Description

Rohm & Haas Paraloid B-67 CAS NO 53801-42-6 is a high-performance acrylic resin, specifically a butyl methacrylate copolymer, widely recognized for its excellent film-forming properties and chemical resistance. This product is essential for formulators seeking to enhance the durability, gloss, and weatherability of protective coatings. It is a critical raw material for manufacturers in the industrial coatings, automotive refinish, and specialty inks industries, where long-term performance under demanding conditions is required.

Application

• As a primary film-forming agent in high-quality industrial maintenance and marine coatings.
• As a modifier and additive in automotive refinish paints to improve flow, leveling, and gloss retention.
• In the formulation of specialty printing inks, particularly for overprint varnishes requiring chemical and abrasion resistance.
• As a key component in wood finishes and furniture lacquers to provide a clear, hard, and protective topcoat.
• For enhancing the flexibility and adhesion of coatings on plastic substrates.
• In architectural coatings where excellent exterior durability and UV resistance are needed.

Basic Information

Product Name	Rohm & Haas Paraloid B-67
CAS No.	53801-42-6
Molecular Formula	(C8H14O2)n
Molecular Weight	~30,000 - 60,000 g/mol (Typical for polymer grades)
Synonyms	Butyl Methacrylate Copolymer; Acryloid B-67; Poly(butyl methacrylate); BMA Copolymer; Acrylic Resin B-67; Paraloid Acrylic Resin B-67; 2-Propenoic acid, 2-methyl-, butyl ester, polymer; Butyl 2-methylpropenoate polymer
EINECS	Contact for details

Quality Control

Our Paraloid B-67 is manufactured under strict quality management systems to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including molecular weight distribution, viscosity, solids content, and glass transition temperature (Tg). A Certificate of Analysis (COA) detailing these specifications is provided with every shipment to guarantee compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flame. Under these conditions, the product has a typical shelf life of 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow beads or solution
Solid Content	≥ 98.0% (for solid grade)
Viscosity (Solution)	Specification available upon request
Glass Transition Temperature (Tg)	~ 50 °C
Acid Value	≤ 1.0 mg KOH/g
Color (Gardner)	≤ 2

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