Description

Uvithane 893 is a specialized aliphatic urethane acrylate oligomer, identified by CAS No. 71833-41-5. This high-performance material is engineered to deliver exceptional durability, chemical resistance, and weatherability in demanding applications. It is a critical component for formulators and manufacturers seeking to enhance the performance of UV-curable coatings, inks, and adhesives. Key industries that rely on this advanced oligomer include industrial coatings, graphic arts, electronics, and high-end packaging.

Application

• UV-Curable Industrial Coatings: Used as a primary resin in protective topcoats for automotive, aerospace, and metal substrates requiring superior abrasion and chemical resistance.
• Graphic Arts & Printing Inks: Serves as a key component in high-performance UV inks for outdoor signage, labels, and plastic films, offering excellent adhesion and color retention.
• Electronic Conformal Coatings: Provides a durable, protective layer on printed circuit boards (PCBs) and electronic assemblies, safeguarding against moisture and environmental contaminants.
• Packaging Coatings: Formulated into clear, scratch-resistant coatings for food and beverage packaging, plastic containers, and cosmetic bottles.
• Wood & Furniture Finishes: Imparts a hard, clear finish with excellent yellowing resistance for high-quality flooring, cabinetry, and decorative surfaces.
• Adhesives & Sealants: Acts as a reactive oligomer in instant-cure, high-strength UV adhesives for glass, plastic, and metal bonding.

Basic Information

Product Name	Uvithane 893
CAS No.	71833-41-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Aliphatic Urethane Acrylate 893; Urethane Acrylate Oligomer 893; UA 893; UV-curable urethane acrylate; Acrylated aliphatic urethane oligomer; Photocurable urethane resin; Uvithane UA-893; Light-curable polyurethane acrylate
EINECS	Contact for details

Quality Control

Every batch of Uvithane 893 is manufactured under a strict quality management system. We perform rigorous in-process and final testing to ensure consistent performance, including analysis of viscosity, acrylate content, color, and functionality. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing all relevant specifications. Our production adheres to industry best practices to guarantee reliability for your critical formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). Keep away from strong acids and organic solvents. Under these recommended conditions, the product maintains optimal stability.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 2
Viscosity @ 25°C	Contact for details
Acrylate Equivalent Weight	Contact for details
Acid Value (mg KOH/g)	≤ 1.0
Identification (IR)	Conforms

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.