Foral 85 resin is the glycerol ester of highly hydrogenated wood rosin. It is an exceptionally pale thermoplastic resin that has outstanding resistance to oxidation and to discoloration caused by heat and aging.
Foral 85 resin can be used as a tackiﬁer resin in various types of adhesives, and in protective and barrier type coatings that require an exceptional degree of color retention and oxidation resistance.
It is particularly effective in tackifying acrylic PSA formulations.
- Tackiﬁer resin for pressure sensitive adhesives used for tapes, labels, medical appliances, and specialty applications
- Tackiﬁer resin in lamination of metal foil, paper, cloth, cellophane, and cellulose acetate ﬁlms
- Imparts hot tack and heat sealability in hot melt adhesives and improves adhesion to substrates
- Improves hot tack and bond strength in hot melt coatings
- Improves surface gloss and clarity in packaging appearance
- Increases gloss, transparency, and adhesion as a modifier in paraffin wax
- Resistant to oxidation
- Pale color
- Excellent color retention
- Inherent tackiness
- Extensive solubility and compatibility
- Low odor
Softening Point, Pinova drop method, °C
Color, USDA rosin scale, maximum
Acid number, mg KOH/g
Color, USDA rosin scale
Color, Gardner, 50% solids in toluene
Density at 25 °C, lbs/gal (kg/l)
Bag, multiwall, kraft
Bulk, tank truck
50 lb, 22.68 kg
400 lb, 181.44 kg
21 CFR 175.105
21 CFR 177.1200
21 CFR 175.125(b)
21 CFR 175.300
21 CFR 175.320
21 CFR 175.380
21 CFR 175.390
21 CFR 176.180
21 CFR 176.200
21 CFR 176.210
21 CFR 177.1210
21 CFR 177.1400
21 CFR 177.2600
21 CFR 178.3120
21 CFR 178.3800
21 CFR 178.3850
21 CFR 178.3870
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.