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Technical Data Sheet

  • Adhesives/sealants-B&C
  • Case and carton closures
  • Film modification
  • Labels non food contact
  • Paints & coatings
  • Polymer modification
  • Specialty tape
  • Wax ingredients
Key Attributes
  • Excellent thermal and UV stability
  • Highly stable
  • Low odor
  • Partially hydrogenated
  • Water-white color
  • Wide compatibility

Product Description
Regalrez™ 6108 hydrocarbon resin is produced by polymerization and partial hydrogenation of pure monomer hydrocarbon feedstocks. It is highly stable, light colored, low molecular weight resin suggested for use in adhesives, coatings, sealants, and caulks. Due to its low color, high stability and balance of cycloaliphatic and aromatic structure, Regalrez 6108 provides a breadth of compatibility that is not possible with a purely aromatic or aliphatic resin. It is suggested for use in applications where fully hydrogenated resins or pure monomer aromatic resins are incompatible or do not give the desired balance of properties. In hot melt adhesives based on styrene block copolymers, it provides excellent room temperature cohesion with low adhesive viscosity.

Typical Properties

PropertyTest MethodTypical Value, Units
Ring and Ball Softening PointASTM E 28108 °C
Color, Yellowness IndexaASTM E 3133
Cloud Pointb 
     DACP 25 °C
     MMAP 54 °C
Molecular Weightc 
     Mn 780
     Mw 1460
     Mw/Mn 1.9
     Mz 2390
     @ 21°C 1.01 kg/L
Melt Viscosity 
     1 poise 200 °C
     10 poise 170 °C
     100 poise 145 °C
     1000 poise 125 °C
Glass Transition Temperature (Tg)d 55 °C

a50% solids in toluene, 50 mm path length, Illuminant C, and a 2° observer.
bCloud point temperature testing by Eastman methods. MMAP from 1:2 vol:vol mixture of methylcyclohexane and aniline. DACP from 1:1 vol:vol mixture of diacetone alcohol and xylene.
cMolecular weight measured via Gel Permeation Chromatography (GPC) using polystyrene standards, elution with THF.
dGlass transition temperature by differential scanning calorimetry, 20°C/minute.

Compatibility and Solubility
Regalrez™ 6108 is compatible in useful proportions with natural and synthetic rubbers, SBR, polychloroprene, and with the midblock of SBS (styrene-butadiene-styrene), SIS (styrene-isoprene-styrene), SIBS (styrene-isoprene/butadiene-styrene), and SEBS (styrene-ethylene/butylene-styrene) block copolymers, as well as modifying the styrenic endblock of all styrene-containing block copolymers. Regalrez 6108 can be used with EVA (ethylene-vinyl acetate) copolymers with up to 40% vinyl acetate, polyethylene, paraffin and microcrystalline waxes.

Regalrez 6108 is soluble in aliphatic and aromatic solvents, C5 and higher esters and ketones. It is insoluble in glycol ethers, glycol ether esters, and alcohols. For low/zero VOC systems Regalrez 6108 is soluble in t-butyl acetate (TBA) 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.


Flake, in multi-all paper bags (50 lbs, 22.7 kg, net weight).

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.

The useful life of this product can be affected by storage and handling conditions. When stored in the original unopened container in an enclosed area and protected from moisture, extreme temperatures and contamination, the shelf life of this product is estimated to continue to meet applicable sales specifications for three years from the date of manufacture. Shelf life is a guide not an absolute value. The product should be reanalyzed for critical properties at the end of its shelf life to see if it meets specification for use.

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.

11/10/2020 4:32:53 AM