Hanson Chemicals

Alkyl Phenol Formaldehyde Resins

Formula: Variable (depends on alkyl substituent; general formula C₉H₁₂O·CH₂O repeating units)
CAS Number: 25155-23-1
EC Number (EINECS): 270-557-9
HS Code: 39094000
UN Number: Not classified as hazardous for transport
IUPAC Name: Poly(alkylphenol-formaldehyde)
Also Known As: Phenolic Resin; p-Alkyl Phenol Resin; Novolak Resin
Molecular Weight, g/mol: Variable (polymeric material)

Typical Specifications

Appearance: Yellow to amber solid / viscous liquid
Odor: Mild phenolic odor
Flash Point, °C: >150
Solubility: Insoluble in water; soluble in alcohols, ketones, hydrocarbons
Grades Available: Solid, Liquid, Modified grades
Packaging: 25kg bags, 200kg drums, 1000kg IBCs

Applications / Uses

Primary Applications

  • Tackifier resin for rubber compounding

  • Adhesive and sealant formulations

  • Binder in friction materials (brake linings, clutch facings)

Secondary Applications

  • Coatings and varnishes

  • Printing inks

  • Foundry resins for sand molds

End Industries Served: Rubber & Tyres, Adhesives, Automotive, Coatings, Foundry, Inks, Construction

Safety & Handling Information

Hazard Class (GHS): May cause skin/eye irritation; harmful if inhaled in dust or fumes

Hazard Statements (H-Codes):

  • H315: Causes skin irritation

  • H319: Causes serious eye irritation

  • H335: May cause respiratory irritation

Precautionary Statements (P-Codes):

  • P280: Wear protective gloves/eye protection

  • P261: Avoid breathing dust/fume

  • P305 + P351 + P338: IF IN EYES – rinse cautiously with water

Storage Conditions

  • Store in cool, dry, well-ventilated area

  • Protect from heat and direct sunlight

  • Keep container tightly closed to prevent contamination

Transport Information

  • ADR/RID: Not classified as dangerous goods

  • IMDG: Not classified as dangerous goods

  • IATA: Not classified as dangerous goods

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