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Adhesives Ingredients
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Adhesives Ingredients
Sealants Channel

Sealants


The main difference between adhesives and sealants is that sealants typically have lower strength and higher elongation than do adhesives. The main objective of a sealant is to seal assemblies and joints. They adhere to the substrates and resist environmental conditions to remain bonded over the required life of the assembly. Sealants contain inert filler material and are formulated with an elastomer to give the required flexibility and elongation. They usually have a paste consistency to allow filling of gaps between substrates.

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Dec 26, 2012 | Article

Limiting Hazardous Materials in PU Adhesives and Sealants

By Edward M. Petrie

This editorial describes recent developments to reduce hazardous components in polyurethane adhesives and sealants. Isocyanates and mercury or lead based catalysts are the primary focus of this...

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Nov 3, 2010 | Article

Sealants Based on Block Copolymers

By Andy Extance

Developments in hydrogenated block copolymers promise to give sealants the balance between durability and conformability that they need. Could block copolymer sealants overcome their also-ran status...

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Aug 1, 2010 | Article

Surface preparation: Adhesives' key ally in composite bonding

Cracks developing in aeroplane wings may sound like the stuff of disaster movies. However, mechanically attaching composites widely used in aerospace, such as fibre-reinforced polymers can lead to...

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Jul 28, 2010 | Article

Functional Silanes as Crosslinkers

By Edward M. Petrie

This article offers a general review of organosilanes as crosslinkers for conventional polymers such as acrylates, polyesters, polyurethanes and polyesters. Innovative crosslinking methods that are...

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Jul 28, 2010 | Article

Green Building Initiatives Spur Growth

By Edward M. Petrie

This editorial summarizes the major trends occurring in green building materials and design. It attempts to determine how these will affect the future of the adhesives and sealants industry and...

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Jun 16, 2010 | Article

New Windows for a Sustainable Building Industry

By Alain Morin

Environmental dimension of sustainability in architecture means the conservation of resources through the optimized use of building materials and products, reducing the need for heating materials...

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Sep 23, 2009 | Article

Butyl Sealant Formulation

By Edward M. Petrie

This article reviews the formulation of butyl sealants for various applications. It will focus on the applications characteristics and performance properties of common butyl sealant formulations...

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May 7, 2008 | Article

Beauty is in the Eye of the Beholder

By Edward M. Petrie

Sealants generally have one requirement that adhesives often do not. This is appearance. Today's editorial looks at the function of appearance or aesthetics when it comes to selecting and applying a...

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Dec 27, 2006 | Article

5 Tips for Selecting an Industrial Sealant

With so many products to choose from, making sure you select the proper sealant is especially important. Selecting the wrong industrial sealant, or applying the correct sealant in the wrong manner...

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Apr 5, 2006 | Article

Sealants Based on Acrylic Emulsions

Since the introduction of waterborne sealants in the 1960s, acrylic emulsion formulations have matured commercially as intermediate performance architectural sealants. Some of the earlier problems...

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