ENDOFOAM PHF

Expandable microspheres

Endofoam PHF is a physical foaming agent consisting on hollow polymeric spheres composed of a liquid hydrocarbon encapsulated in a thermoplastic shell. Upon heating, the shell softens and the inside pressure increases leading to the microsphere expansion.

The volume of the microspheres may expand 80 to 100 times and its density after expansion can be lower than 0.03 g/cm3.

Advantages/Benefits:

  • Foaming agent and lightweight filler.
  • Density reduction meaning less quantity of materials required.
  • No emissions or residues during expansion.
  • Prevents shrinkage and warpage in injection moulding.
  • Surface modification achieved by adjusting the amount and size of the added microspheres without affecting the original process.
  • Resilience and compressibility capability.
  • Easy control of foaming process.
  • Compatibility with wide variety of plastics and rubber base materials.

Applications:

  • Synthetic leather
  • Printing ink
  • Coatings
  • Screen printing
  • Shoe material
  • Weather strips

 

The main ENDOFOAM PHF grades of our portfolio are detailed below:

Grades in powder Particle size (µm) T start (°C) T max (°C) Density (Kg/m3) Solid content (%)
ENDOFOAM PHF W130 15 – 25 80 - 90 115 - 130 < 15 70 ± 2
ENDOFOAM PHF W135 15 – 25 90 - 100 125 - 135 < 10 70 ± 2
ENDOFOAM PHF W150 15 – 25 90 - 100 140 - 150 < 15 70 ± 2
ENDOFOAM PHF 150 15 – 25 88 - 96 140 - 150 < 15 > 97
ENDOFOAM PHF 190 15 – 25 120 - 130 175 - 190 < 15 > 97
ENDOFOAM PHF 195S 15 – 25 125 - 145 180 - 195 < 15 > 97
ENDOFOAM PHF 195L 25 – 40 125 - 145 180 - 195 < 15 > 97
ENDOFOAM PHF 200S 20 – 30 120 - 135 190 - 200 < 15 > 97
ENDOFOAM PHF 200M 30 – 40 120 - 135 190 - 200 < 15 > 97
ENDOFOAM PHF 200L 25 – 45 120 - 145 190 - 200 < 15 > 97
ENDOFOAM PHF 230 10 – 30 180 - 200 220 - 230 < 20 > 97

Microspheres Endofoam PHF are available in masterbatch format too.