Pentalyn® A

Pentalyn® A resin, a hard, pale, thermoplastic resin, is the pentaerythritol ester of refined wood rosin. Compared with rosin esters derived from glycerol, this ester is a larger molecule and has about a 20°C higher softening point and greater heat stability. When adducted to obtain still higher softening point resins, lesser amounts of modifying agents are required to yield a resin of equivalent softening point. Uses for Pentalyn A resin include protective coating vehicles, adhesives, and printing inks.

Product Code: 4285

Product Name

Pentalyn® A


  • Used as a varnish resin with soft and hard oils
  • Used as a checking resin to control dispersion of highly polymerized, soft drying oils in mineral spirits
  • Used in linoleum cements, hot melt adhesives and coatings
  • Tackifier in pressure sensitive adhesives
  • Contributes adhesion, high aliphatic solubility, gloss, solvent release in printing inks
  • Stability with reactive pigments and good pigment wetting in printing ink applications


  • Hard, resinous
  • High refractive index
  • Heat, light, and moisture stable
  • Wide solubility range
  • Low solution viscosity
  • Excellent gloss
  • Excellent pigment wetting properties

General Sales Specifications

Softening point, Pinova drop method, °C 109-116
Acid Number, mg KOH/g 6-16
Color, USRG, maximum M
Color, Gardner, 60% solids in toluene, max 11

Typical Properties

60% solids solution in mineral spirits
- Color, Gardner 9.5
- Viscosity at 25°C, Gardner-Holdt G
Refractive index at 20°C 1.544
Density at 25°C, lb/gal (kg/l) 8.9 (1.07)


Package Form Net Weight
Bag, multi-wall, kraft Pastilles 50 lbs, 22.68 kgs
Drum, fiber Solid 50 lbs, 22.68 kgs


CAS No. 8050-26-8 US DOT: Not regulated
International Nomenclature Cosmetic Ingredient (INCI): Pentaerythrityl Rosinate
US FDA: 21 CFR 73.1
21 CFR 172.615
21 CFR 175.105
21 CFR 175.125(b)
21 CFR 175.300
21 CFR 175.320
21 CFR 175.390
21 CFR 176.170
21 CFR 176.180
21 CFR 176.200
21 CFR 176.210
21 CFR 177.1200
21 CFR 177.1210
21 CFR 177.2600
21 CFR 178.3120
21 CFR 178.3800
21 CFR 178-3850
21 CFR 178-3870

Other regulatory information available on request

Storage and Inventory Control

Pastillated or flaked resins may fuse, block, or lump during hot weather months, if stored near sources of heat, if double or triple stacked, or if stored for prolonged periods of time. These forms of resin are prone to gradual oxidation, some more so than others. This could result in darkening and/or could have an adverse effect on solubility in organic solvents. Care should be given to minimize opportunities for product oxidation throughout processing. Accordingly, it is strongly recommended that proper storage conditions and strict control of inventory be observed at all times, taking care that the oldest material is used first.

Product Safety

Read and understand the Safety Data Sheet before using this product.

Pentalyn® is a registered trademark of Pinova, Inc.
© Pinova, Inc., 2010
Pinova® is a trademark of Pinova, Inc., Brunswick, Georgia, U.S.A.
The products and related information provided by Pinova are for manufacturing use only. Pinova makes no express, implied, or other representation, warranty, or guarantee concerning (i) the handling, use, or application of such products, whether alone, in combination with other products, or otherwise, (ii) the completeness, definitiveness, or adequacy, of such information for user’s or other purposes, (iii) the quality of such products, except that such products are of Pinova’s standard quality. Users are advised to make their own tests to determine the safety and suitability of each such product or product combination for their own purposes. Read and understand the Safety Data Sheet (SDS) before using this product.

Rev. 2 – 7/11