Phenolic Resins
Phenolic Resins for Shell Molding

Products

We offer phenolic resins for shell molding with high mechanical strength and fast curing performance.

Plants

  • Shizuoka Plant
  • Akita Sumitomo Bakelite Co., Ltd. (Japan)
  • P.T. Indopherin Jaya (Indonesia)
  • Sumitomo Bakelite (Nantong) Co., Ltd. (China)
  • Durez Corporation (USA)
  • Sumitomo Bakelite Europe NV (Belgium)
  • Sumitomo Bakelite Europe (Barcelona), S.L.U. (Spain)

Laboratories

  • High Performance Plastic Technology Development Laboratory
  • Sumitomo Bakelite Europe NV (Belgium)

Features

High Performance, High Reliability

We offer various types of phenolic resins which provide high mechanical strength, fast curing, anti-peel back, low thermal expansion, low odor, ease of collapse after molding.

Applications

Automotive/Railways/Aircraft

Automotive Mechanical Components

Shell Molding (Resin Coated Sand)

Resin Coated Sand for engine casting, aluminium casting, main mold component, hollow core, solid core

Specifications

SUMILITERESIN®PR Series

Solid novolak resin (for dry hot coating)
GradeFormSoftening
point (°C)		Flow
(mm)		AdvantageApplication
PR-51618GFlake9639Anti peel backHollow core, Master mold
PR-51363FFlake10236Anti peel backHollow core, Master mold
PR-F-85GFlake10038Low thermal expansion,
anti peel back		Hollow core, Master mold
PR-F-151FFlake10928Available for thinner partsHollow core
PR-F-116Flake8880High strength, fast cureSolid core
PR-2206Flake86118Easy knock outSolid core

Remark

  • The data given above are not guaranteed values.

Powder novolak resin (for dry mix)
GradeMelting point (°C)Flow (mm)Hexamine contentAdvantageApplication
PR-3109220MediumFast cureMaster mold

Remark

  • The data given above are not guaranteed values.

Liquid resol resin (for semi-hot coating)
GradeSpecific gravity
(-/25°C)		Viscosity @25°C
(MPa·s)		Nonvolatile content
(%)		AdvantageApplication
PR-516631.1110062Fast cure,
anti peel back		Hollow core,
Master mold

Remark

  • The data given above are not guaranteed values.