Sealants in Construction: 2nd Edition (Hardback) book cover

Sealants in Construction

2nd Edition

By Jerome Klosowski, Andreas T. Wolf

CRC Press

406 pages | 243 B/W Illus.

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pub: 2015-11-03
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Revised Bestseller Offers Broad-Based Knowledge to a Wide Range of Technical Professionals

The definitive guide to sealing operations in construction, this latest edition of Sealants in Construction focuses on the most current technology, methods, applications, and standards relevant to sealant performance. Providing guided direction on how to choose and apply sealants, determine the properties of those sealants, and test and establish the cause of sealant failures, it addresses the design and engineering of structurally glazed systems and the chemistry and properties of various generic types including silicones, hybrids, and urethanes.

Divided into two parts, the book first covers basic topics relevant to the practical side of construction sealants, and is geared toward those interested in choosing the proper sealant. The second half introduces advanced topics that are more technical, includes historical context along with practical examples, and is directed toward anyone requiring more depth in these areas.

An indispensable resource essential to your collection, this book:

  • Explains the proper way to test sealants
  • Evaluates standard test methods that are used with construction sealants
  • Provides examples of emerging test methods appropriate for use with construction and highway sealants
  • Outlines methods for calculating the required joint sizes in conventional sealing, glazing, and structural glazing
  • Details the composition of the most popular types of sealants and hybrids

Sealants in Construction covers the use of sealants in the construction industry and aims for the increased use of nondestructive test methods for all sealant applications and a more integrated quality management approach to sealing operations. This book is of interest to architects, contractors, engineers, sealant manufacturers, and students, and is relevant to a variety of technical disciplines.


"… the most comprehensive work on sealants that will be ever produced."

—Chris White, Research Chemist

"… the most comprehensive and current state of the art knowledge accumulated on performance sealants in the commercial building and façade industry."

—Lawrence D. Carbary, Dow Corning Corporation, Midland, Michigan, USA

"This book has been written by two of the most experienced and respected scientists in the business. It contains the lifetime knowledge not just of Jerome and Andreas, but of numerous other technologists that they have encountered during their professional careers. … The combination of historical background, changes in requirements for sealants and technical progress in development and manufacturing, are excellent… It should provide an up-to-date reference of tremendous value to construction professionals. Architects, engineers, specifiers, polymer technologists and academics will find this book of enormous value."

—Professor Allan Hutchinson, Oxford Brookes University, UK

"… the most current comprehensive book on sealant technology, practical application and performance of sealants in the building industry today."

—Lawrence D. Carbary, Dow Corning Corporation, USA

"Jerry Klosowski and Andreas Wolf have put together the most comprehensive volume on sealants. These two giants of the sealant industry have personally witnessed and participated in the vast majority of the topics covered in this book. The attention to detail and comprehensive nature of this book is based on shared memories of watching or participation in the developments."

Chris White, Research Chemist

Table of Contents

Introduction to Sealants and a Short History of Sealant Development


Early Sealants Based on Natural Materials

Modern Sealants Based on Synthetic Polymers

Outlook on Future Developments



Jerome Klosowski

Selecting Joint Sealants


Calculating Joint Movement

Joint Sizing in New Construction

Remedial Sealing


Chemical Environment

Service Temperature

Intensity of Sun and Weather

Application Conditions

Other Considerations


Sealant Properties

Adhesion and Cohesion



Stress Relaxation

Compression Set

Resistance to Weathering


Sealant Specifications and Testing


Expansion and Construction Joints

Idealized Construction Sealant Specification

Conclusions on Testing Building Sealants

Highway Sealants

Conclusions on Tests for Traffic and Pedestrian Sealants

Color and Stain Tests

Tensile-Adhesion Test

Compatibility Tests: Corrosion and Stress Corrosion

Compatibility-to-Gasket Test

Field Test for Adhesion

Adhesion Test for Job


Application of Joint Sealants


Examining the Joint

Joints Larger Than Planned

Joints Smaller Than Planned

Cohesive Failure

Measuring Joint Width

Joint Movement Indicator (Scratch Test)

Adhesive Failure

Field Adhesion Test

Cleaning Common Substrates


Backer Rods and Bond Breakers

Backing Materials

Correcting for Improperly Sized Rods

Backing as a Flame or Fire Retardant


Sealant Installation

Tools and Skills of the Mechanic

Joint Movement during Cure


Dirt Pickup




Inspection and Investigation

Further Analysis



Andreas Wolf

Classification of Construction Sealants


Product Form

Setting Mechanism and Its Effect on Mechanical Properties

Chemical Nature of Binders and Cure Types




Overview on Sealant Types and Families


Rigid Sealants (Putties)

Cold-Applied Plastic Sealants (Caulks)

Hot-Applied Plastic or Elastic Sealants

Elastic High-Performance Sealants


Conventional High-Performance Sealants

Water-Borne (Latex) Acrylics





Hybrid (Silane-Modified) High-Performance Sealants

Silane-Terminated Polyethers

Silane-Terminated Polyurethanes

Silane-Terminated Polyacrylates


Sealed Insulating Glass and Insulating Glass Sealants

Historical Development of Sealed Insulating Glass

Functions of the Edge Seal

Environmental Degradation Factors Acting on the IGU and the Edge Seal

Diffusion Mechanisms Affecting Sealed IG Performance

Important Degradation Mechanisms Affecting the Functioning of the Edge Seal

Durability Testing of Sealed IGU

Properties of IG Sealants and Resulting Applications for IG

Importance of IGU Workmanship in Successfully Passing EN1279 Performance Testing

Design, Component, and Workmanship Considerations in the Manufacture of High-Quality, Long-Lasting IGUs



Structural Sealant Glazing

History of Structural Silicone Glazing Curtain Walls

Classification of Structural Silicone Glazing Systems

Stresses Acting on Structural Silicone Glazing Sealants

Standards and Specifications

Structural Joint Detailing

Structural Glazing Sealants

Structural Silicone Point Fixing

Roles of Major Participants in Value Chain

Quality and Reliability Considerations



Structurally Bonded Windows


Historical Development

Benefits of Direct Window Glazing

Glazing and Bonding Options

Structural Sealants

The Bonded Window as a System: Durability and Compatibility


Integrated Sash Direct Glazing

Summary and Outlook



About the Authors

Jerome M. Klosowski received his master’s degree in mathematics from Central Michigan University, Mount Pleasant, Michigan, in 1965; received a master’s degree in chemistry from Wayne State University, Detroit, Michigan, in 1966; and did postgraduate work in chemistry at the University of Michigan, Ann Arbor. He authored the book Sealants in Construction and edited two other books. He holds 34 U.S. patents (multiple foreign filings); has published more than 70 articles in scientific and trade journals and four chapters in various encyclopedias, and has lectured on the chemistry and engineering of sealants in construction around the world.

Andreas T. Wolf received his Ph.D. degree in chemistry from Heine University in Düsseldorf, Germany, in 1978 and was associated with Dow Corning from 1979 to 2015, where he held various managerial and professional positions within the science and technology department. He is the editor of 10 published books and the author of numerous scientific and technical publications and presentations within the realms of sealant chemistry, formulation, application, durability and degradation mechanisms, adhesion theory and measurement, and standardization. He retired from Dow Corning in 2015 and is currently teaching and consulting worldwide in the areas of sealant chemistry and applications.

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