1. Ireland
  2. All 3M Products
  3. Advanced Materials
  4. Glass Bubbles
  5. 3M™ Glass Bubbles K25 380 kg

3M™ Glass Bubbles K25 380 kg

3M Product Number K253M ID 7000033736
  • Density reduction
  • Higher filler loading feasible and lower VOC for paints and coatings
  • Chemical stability and inertness
  • Temperature resistance
 More
View all details
Product Details

3M™ Glass Bubbles K25 are hollow microspheres made of soda-lime borosilicate glass with a true density of 0.25 g/cm³ and an isostatic crush strength of 750 psi / 52 bar.

This general purpose Glass Bubbles grade was designed for use in a variety of applications such as paints and coating, wall plasters, and polyurethane and epoxy systems for tooling boards. Furthermore, it is suggested to be used in intermediate depth (e.g. up to 5,000 feet / 1524 meters of sea water) buoyancy applications, such as drill riser buoyancy models.

  • Density reduction
  • Higher filler loading feasible and lower VOC for paints and coatings
  • Chemical stability and inertness
  • Temperature resistance
  • Thermal conductivity reduction
  • Thermal conductivity reduction
  • Temperature resistance
Specifications
Capabilities
Chemical Resistance, Lightweighting, Temperature Resistance
Color (unaided eye)
White, powdery
Composition
Soda-lime-borosilicate glass
Density (g/cc)
0.25
Density Range (g/cm3)
0.20 - 0.29
Industries
Construction, Insulation and Buoyancy, Paints and Coatings
Particle Size (D50 Micron)
55
Particle Size Range (D50 Micron)
50 - 59, 50 - 59, 50 - 59
Shape
Hollow spheres with thin walls
Strength (MPa)
5.1