Adhesives thumb

Cable Filling Compounds

Cable Filling Compounds thumb

Crack Filler

Crack filler thumb

Cultured Marble

Cultured Marble thumb

Fairing Compounds

Fairing Compound #2 - Boats thumb

Leather Finishing

Leather Finishing

Model Making Board

Model Making Board thumb

Modelling Clay

Modelling Clay thumb

Paints & Coatings

Paints & Coatings thumb

Polyester Putty

Polyester Putty thumb

Porous Ceramics

Porous Ceramics thumb


Sealent thumb

Lightweight Filler, Unique Properties, Surprising Possibilities.

Modelling Clay up close


Discover the different microsphere products we offer and the benefits of using them in different applications.

Our product and application overviews found here may be particularly helpful if you’re new to the world of Expancel® Microspheres.


Knowledge Base

A collection of technical information about Boud Microspheres and Expancel® DET Microspheres.

An in depth look at applications with our recommendations for grades you can use.

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See the grades of Boud Microspheres and Expancel® DET Microspheres we produce, download safety data sheets and technical data sheets. Details about the other forms of Expancel are shown here too.

You can also order samples online and complete our contact form should you have any questions or need help choosing a grade for your application.