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Glass Additives

Industry Overview:

“Glass” is a much more complex substance than it appears at first glance, and it does much more than simply provide a barrier from outside environs while allowing one to see through it – such as in a window. This material has become synonymous with the vessels we drink out of and the lenses we wear in frames to improve our vision. The fiber optic cables that run our computer networks are also composed of glass fibers, no thicker than a strand of hair. Even pane glass windows can be improved with glass additives – these chemicals are needed to create bulletproof glass, beautiful stained-glass mosaics, and two-way mirrors.

The most common glass additives are those which make it efficient to work with. Silica – the base chemical in most glass – has an extremely high melting point, and sodium carbonate must be added to lower this melting point for blowing. Unfortunately, this chemical also causes the glass to become water soluble! Can you imagine if your windows dissolved every time it rained? In order to counteract this side-effect, lime or calcium oxide is added to once again ensure the finished product is not soluble. Other additives include boron, which allows the glass to hold up under extreme temperatures, and lanthanum oxide, which add the light-reflective properties that create high quality lenses.

Common Applications:

  • Silicate glass
  • Glass transition
  • Refining, coating, annealing, cutting, etc.
  • Metallic alloys, polymers, aqueous solutions, etc.
  • Glass batch, linear regression, optimization, etc.
  • Additives – iron oxide, manganese, boron, etc.
  • Aerodynamic levitation, splat quenching, etc.
  • Network formers, intermediates and modifiers
  • Network glasses, amorphous metals, electrolytes, etc.
  • Coloring Strengthening -- thermal, chemical treatments
  • Customized products
  • Nanoparticles
  • Additive manufacturing – 3D printing
  • Recycling – firing agents, antimony oxide, sodium sulfates, etc.


With almost 35 years as a top chemical industry recruitment agency, Ropella is well-versed in the challenges companies face in their search to find highly qualified professionals. As talent acquisition specialists, we excel at attracting, recruiting and building relationships with potential candidates. Our executive search consultants stay abreast of current industry trends making Ropella a knowledgeable, efficient and effective partner for recruiting top chemical talent.

A proven executive search firm, Ropella is dedicated to helping companies gain a competitive advantage by providing customized and strategic talent solutions. We leverage our industry expertise, proprietary smart search system and global network to deliver exceptional results quickly for even the most challenging searches. Successful industry leaders count on Ropella to find the right talent to drive their business forward.

Look for our articles in US Glass Magazine and other industry publications..


The typical positions, roles and/or functions our search consultants serve include:

Sales (such as; new business development, key account management, technical service, customer service, branch, district, region, national, global in scope).
Marketing (such as market research, market analyst, consumer research, public relations, social media, communications, product management).
Manufacturing (such as operations, production, engineering, plant design, process development, pilot plant, scale up).
Research & Development (such as exploratory research, discovery research, synthesis, analytical, applications development, new product development, formulations, compounding, quality control, environmental, regulatory, health and safety).
Administration (such as procurement, supply chain, logistics, human resources).
Business Management (such as general management, executive, manager, director, vice president, c-suite and board member, commercial development, merger, acquisition, joint venture).
Venture Capital / Private Equity (such as administration and finance, commercial development, executive level management, human resources, mfg., marketing, r&d, sales)
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Industry Brochure

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