfaces can be very different to the bulk (glass) properties. This is critical to issues such as adhesion, coatings and durability. We have extensive experience and knowledge in the analysis and understanding of glass surfaces to tackle a range of surface related issues, including:

Forming Defects

Visual assessment, combined with chemical analysis where required, is conducted to identify and assess forming issues for a range of glass products in order to advise clients on remedial action. Please see our visual quality assessment service for further information.

 

Please contact us, or make an enquiry using the form above, if you have any bespoke requirements, require further information, or would like a quote for analysis.

Further Related Services

Composition Analysis

A range of compositional analyses are available for a range of materials, glass samples, defects, inclusions, refractories, dusts and other materials.

Composition Development

Specialist knowledge in glass composition and its resulting optical, thermal and physical properties allow the development of specialist glasses for novel applications, product dev…

Refractory Corrosion and Stabi…

Refractory corrosion, stability and bubble and seed release testing to determine the reliability and compatibility of refractories for different glass requirements.

Technical Consultancy

Our technical experts provide support throughout the glass supply chain - providing clients with market advantage, knowledge and technical input to improve their manufacture, proce…

Visual Quality Assessment

Examination to identify design features, visible defects or imperfections within/on the glass and mechanical damage that might affect performance during use.

Foreign Bodies and Fragments

Identification of the likely source of foreign bodies, contamination or fragments found within a product, or for comparative analysis (e.g. forensic evidence), through a range of a…

SEM-EDS Analysis

GTS provides specialist scanning electron microscopy services to the glass supply-chain.

Failure Analysis

Determining the true cause of failure can help to eliminate future problems and resolve disputes, whether between manufacturer and supplier, or when the end user has experienced gl…


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Case Studies & Projects

Foreign Bodies found within Drinks Bottles

Foreign Bodies found within Drinks Bottles

A number of glass fragments had been reported to be present within two bottles; the brand owner had checked the densities of the fragments and bottles...

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