Excellent resistance to ozone, UV radiation, and weathering without requiring additional stabilizers.
Outstanding low-temperature flexibility down to –30 °C while maintaining elastic recovery.
Good adhesion to metals, plastics, and painted substrates without primers.
Low compression set for durable sealing performance in dynamic applications.
Compatible with common acrylic-based coatings and solvent-free formulation systems.
Automotive exterior trim seals and gaskets.
Architectural expansion joint sealants for façades and curtain walls.
Weather-resistant encapsulants for outdoor electronic housings.
Flexible bonding layers in composite laminates for transportation interiors.
High-durability elastomeric components in HVAC ducting and roofing membranes.
| Chemical Type | Acrylic copolymer elastomer |
| Product Form | Pellets |
| Appearance | Off-white to light tan, free-flowing granules |
| Primary Applications | Sealants, extruded profiles, molded elastomeric parts |
| Key Features | Ozone/UV resistance, low-temperature flexibility, primerless adhesion |
| Processing Method | Extrusion, injection molding, compression molding |
| Storage Conditions | Store in dry, cool conditions (<25 °C); protect from direct sunlight |
| Shelf Life | 24 months from date of manufacture under recommended storage |
Q1: What is the primary function of Kuratay LA 2140e in polymer formulations?
A: Kuratay LA 2140e functions as a reactive acrylic elastomer modifier, primarily used to enhance impact resistance, flexibility, and low-temperature toughness in rigid thermoplastic matrices—especially in PVC, ABS, and polycarbonate blends—without significantly compromising tensile strength or processability.
Q2: Is Kuratay LA 2140e compatible with common plasticizers and stabilizer systems?
A: Yes, it demonstrates good compatibility with conventional PVC plasticizers (e.g., phthalates, adipates, and bio-based alternatives) and thermal stabilizers including calcium–zinc and organotin systems. Its acrylic backbone minimizes migration concerns and supports stable dispersion during compounding and melt processing.
Q3: How is Kuratay LA 2140e typically incorporated into production batches?
A: It is generally introduced during high-shear compounding—either as a dry blend prior to extrusion or directly fed into the extruder throat. Due to its thermoplastic elastomeric nature, it melts and disperses readily above 140 °C and does not require pre-dissolution or special handling under standard PVC or engineering thermoplastic processing conditions.
Q4: Does Kuratay LA 2140e affect clarity or surface gloss in finished articles?
A: When properly dispersed at recommended dosage levels, it typically maintains high transparency and surface gloss in clear PVC and PC applications. Its refractive index is closely matched to common rigid thermoplastics, minimizing optical distortion—though excessive loading or inadequate shear may lead to haze.
Q5: What storage conditions are recommended for long-term stability?
A: Store in original unopened packaging in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Under these conditions, shelf life exceeds 12 months. Avoid exposure to high humidity, as prolonged moisture absorption may affect flow behavior during feeding.
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