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Technical Data Sheet
Piccolastic™ A5 Hydrocarbon Resin

  • Adhesives/sealants-B&C
  • Bookbinding
  • Carpet construction
  • Case and carton closures
  • Casting wax
  • Commerical printing inks
  • Concrete
  • Film modification
  • Hygiene adhesives
  • Labels non food contact
  • Marine
  • Packaging components non food contact
  • Packaging tape
  • Paper chemicals
  • Polymer modification
  • Protective coatings
  • Roofing
  • Solvent borne packaging adhesives
  • Specialty tape
  • Tape non food contact
  • Tires
Key Attributes
  • Light color
  • Liquid
  • Made from purified aromatic monomers
  • Non-migrating plasticizer

Product Description
Piccolastic™ A5 hydrocarbon resin is a low molecular weight, light colored, polar, hydrocarbon resin derived from pure styrene monomer. Indicated for use in adhesives, coatings, plastics modification and rubber compounding, particularly as a plasticizer or softener. Using Piccolastic™ A5 in an adhesive system can improve flexibility at low temperatures. In styrenic block copolymer-based systems Piccolastic™ A5 associates strongly with the styrene endblocks, reducing melt viscosity and cohesion without greatly affecting tack and adhesion properties. Piccolastic™ A5 is compatible with EVA grades with up to 30% vinyl acetate and will improve low temperature flexibility and reduce the melt viscosity of the system.

Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
Ring and Ball Softening PointASTM E 28Liquid @ 25°C
Color, GardnerfASTM D 61662
Cloud Pointe 
     DACP <-50 °C
     MMAP -6 °C
     OMS -29 °C
Molecular Weightd 
     Mn 300
     Mw 360
     Mw/Mn 1.3
     Mz 560
Refractive Index 
     @ 25°C 1.57
Melt Viscosity 
     10 poise 45 °C
     100 poise 30 °C
     1000 poise 25 °C

aUnless noted otherwise, all tests are run at 23°C (73°F) and 50% relative humidity.
bUnless noted otherwise, the test method is ASTM.
cUnits are in SI or US customary units.
dMolecular weight, z-average from gel permeation chromatography, elution with THF.
eCloud point temperature from 2:1 Vol:Vol aniline-methylcyclohexane, Eastman method.

Compatibility and Solubility
Compatible with a wide variety of paraffin and microcrystalline waxes, alkyd resins, drying oils, epoxy resins, rosin and modified rosins, rosin esters, and vinyl resins, non-migrating where compatible. Soluble in aromatic, aliphatic, and chlorinated hydrocarbons; ketones; pyridine; carbon bisulfide; ethyl and butyl acetates; and turpentine. Insoluble in alcohols and glycols. Compatible at all ratios, or in limited but practically useful proportions, with a wide variety of materials, including SBR and SBR block copolymers; neoprene, nitrile, polybutadiene, and acrylic polymers; chlorinated rubber; EVA resins (ethylene-vinyl acetate copolymers); styrenated, vinylated, and drying oil alkyds; rosin resins; and EHEC (ethyl-hydroxy-ethylcellulose). For low or zero VOC systems Piccolastic A5 is soluble in the VOC exempt solvents t-butyl acetate and perchlorobenzenetetrafluoride (PCBTF) and will tolerate some acetone and/or methyl acetate as a diluent in solvent systems based on TBA and/or PCBTF. VOC exemptions and environmental regulations vary regionally and compliance with local standards should be verified before any claims about VOC content are made.

Liquid, in heavy-gauge metal drums (420 lbs, 190.5 kg, net wt) or bulk tank truck.

It is recommended that strict control of inventory be observed at all times, taking care that the oldest material is used first. Hydrocarbon resins have been stored for up to two years with no observable change in properties. For storage periods exceeding two years the material should be re-tested to verify compliance with product specifications, but there is no indication that these products cannot be stored for many years without affecting performance.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

2/28/2018 11:35:39 AM