MR-5910 is Milorez’s closest comparable alternative to Wingtack 86 for buyers screening a low-aromatic C5/C9 tackifier. The chemistry and application position are relevant, but this is not a drop-in-equivalence claim. Approve MR-5910 only after testing it in the complete pressure-sensitive adhesive (PSA) or hot-melt formulation.
Trademark notice: Wingtack® is a registered trademark of Cray Valley (TotalEnergies). Milorez is not affiliated with, endorsed by, or sponsored by Cray Valley or TotalEnergies. The name is used only to identify the comparison benchmark.
What is Wingtack 86?
Wingtack 86 is a legacy aromatically modified C5 hydrocarbon resin, also described as an aliphatic/aromatic tackifier. Public product data reports a nominal Ring-and-Ball softening point around 86°C, with published typical figures of 86–87°C. Its aromatic modification distinguishes it from a standard unmodified C5 resin and can broaden compatibility in selected elastomer systems.
Archived Wingtack 86 product data describes use in hot-melt and solvent-borne PSAs, hot-melt adhesives, sealants, and related compounds. A published Bostik adhesive patent independently identifies it as an aromatically modified C5 resin with an 86°C softening point. These sources establish the benchmark; they are not a current Milorez specification.
Wingtack 86 vs MR-5910 — typical values
Typical values and selection characteristics — comparison guidance only, not an interchangeability guarantee. Request the current MR-5910 TDS and agree the commercial specification before ordering.
| Comparison point | Wingtack 86 published benchmark | Milorez MR-5910 |
|---|---|---|
| Resin family | Aromatically modified C5 hydrocarbon resin | Low-aromatic C5/C9 copolymer resin |
| Ring-and-Ball softening point | About 86–87°C typical | Positioned for the Wingtack 86 selection range; confirm current TDS |
| Aromatic character | Modified aliphatic resin | Low-aromatic copolymer |
| Appearance | Public data describes a light-yellow solid resin | Confirm current sample and agreed color method |
| Main screening use | PSA and hot-melt tackification | Comparable PSA and hot-melt formulation trials |
| Equivalence status | Comparison benchmark | Closest Milorez screening candidate; not automatically interchangeable |
Matching the resin-family description and softening-point region is only the first filter. Molecular-weight distribution, aromaticity, glass-transition temperature, melt-viscosity curve, color method, and lot consistency can change wetting and adhesive performance even when two data sheets look similar.
PSA substitution guidance
For an SIS, SBS, or rubber-based PSA, begin with a fresh Wingtack 86 control and a mass-for-mass MR-5910 screening batch. Keep polymer, oil, antioxidant, mixing time, temperature, coat weight, substrate, and conditioning fixed. Record blend clarity or haze and viscosity at the actual coating temperature.
Test loop or rolling-ball tack, 180° peel, static shear, SAFT or the buyer’s heat-resistance method, and low-temperature performance. Repeat after heat aging and the required storage interval. If initial tack, peel, and shear move in different directions, adjust one variable at a time; do not hide a compatibility difference by changing oil and resin loading together.
Hot-melt adhesive substitution guidance
In hot melts, compare melt homogeneity, application viscosity, open time, set speed, substrate wetting, bond failure mode, and thermal aging. Selected EVA, SIS, and SBS systems may respond differently to the change in aromatic balance. A clear molten blend is useful evidence, but cooled-film haze, phase separation, odor, and color stability also matter.
Run the trial on the intended substrate and temperature window. Paperboard, film, nonwoven, foam, and coated surfaces can rank the two tackifiers differently. Production approval should follow a line trial after the laboratory screen passes.
Free-sample qualification process
- Define the benchmark. Send the Wingtack 86 formulation role, polymer, resin loading, process temperature, substrates, and pass/fail targets.
- Review current data. Milorez checks MR-5910 against the requested selection window and provides the applicable technical basis.
- Test a free sample. Use the control protocol above and report both resin-level observations and finished-adhesive results.
- Confirm commercial terms. Agree the specification, packing, destination, and schedule. The commercial MOQ is 1 × 20’ FCL.
Milorez is a transparent export trading supplier based in Fujian, China. It does not present itself as the trademark owner or claim an undisclosed manufacturing identity.
Frequently asked questions
Is MR-5910 a drop-in Wingtack 86 equivalent?
No. It is a separately sourced Milorez grade offered as a comparable alternative for qualification.
Why does aromatic modification matter?
It changes compatibility across elastomeric and styrenic phases, which can alter tack, peel, cohesion, and blend clarity.
Can softening point alone confirm a match?
No. It does not capture aromaticity, molecular weight, viscosity, color stability, or finished-adhesive behavior.
What should a PSA trial measure?
At minimum, compare compatibility, coating viscosity, tack, peel, static shear, heat response, low-temperature performance, and aging.
How do I request MR-5910?
Request a free MR-5910 sample and include your incumbent grade, formulation type, test conditions, annual demand, and destination. You can also review MR-5910 and the C5/C9 copolymer resin guide before submitting the trial brief.
Frequently asked questions
What is Wingtack 86?
Wingtack 86 is a legacy aromatically modified C5 hydrocarbon tackifier. Public data places its Ring-and-Ball softening point at about 86-87°C and identifies PSA and hot-melt adhesives among its uses.
Is MR-5910 a drop-in equivalent to Wingtack 86?
No drop-in claim is made. MR-5910 is Milorez's closest comparable low-aromatic C5/C9 candidate, but it must pass compatibility, viscosity, tack, peel, shear, and aging tests in the complete formulation.
Which adhesive systems should evaluate MR-5910?
MR-5910 is a screening candidate for SIS-, SBS-, natural-rubber-, and selected EVA-based pressure-sensitive or hot-melt systems that use a low-aromatic tackifier.
How should a Wingtack 86 alternative trial begin?
Make a controlled mass-for-mass screening batch, keep every other ingredient and process condition fixed, and compare it with a fresh incumbent control before making one-variable adjustments.
Can I request a free MR-5910 sample?
Yes. Milorez offers a free sample for formulation evaluation. Commercial supply has a minimum order of one 20-foot full container load.