Description

Formvar(R) CAS NO 63148-64-1 is a high-performance polyvinyl formal resin widely recognized for its excellent film-forming properties, adhesion, and chemical resistance. This material is critical for creating durable, insulating, and protective coatings in demanding industrial applications. It is primarily sought after by manufacturers in the electronics, wire and cable, and advanced materials sectors for its reliability and consistent performance.

Application

• Wire Enamels: As a primary insulating varnish for magnet wires used in motors, transformers, and coils.
• Electronic Components: For coating and protecting printed circuit boards (PCBs), capacitors, and other sensitive components.
• Adhesive Formulations: Serving as a key binder in structural adhesives and metal-to-metal bonding systems.
• Protective Coatings: Used in corrosion-resistant and abrasion-resistant coatings for metal surfaces.
• Microscopy: As a support film for transmission electron microscopy (TEM) specimen preparation.
• Fiber Treatment: For sizing and strengthening glass and carbon fibers in composite materials.

Basic Information

Product Name	Formvar(R) CAS NO 63148-64-1
CAS No.	63148-64-1
Molecular Formula	(C8H14O2)n
Molecular Weight	Variable (Polymer)
Synonyms	Polyvinyl formal; PVF; Formvar; Poly(vinyl formal); Vinyl formal resin; Formaldehyde, polymer with ethenol; LPVF (Low molecular weight polyvinyl formal); Butvar (related trade name)
EINECS	Contact for details

Quality Control

Our Formvar(R) products are manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including viscosity, hydroxyl content, and degree of formalization. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance protocols.

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 flames. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white granules or powder
Identification (IR)	Conforms to standard
Viscosity (Solution)	Grade-dependent (e.g., 5-15 cP)
Hydroxyl Content	5.0 - 7.0 %
Acetate Content	9.0 - 13.0 %
Formal Content	80.0 - 84.0 %
Ash Content	≤ 0.1 %
Moisture Content (KF)	≤ 1.0 %

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