Description

Rosin/ p-tert-Butylphenol/ Formaldehyde/ Pentaerythritol CAS NO 68213-62-7 is a high-performance, modified phenolic resin synthesized from rosin, p-tert-butylphenol, formaldehyde, and pentaerythritol. This specialized resin offers a unique combination of excellent adhesion, high thermal stability, and good solubility in a wide range of organic solvents, making it a critical component in formulating durable industrial coatings and adhesives. It is primarily sought after by manufacturers in the paints and coatings, printing inks, and adhesive industries for applications requiring robust chemical resistance and strong substrate bonding.

Application

• Industrial and Marine Coatings: As a key resin binder to enhance adhesion, gloss, and chemical resistance in protective coatings for metal, wood, and concrete.
• Printing Inks: Used in gravure, flexographic, and overprint varnishes to improve ink transfer, gloss, and rub resistance.
• Adhesives and Sealants: Serves as a tackifying and reinforcing resin in hot-melt, pressure-sensitive, and structural adhesives.
• Rubber Compounding: Acts as a processing aid and tackifier to improve the properties of rubber products.
• Can and Coil Coatings: Provides excellent adhesion and flexibility in coatings for food containers and pre-coated metal sheets.
• Electrical Insulating Varnishes: Used in formulations for wire enamels and insulating materials due to its good dielectric properties and thermal stability.

Basic Information

Product Name	Rosin/ p-tert-Butylphenol/ Formaldehyde/ Pentaerythritol
CAS No.	68213-62-7
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Variable (Contact for details)
Synonyms	Rosin Modified p-tert-Butylphenol Formaldehyde Pentaerythritol Ester; Phenolic Modified Rosin Ester; p-tert-Butylphenol-Formaldehyde-Rosin-Pentaerythritol Resin; Tackifying Resin 68213-62-7; R-100 Resin (Trade Name Variant); T-100 Resin (Trade Name Variant); Alkylphenol Modified Rosin Ester; Pentaerythritol Ester of Rosin, Modified with p-tert-Butylphenol Formaldehyde Resin
EINECS	Contact for details

Quality Control

Our production of this modified phenolic resin adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as acid value, softening point, color, and solubility are rigorously tested. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance processes.

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 is stable for extended periods.

Specification

Item	Specification
Appearance	Pale yellow to amber solid lumps or flakes
Softening Point (Ring & Ball)	90 - 120 °C
Acid Value	≤ 20 mg KOH/g
Color (Gardner)	≤ 12
Solubility	Clear in Toluene, Xylene, Ethyl Acetate

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