Technical datasheet

3M™ Glass Bubbles K46

Supplied by3M- Last Updated on May 8, 2025

3M™ Glass Bubbles K46 by 3M is a high strength soda-lime-borosilicate glass filler. Exhibits chemical inertness, exterior solar reflectivity, low thermal conductivity, low dielectric constant and easier washability. Offers uniform sheen, high-build, low-slump, higher filler loading, reduced gloss, shrinkage and warpage. Shows chemical-, water-, abrasion-, scrub and burnish resistance. Recommended for oil & gas outdoor storage tanks, cryogenic tanks & tankers and gel coats for boat cabins. It has low alkalinity, low density and lower film permeability. It improves opacity, viscosity, flow, levelling and sprayability. 3M™ Glass Bubbles K46 is also used in solar reflective coatings for roofs, exterior walls, mobile phones, caravans, refrigerated storage warehouses and refrigerated trucks. It is a non-combustible and non-porous grade. Applicable for architectural, anti-condensation and industrial paints & coatings like maintenance coatings for bridges, truck under-carriages & other exposed metal structures and epoxy floor coatings.
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3M™ Glass Bubbles K46 properties

Other properties

PropertiesValue & unitTest conditionTest method
Alkalinity0.0 Visible After LoginVisible After LoginVisible After Login
Density, True0.0 Visible After LoginVisible After LoginVisible After Login
Dielectric Constant0.0 Visible After LoginVisible After LoginVisible After Login
Floaters0.0 Visible After LoginVisible After LoginVisible After Login
Fractional Survival0.0 Visible After LoginVisible After LoginVisible After Login
Oil Absorption Number (OAN)0.0 Visible After LoginVisible After LoginVisible After Login
Particle Size Distribution0.0 Visible After LoginVisible After LoginVisible After Login
Particle Size Distribution, D100.0 Visible After LoginVisible After LoginVisible After Login
Particle Size Distribution, D900.0 Visible After LoginVisible After LoginVisible After Login
Particle Size Distribution, Median0.0 Visible After LoginVisible After LoginVisible After Login
Target Crush Strength0.0 Visible After LoginVisible After LoginVisible After Login
Target Fractional Survival0.0 Visible After LoginVisible After LoginVisible After Login
Test Pressure0.0 Visible After LoginVisible After LoginVisible After Login
Thermal Conductivity0.0 Visible After LoginVisible After LoginVisible After Login
Volatile Content0.0 Visible After LoginVisible After LoginVisible After Login

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