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Technical Data Sheet

  • Adhesives/sealants-B&C
  • Bookbinding
  • Carpet construction
  • Case and carton closures
  • Casting wax
  • Film modification
  • Hygiene adhesives
  • Labels non food contact
  • Packaging tape
  • Polymer modification
  • Protective coatings
  • Road markings
  • Roofing
  • Solvent borne packaging adhesives
  • Specialty tape
  • Tires
  • Wire/cable
Key Attributes
  • Broad compatibility with numerous elastomers, polymers, and other tackifying resins
  • Consistent quality
  • Excellent heat stability
  • Light color
  • Low odor

Product Description
Eastotac™ H-115R is a hydrogenated hydrocarbon resin, having a ring and ball softening point of 115°C and a molten Gardner color of 4. Eastotac H-115R has excellent compatibility with APAO (amorphous poly-alpha-olefins), metallocene-catalyzed polyolefins, as well as the midblock of SIS (styrene-isoprene-styrene), and SEBS (styrene-ethylene/butylene-styrene) block copolymers. Eastotac H-115R resin is used in numerous adhesive and sealant applications.

Typical Properties

PropertyTest MethodTypical Value, Units
Softening PointASTM D 6090116 °C
Color, Gardner (Molten)ASTM D 61665
Yellowness Indexa 
     1 cm cellASTM E 31314
Density 1.04 g/mL
Viscosity, Brookfield 
     @ 190°C 400 cP
Form Flake
Acid Number <0.1
Bulk Density 1.04 g/mL
Bromine Number 5
Flash Point 
     Cleveland Open Cup 257 °C (495 °F)
Glass Transition Temperature (Tg)b 62 °C
Cloud Pointc 
     DACP 66 °C
     MMAP 76 °C
Molecular Weighte 
     Mn 470
     Mw 920
     Mw/Mn 2.0
     Mz 1840

a50% in toluene
bGlass transition temperature by differential scanning calorimetry, 20°C/min.
cCCloud point temperature from 1:1 Vol:Vol xylene-diacetone alcohol, Eastman method.
dCloud point temperature from 2:1 Vol:Vol aniline-methylcyclohexane, Eastman method.
eMolecular weight measured via Gel Permeation Chromatography (GPC) using polystyrene standards, elution with THF.

Compatibility and Solubility
Compatible at all ratios or in limited but practically useful proportions, with natural and synthetic rubbers, butyl rubber, EVA (ethylene-vinyl acetate) copolymers, APAO (amorphous poly-alpha-olefins), styrene-butadiene rubber (SBR) copolymer, SIS (styrene-isoprene-styrene) block copolymers, SIBS (styrene-isoprene/butadiene-styrene) block copolymers, SEBS (styrene-ethylene/butylene-styrene) block copolymers, SEPS (styrene-ethylene/propylene-styrene) block copolymers, polyethylene polymers, polypropylene polymers, paraffin and microcrystalline waxes, PIB (polyisobutene), OBC (olefinic block copolymers), mPE (metallocene-catalyzed polyethylene), mPP (metallocene-catalyzed polypropylene), and TPE (thermoplastic elastomers).
Soluble in aliphatic, aromatic, and chlorinated hydrocarbon solvents. Insoluble in alcohols and water.

The standard package for Eastotac™ H series resins is a 50-pound (22.7-kg) multiwall paper bag. Samples (1 kilogram) are available for evaluation.

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.

Based on stability testing conducted on comparable resin samples, and available information from past experience, when stored in the original unopened container in an enclosed area under storage conditions outlined in this data sheet, protected from moisture, extreme temperatures and contamination, this product is estimated to continue to meet applicable sales specifications for 3 years from the date of manufacture. The exact useful life of this product can be affected by such things as storage and handling conditions and the conditions relating to past experiences may not be representative of your specific product storage and handling conditions. As a user of this product, you should be guided by your own determination that your use of the product is safe, lawful, and technically suitable in your intended applications. Refer to the Safety Data Sheet for available health, safety, storage and handling information.

Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

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.

1/18/2023 2:47:27 PM