Koattro PB M 8510M



Polybutene-1 grade Koattro PB M 8510M is a random copolymer of butene-1 with high ethylene content.

Koattro PB M 8510M is primarily used as a blend component in woodworking and assembly hot melt adhesive formulations. It can be used in combination with a wide variety of non-polar resins and waxes and maintains good cohesive strength of the HMA and higher Shear Adhesion Failure Temperature (SAFT).
Koattro PB M 8510M is also used to improve rheological properties in blends. It is highly compatible with polypropylene due to its similar structure. Koattro PB M 8510M is less compatible but still easily dispersible in blends with polyethylene. Its relatively slow kinetics of crystallization allow for an excellent wetting behavior. Its high shear-sensitive flow behavior means that it remains easily dispersible also in even more incompatible polymers like thermoplastic elastomers.

Koattro PB M 8510M can also be used in Spunbond applications offering reduced bonding temperature.


Africa-Middle East, Asia-Pacific, Australia and New Zealand, Europe, North America, South & Central America


SDS - Safety Data Sheet
PSB - Product Stewardship Bulletin

Product Data and Technical Information

Typical Properties

Melt Flow Rate (190 °C/2.16 kg) 45 g/10 min
Density 0.897 g/cm³
Brookfield Viscosity (190 °C) 230600 mPa∙s
Flexural Modulus 120 MPa
Tensile Strength at Break 25 MPa
Tensile Elongation at Break 300 %
Melting Temperature Tm1 94 °C
Melting Temperature Tm2 81 °C

Technical Data Sheet

Technical Data Sheet


Continuous Filament/Spinning, Fibers, Spunbond, Staple Fiber




Hot Melt Adhesives, Hygiene Nonwoven, Polymer Modifier