9/28/2020 2:06:25 AM

PVC Additives for Tough Applications

To get the performance required out of your parts, it takes an additive package that meets your demands. Dow Chemical’s full line of Paraloid Impact Modifiers and Process Aids coupled with their technical team can help you achieve the performance needed to make your projects successful.


Paraloid Processing Aids

PVC (polyvinyl chloride) consists of short stiff chains of polymer with low molecular weight. While this provides strong rigidity properties, it can make processing difficult. Dow Chemical’s Paraloid processing aids can help by:

  • Assisting in and controlling fusion along with initial melting
  • Increased melt strength and extensibility
  • Improves homogeneity
  • Enhanced cohesion
  • Prevents melt fracturing
  • Modifying rheology

Paraloid Impact Modifiers

Impact modifiers improve the impact resistance of PVC, reducing the chance for dents or warping. This is particularly important at low or sub-zero temperature. Additionally, Dow Paraloid impact modifiers:

  • Enhance ductility
  • Strengthens the deformation and energy absorbing processes of PVC
  • Blunt growing crazes before they develop into large cracks

A little can go a long way when it comes to processing aids and impact modifiers. They are utilized in 1-6 parts per 100 in PVC formulations.
Below is an example of generic PVC formulation:

Dow Paraloid products are tailored for specific PVC applications. See the chart below for a breakdown of the variety of additives in the Paraloid product line.
Click on the grades to get details on their specific performance properties.

Additive Type
Processing Aids
Process Aid & Impact Modifier
Acrylic Impact Modifiers
Paraloid™ Grade











Window Profiles
Roofing Membranes
Foam Extrusions
Clear PVC Films
Opaque PVC Films
Other PVC Applications

Get a Sample

PHONE  425.372.9464


Hi, let us know if you have any questions as you visit our website.

ChemPoint reps are here to assist you