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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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Jul 13, 2005 | Article

The Rheological Evaluation of Sealant Materials

Fillers are used in sealant products to reduce the cost of materials, and to act as both a rheology modifier and reinforcement agent. Many materials are used as fillers and differ in both...

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Jan 5, 2005 | Article

How Sealants Function

Sealants are generally chosen for their ability to fill gaps, resist relative movement of the substrates, and exclude or contain another material. Sealants are generally lower in strength than...

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Nov 24, 2004 | Article

The Global Adhesive and Sealant Market

Worldwide, the adhesive and sealant market grew 3% in 2003 over 2002 in spite of the economic recession affecting industrialized markets in North America, Japan and Western Europe. Contributing to...

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Jun 30, 2004 | Article

Form-in-Place Gaskets

Gaskets play an important function in a variety of products from automobile engines to electronic housings. Gaskets are generally required to seal against outside elements and to prevent fluid...

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Feb 11, 2004 | Article

Adhesive and Sealants in the New Alternative Energy Market

Seldom does a completely new market erupt where adhesives and sealants can play a critical part. Adhesives and sealants are necessary components in the wind turbines, photovoltaic modules, and fuel...

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Sep 17, 2003 | Article

Nanomaterials in Adhesives and Sealants

There has been much discussion recently of nanotechnology and how it may revolutionize the chemical industry and provide advanced products as diverse as automotive and aerospace components...

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Jun 18, 2003 | Article

Novel Thermoplastic Polyurethanes for Adhesives and Sealants

Thermoplastic polyurethanes (TPUs) are formed by linear polymeric chains of segmented structure. They are prepared by the addition reaction of difunctional isocyanates, chain extenders and...

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Jun 11, 2003 | Article

Sealant Products and Markets Look to Accelerate

By Edward M. Petrie

Sealants have grown in sophistication in recent years with the increase of demand in markets and emergence of new materials. This editorial outlines some of the recent activities in this area...

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Apr 7, 2003 | Article

Improving the Low Temperature and Temperature Cycling Properties of Adhesives and Sealants

Many applications for adhesives and sealants require high strength and durability at low temperatures. Many of these same applications also require resistance to thermal cycling between high and low...

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Dec 18, 2002 | Article

The Ravages of the Environment

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