PVC resin

Product Overview

General Description

PVC resin, polyvinyl chloride, has four variants depending on its polymerization process: suspension, bulk, emulsion, and solution. In this product portfolio, we offer the two most commonly used types on the market: suspension resin and emulsion resin. Suspension resin is characterized by porous particles ranging in size from 50 to 250 microns, with an irregular appearance. Through the mixing process, it adsorbs additives that modify its properties. This suspension resin is used within a K-value (or molecular weight) range of 56 to 70, with the specific grade required depending on the manufacturer's needs. It is important to note that these resins, which can be used for rigid or flexible PVC, are processed by extrusion, injection molding, or calendering.

Unlike suspension resin, emulsion resin is a much smaller particle, between 1 and 5 microns, with a plate-like appearance, very low porosity, and a molecular weight (or K value) range of 62-78 K. This resin also undergoes a mixing process, but the difference is that adsorption does not occur; instead, a paste or plastisol is obtained. These resulting mixtures are processed using very different methods than suspension resin, such as rotational molding, knife coating, or dipping. Although some of the additives we offer here work for both types of resins, it is important to clarify what type of product you want to manufacture and seek advice on the optimal processing method.

Suspension Resin

K 63 PVC resin

K 63 PVC resin is a suspension-formed PVC homopolymer with a K value between 62 and 64, making it suitable for a wide range of applications. It can be formulated for both rigid and semi-rigid products, and also supports flexible applications with limited use of plasticizers. Its main uses include:

Rigid: Construction profiles, pipes, gutters, extruded or calendered sheets.
Flexibles; Hoses, gaskets, injection-molded parts.

It is characterized by its good transparency, low yellowing index and low gel content.

K 61 PVC resin

K 61 PVC resin is a suspension PVC resin with a K value of 60 to 62, corresponding to a medium/low molecular weightThis characteristic gives it excellent processability and flow, making it especially suitable for semi-rigid, rigid and flexible (limited) applications, suitable for use in thermoformable calendered sheets, plastic cards, molded lids and containers, and in flexible products such as calendered films, coatings, soles, low voltage electrical cables, flexible hoses.

K 58 PVC resin

K 58 PVC resin is a low molecular weight, suspension-type PVC homopolymer suitable for rigid applications. It is a low-gel resin with exceptional thermal stability and good flowability. These properties make it a standard resin for any rigid formulation. It is suitable for processes such as injection molding, calendering, and tubular extrusion. Applications include rigid film, bottles, and rigid profiles.

K 70 PVC Resin

K 70 suspension PVC resin is a high-porosity grade, making it an excellent choice for flexible applications. It is a high molecular weight PVC homopolymer, a high-density resin specially designed for improved flow and suitable for extrusion processes. In addition, this product offers:

Excellent electrical properties
Low gel content.
Excellent heat stability.
Good finish on the final product.

Suggested applications include: flexible extrusion, wire, cable, mats, food film, and toys.

PVC resin K 68

PVC K 68 resin is a PVC homopolymer, or medium/high molecular weight suspension resin, suitable for flexible or rigid applications. It is a low-gel resin and is recommended for general extrusion. Its good porosity allows it to properly adsorb additives added during the mixing process. Suggested applications include flexible packaging, cable sheathing, channels, pipes, and toys.

PVC resin K 56

PVC K 56 resin is a low molecular weight PVC homopolymer, or suspension resin, suitable for rigid applications. It is a low-gel resin with good thermal stability. These properties make it a standard resin for any opaque or transparent formulation. Suggested applications include injection molding, rigid calendering, bottles, and flooring.

Emulsion Resin

K76 PVC resin

PVC K76 resin is a medium molecular weight micro-suspension homopolymer. It is used to produce plastisols or pastes that exhibit low viscosity at low shear rates and slight expansion at high shear rates in formulations with low to medium plasticizer dosages (40–60 phr). Plastisol made from this polymer offers a high-clarity, high-gloss surface finish, low water absorption, good electrical resistance, good air release, and a low gel temperature. It also exhibits good thermal stability and lightfastness when used with various heat stabilizers, as well as good mechanical properties. When left to stand or with a long shelf life, its viscosity increase over time is low, as is its tendency to settle.These plastisols are suitable for solid spread coatings, especially transparent coatings with low plasticizer content and where high mechanical properties are required. Due to their low viscosity, they are ideal for all types of coatings and for rotational molding, dip coating, and casting processes. Some applications include synthetic leather, coated fabrics, boots, car armrests, and interior parts for motor vehicles requiring high resistance to mechanical wear.

K71 PVC Resin

PVC K71 resin is a medium molecular weight micro-suspension homopolymer. It is used to produce plastisols or pastes that exhibit low viscosity at low shear rates and slight expansion at high shear rates in formulations with low to medium plasticizer dosages (40–60 phr). Plastisol made from this polymer offers a high-clarity, high-gloss surface finish, low water absorption, good electrical resistance, good air release, and a low gel temperature. It also exhibits good thermal stability and lightfastness when used with various heat stabilizers, as well as good mechanical properties. When left to stand or with a long shelf life, its viscosity increase over time is low, as is its tendency to settle.These plastisols are suitable for solid spread coatings, especially transparent layers with low plasticizer content and where high mechanical properties are required. Due to their low viscosity, they are ideal for all types of coatings; these plastisols can be applied directly or during the spread transfer coating process, which includes drum gelation. This resin is also suitable for rotomolding, dip molding, or pour molding. The main applications are spreadable coatings with low plasticizer content, wall coverings, synthetic leather, and coated fabrics. The rotomolding process is used to produce boots, shoes, car armrests, and interior parts for motor vehicles.

K69 PVC resin (M3090)

EM 3090 is a medium molecular weight PVC emulsion resin with a fine particle size. Its viscosity starts relatively high; however, under low shear stress, its viscosity gradually decreases. Under high shear stress, it exhibits pseudoplastic flow. Both conditions assume a medium plasticizer dosage level (70-100 phrs).The plastisol produced from this resin exhibits good foaming properties and a long shelf life. It also offers good thermal stability when combined with a wide range of thermal stabilizers, and a fast gelation rate with a semi-gloss surface finish.This emulsion resin produces plastisols ideal for extended coating of foams, particularly high-build-expansion foams with a very fine, closed-cell structure. It also produces high-performance, high-viscosity, compact coating plastisols without the need for thickening agents. For foaming applications, it is recommended for use with K/Zn or Na/Zn activators.EM 3090 can be applied in plastisol rotary screen printing, plastisol transfer spreading, or plastisol spraying processes. It can also be used as an automotive sealant applied by spraying.

K76 (H10) PVC resin

K76 PVC resin is a medium molecular weight micro-suspension homopolymer. It is used to produce plastisols or pastes that exhibit low viscosity at low shear stress and slight expansion at high shear rates in formulations with low to medium plasticizer dosages (40–60 phr). Plastisol made from this polymer offers a high-clarity, high-gloss surface finish, low water absorption, good electrical resistance, good air release, and a low gel temperature. It also exhibits good thermal stability and lightfastness when used with various heat stabilizers, as well as good mechanical properties. When left to stand or with a long shelf life, its viscosity increase over time is low, as is its tendency to settle.This emulsion resin produces plastisols suitable for extended solid coatings, especially clear varnishes with low plasticizer content where high mechanical properties are required. Due to their low viscosity, plastisols with PVC K76 (H10) are also ideal for all types of coatings and for rotational molding, dip coating, and casting processes. It is primarily used in high-clarity topcoats for flooring, wall coverings, applications requiring high mechanical strength, footwear, and vehicle interiors.