liquid polybutadienes from Evonik
With POLYVEST® we offer a range of stereospecific, low viscous and unsaponifiable liquid polybutadienes with different chemical compositions.
Based on their characteristic microstructure, all POLYVEST® grades exhibit excellent reactivity and can be used for a broad variety of applications, e.g. in the automotive, construction and electronics industry.
The unsaturated polymer backbone of our liquid polybutadienes offers the opportunity for various crosslinking options, like sulfur curing and oxidative drying. Our functionalized POLYVEST® grades provide further options for crosslinking and additional benefits.
Product portfolio liquid polybutadienes
Our POLYVEST® product portfolio consists of the following grades:
POLYVEST® EP MV
POLYVEST® MA 75
POLYVEST® ST-E 60
POLYVEST® EP MAT
Key benefits of POLYVEST® liquid polybutadiene grades
- Low viscosity
- Excellent chemical resistance to acids and bases
- High water resistance
- Excellent electrical insulation properties
- Low temperature flexibility
- Low moisture and oxygen permeability
Markets & Apllications for our liquid polybutadienes
POLYVEST® is used in adhesives and sealants for head lamps, sound damper and body & paint shop applications. Additionally, our liquid polybutadiene is added to green tire formulations as reactive plasticizer and substitute for TDAE oil.
POLYVEST® grades are used in secondary sealants for window glazing, in binder of dusty and dry quartz sand as well as in binder for soil stabilization. Moreover, POLYVEST® can be added as modifier to silicone sealants.
POLYVEST® can be used as binder in PU formulations regarding electrical insulation and potting compounds. POLYVEST® MA can substitute isocyanates and act as isocyanate-free hardener.
Printing and inks
POLYVEST® is employed as reactive plasticizer for flexo printing plates and as pigment wetting agent for offset printing inks.
POLYVEST® is used as a binder for recycled rubber compounds, modifier in carbon black filled EPDM compounds and as plasticizer in rubber compounds.
In the plastics industry, POLYVEST® acts as additive for PU foams, either as cell opener or as release agents.
POLYVEST® HT-A is used as a binder in solid rocket propellants. The liquid polybutadiene reacts with isocyanates to form the necessary urethane network.
Sustainability & POLYVEST® liquid polybutadienes
We have a strong focus on sustainability – both regarding our products (Footprint) but also the applications they are used in (Handprint).
The following POLYVEST® grades are available as POLYVEST® eCO:
- POLYVEST® eCO 110 Bio
- POLYVEST® eCO 130 Bio
- POLYVEST® eCO 130 S Bio
- POLYVEST® eCO MA 75 Bio
- POLYVEST® eCO HT Bio
- POLYVEST® eCO ST-E 60 Bio
For improving the footprint, we use raw materials from alternative sources and offer a drop-in solution with a lower carbon footprint. More about our sustainable POLYVEST® eCO for adhesive and sealant applications.