Glass Bubbles

The Light Weight Filler

3M hollow micro glass bubbles are used in both coating and polymer applications. Manufactured to a tight specification resulting in a tough spherical hollow glass bubble capable of withstanding temperatures of 1000’C. The standard particles are white in colour and sizes vary from 20 microns to 115 microns with typical densities start at 0.6 g/cm3 and go as low as 0.12 g/cm3 with crush str...    Read more  


3M hollow micro glass bubbles are used in both coating and polymer applications. Manufactured to a tight specification resulting in a tough spherical hollow glass bubble capable of withstanding temperatures of 1000’C. The standard particles are white in colour and sizes vary from 20 microns to 115 microns with typical densities start at 0.6 g/cm3 and go as low as 0.12 g/cm3 with crush strengths ranging from 28,000 psi (for 0.6g/cm3) down to 250 psi. They provide the user with approximately 20 different grades to consider for projects.

The high strength to density ratios are possible for injection moulding and extrusion applications. This can also result in more economical parts being produced which are still functional and fit for purpose. Floated glass bubbles are also available for more demanding low density/high strength applications in marine, aerospace and military use.

In addition 3M have developed coated grade-mainly with silanes – to improve properties further. 



Reduce text  


Features


    • Light weight with densities varying from 0.12 to 0.6

    • High strength to density ratio.

    • Spherical shape

    • Chemically stable

    • High filler loading possible and easy to disperse

    • Lower thermal conductivity

Benefits


    • Reduce the density of a polymer or coating

    • Lower viscosity meaning easier flow

    • Improved insulation properties

    • Replacement of resin in polymers and coatings

    • Reduced cycle times in injection moulding applications

    • Reduced VOC’s in coatings

Typical Applications


    • Light weight composites

    • Light weight polymer mouldings and extrusions

    • Paints and coatings

    • Potting compounds

    • Polyurethanes

    • Syntactic foams

Related downloads

3M General Brochure Brochure /

pdf

 /

1.18mb



     

Newsletter signup

Receive newsletters that are on interest to you by signing up and selecting your Area of Interest. We'll never give out your details.

     

Speak to a expert

If you'd like to discuss any of our products in more detail, please give us a call and we'll get you through to the right person.