Description

3-Hydroxybutyl Methacrylate is a bifunctional monomer containing both a polymerizable methacrylate group and a reactive hydroxyl group. This dual functionality makes it a valuable building block for synthesizing specialty polymers with tailored properties, such as enhanced adhesion, crosslinking capability, and hydrophilicity. It is primarily utilized by formulators and polymer chemists in the production of advanced coatings, adhesives, and functional resins for demanding industrial applications.

Application

• UV-Curable Coatings & Inks: A key reactive diluent and crosslinker in formulations for wood, plastic, and metal coatings, offering improved flexibility and adhesion.
• Adhesives & Sealants: Used to manufacture pressure-sensitive adhesives (PSAs) and structural adhesives with enhanced bonding strength and environmental resistance.
• Acrylic Resin Modification: Incorporated into acrylic copolymer chains to introduce pendant hydroxyl groups, enabling subsequent crosslinking with isocyanates or melamines.
• Hydrogel & Contact Lens Materials: Serves as a monomer for synthesizing hydrophilic polymers with controlled water absorption and biocompatibility.
• Fiber Optic Coatings: Employed in the production of primary and secondary coatings to protect optical fibers, providing essential mechanical and environmental protection.
• Dental Composites & Restoratives: A component in resin-based dental materials, contributing to durability, polishability, and bond strength.

Basic Information

Product Name	3-Hydroxybutyl Methacrylate
CAS No.	70103-32-1
Molecular Formula	C8H14O3
Molecular Weight	158.20 g/mol
Synonyms	3-Hydroxybutyl 2-methylacrylate; 2-Propenoic acid, 2-methyl-, 3-hydroxybutyl ester; 3-Hydroxybutyl methacrylate; 1,3-Butanediol monomethacrylate; Methacrylic acid 3-hydroxybutyl ester; BMA-3HB; HEMA analog C4
EINECS	Contact for details

Quality Control

Our 3-Hydroxybutyl Methacrylate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay by GC/HPLC, identity confirmation (IR), and control of key impurities (e.g., inhibitor content, water). A comprehensive Certificate of Analysis (COA) documenting purity, physical properties, and test results is provided with every shipment to ensure traceability and compliance with your specifications.

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 heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain monomer stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %
Inhibitor (MEHQ)	50 - 250 ppm
Acidity (as Methacrylic Acid)	≤ 0.5 %
Color (APHA)	≤ 50

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