Laminar Glass Bonding - Simple, Efficient and Safe Glass in overhead applications is most often laminated and requires either visible point fixings or continuous edge support, both of which may perturb the uniform glass surface envisioned by the architect. In response, Sika and sedak together developed a novel laminated composite system which combines a monolithic glass panel, a layer of self-levelling silicone adhesive — Sikasil® GS-687 — and a load transferring perforated metal panel. Utilizing this laminar silicone system has made it possible to install glass in overhead situations as well as in vertical details (e.g. spandrels and glass walls) without any visible mechanical fixings, thus creating large, even, opaque glass surfaces. Furthermore, this system, in a recent project, made it possible to achieve a weight reduction of 30 % when a PVB-laminated safety glass system composed of 2 x 12 mm thicknesses was replaced by a laminar composition system comprising a 10 mm thick glass panel, a 6 mm thick layer of silicone and a 3 mm thick aluminum back sheet.

1. THE LATEST DEVELOPMENTS IN
GLASS BONDING
EVENT: TOP GLASS 2016, TORONTO
PRESENTER: WERNER WAGNER
DATE: APRIL 20, 2016
14 m3.20 m

2. GLASS BONDING:
THE TRADITIONAL WAY…
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3. 3
OPTION 1: CLASSIC MECHANICAL POINT FIXATIONS
Top Glass 2016: Glass Bonding20-Apr-16
Source: www.prisma.ae

4. 4
OPTION 2: BONDED POINT FIXINGS
Top Glass 2016: Glass Bonding20-Apr-16
Jaume Plensa: BBC Sculpture (by Tuchschmid, CH)

5. 5 Top Glass 2016: Glass Bonding
OPTION 3: LINEAR BONDED FRAME FIXATIONS
20-Apr-16
Classic Structural Glazing

6. THE CHALLENGES
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7. 7
SLOPED AND OVERHEAD APPLICATIONS
Top Glass 2016: Glass Bonding20-Apr-16
 Sun Shades, for
example:
 4.5 ton curved sun
shade element
 How to affix to the
facade?

8. 8 Top Glass 2016: Glass Bonding
STRUCTURAL GLAZING AND HIGH-STRENGTH GLASS BONDING
20-Apr-16

9. GLASS BONDING: THE NEW WAY…
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10. 10 Top Glass 2016: Glass Bonding
OPTION 4: LAMINAR SILICONE BONDING
Metal sub-frame (back-sheet)
Self-levelling Silicone
Monolithic glass pane
20-Apr-16

11. 20-Apr-1611 Top Glass 2016: Glass Bonding
OWNER’S AND ARCHITECTS’ REQUESTS
 Largest glass panes available (14 x 3.2 m)
 Opaque glass surfaces
 Specific white color (CI)
 No visible fittings, uniform appearance
 Automated production (65,000 m2)
The above, along with various fixing technologies, and the evolution of
laminar silicone glass bonding, will be discussed by Dr. Werner Wagner next
month…

12. 20-Apr-1612 Top Glass 2016: Glass Bonding
SEE YOU AT “TOP GLASS” APRIL 20TH…
Dr. Werner Wagner has been active in the glass
and façade business for 20 years. With a
chemical and technical background he
established the technical services of Wacker-
Chemie (Germany) for façade projects and was
also responsible for product development of
silicone sealants and adhesives, gaining broad
experience in project management and
marketing. When Sika Switzerland acquired
Wacker’s façade silicone business in March
2004, he joined Sika and is not only
responsible for the marketing department of
Sika Façade Systems but also for the business
development in the Asian façade market. He is
author of several papers about sealing and
bonding in façades and has attended countless
conferences as a speaker and chairman.

13. In our Façades, Fenestration and Insulating Glass business unit, Sika has developed a wide range of
technologies and products designed to help customers achieve faster production, reduce material
costs, introduce innovative designs and improve product performance. Selecting the correct sealant
or adhesive to meet a specification is a critical and a necessary step in the range of services offered
by Sika.
We offer:
 Systems Engineers who collaborate with leading façade, window and insulating glass
manufacturers to advise on how to optimize the product application to achieve flawless integration
and optimum production processes.
 Technical Services staff work to deliver proven solutions and to document the performance of all
recommendations. We realize that the product is only part of the total solution and our field
experts are available around the world to coordinate the wider project, ensuring that all the
products show excellent long term compatibility with each other.
As part of the SikaSmart Building Envelope Team, our field experts can assist with coordinating your
total project needs, from roof to foundation with a wide range of solutions including roofing, concrete
admixtures, liquid or sheet applied waterproofing, coatings, adhesives and sealants. We coordinate
compatibility and offer comprehensive warranty packages to facilitate your design objectives while
helping protect owner investments, all backed by a century of technical experience in enhancing a
structure’s appearance and extending it’s life.
20-Apr-1613 Top Glass 2016: Glass Bonding
SIKA AND THE FENESTRATION INDUSTRY