PVC Additives / Impact Modifiers
PVC Impact Modifiers — ACR Range
Core-shell acrylate copolymer produced in China to CIVAL specification. The range combines impact modification and processing improvement in a single addition, and is formulated for outdoor service where weathering and surface finish are part of the specification.
The range
ACR impact modifier range
Two published ACR grades, both white free-flowing powder, supplied against declared apparent density, volatile matter and sieve residue. Each shipment carries a lot-level Certificate of Analysis.
Where chlorinated polyethylene is the preferred modifier for cost-driven rigid formulations, see our CPE range.
Performance
Performance profile
What the ACR chemistry delivers on a rigid PVC line.
Impact with weatherability
High impact strength retained under outdoor exposure — suited to outdoor profile and sheet.
Broad processing window
Stable behaviour on high-speed extrusion lines, with tolerance to normal process drift.
Low thermal shrinkage
Supports dimensional stability of the finished part after the line and in service.
High corner weld strength
Welded window and door profile corners hold their specified strength.
Surface gloss & machining
Good surface finish and clean machining behaviour on the fabricated part.
Specification
Technical data
| Grade | Appearance | Apparent density (g/cm³) | Volatile matter (%) | Residue on 30-mesh sieve (%) |
|---|---|---|---|---|
| CV-IM-701 | White powder | 0.45 ± 0.10 | ≤ 1.3 | ≤ 2.0 |
| CV-IM-702 | White powder | 0.45 ± 0.10 | ≤ 1.3 | ≤ 2.0 |
Figures are specification limits. Actual lot values are stated on the Certificate of Analysis supplied with each shipment.
Applications
Typical fields of use
Window and door profile, special profile, non-transparent sheet and plate, pipe and fittings, and other rigid PVC parts where impact performance must survive outdoor exposure.
Supply
Packaging & storage
| Bag | 20 kg / 25 kg PP valve bag with liner, or kraft paper bag |
| Bulk | 500 kg / 1000 kg jumbo bag |
| Pallet | Fumigation-free pallet |
| Shelf life | 24 months, stored cool and dry in unopened packaging |
Grade library
Available grades
Published with full specification, packing and documentation details.
ACR Impact Modifier
Supplied against a declared intrinsic viscosity and molecular weight, with a lot-level Certificate of Analysis on every shipment.
View grade › CV-IM-702ACR Impact Modifier
Supplied against a declared intrinsic viscosity and molecular weight, with a lot-level Certificate of Analysis on every shipment.
View grade ›Support
Technical support
Grade matching, formulation optimisation and line-trial support are available through our technical desk. Send your current recipe and your processing conditions and we will propose a starting formulation before you commit to a container.
Send your specification.
Tell us your part, your line and your impact target — we come back with a grade, a dosage and a landed price.