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Technical Data Sheet
Piccolastic™ A75 Hydrocarbon Resin

  • Adhesives/sealants-B&C
  • Bookbinding
  • Carpet construction
  • Case and carton closures
  • Casting wax
  • Commerical printing inks
  • Concrete
  • Film modification
  • Labels non food contact
  • Marine
  • Packaging components non food contact
  • Packaging tape
  • Paper chemicals
  • Polymer modification
  • Protective coatings
  • Roofing
  • Specialty tape
  • Tape non food contact
  • Tires
Key Attributes
  • Light color
  • Made from pure styrenic monomer

Product Description
Piccolastic™ A75 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 primary plasticizers and softeners. Piccolastic™ A75 can be used as a modifier for rubber and plastic compounds used in shoe construction and as a binder for xerographic toners. In styrenic block copolymer-based systems Piccolastic™ A75 associates strongly with the styrene endblocks, reducing melt viscosity and cohesion without greatly affecting tack and adhesion properties. Piccolastic™ A75 is compatible with EVA grades with up to 20% vinyl acetate and will improve low temperature flexibility and reduce the melt viscosity of the system. Piccolastic™ A75 complies with many FDA regulations for applications involving direct contact with food. Compliance with a given regulation in a specific situation should be verified prior to use in a food contacting application.

Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
Ring and Ball Softening PointASTM E 2873 °C
Color, GardnerdASTM D 61661
Cloud Pointg 
     DACP <-50 °C
     MMAP 5 °C
     OMS 63 °C
Molecular Weightf 
     Mn 760
     Mw 1360
     Mw/Mn 1.8
     Mz 2200
Refractive Index 
     @ 25°C 1.60
Melt Viscosity 
     10 poise 120 °C
     100 poise 100 °C
     1000 poise 85 °C
Glass Transition Temperature (Tg)e 36 °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.
d50% in toluene.
eGlass transition temperature by differential scanning calorimetry.
fMolecular weight, z-average from gel permeation chromatography, elution with THF.
gCloud 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). Soluble in aliphatic, aromatic, and chlorinated hydrocarbons; esters; and ketones. Insoluble in alcohols and glycols. For low or zero VOC systems Piccolastic™ A75 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.

Solid, in light-gauge metal drums (400 lbs, 182 kg, net wt) or multi-wall paper bags (50 lbs, 22. 7 kg net wt).


Due to the thermoplastic behavior, pastillated and flaked resins may fuse, block or lump. This can be accelerated under any of the following conditions: 1) above ambient temperature, 2) prolonged storage, 3) pressure, e.g., stacking pallets, or a combination of these conditions. This is particularly applicable for low softening point resin grades.

In order to maintain the flake or pastille shape, we therefore recommend storing the material in a temperature-controlled area, be careful with stacking material or applying pressure and preventing prolonged storage.

It should be noted that lumping does not have a negative impact on the product specifications. Due to the nature of the product, claims regarding lumping cannot be accepted.

Resins are prone to gradual oxidation, some more so than others. This could result in darkening and/or it could have an adverse effect on the solubility of the resin in organic solvents or on its compatibility with polymers. Accordingly, it is recommended that strict control of inventory be observed at all times, taking care that the oldest material is used first.

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