For an Eastotac H-100W alternative, start by screening MR-H100: it is a fully hydrogenated, water-white hydrocarbon resin with a nominal 100°C softening point. MR-H100 is the closest comparable alternative in the Milorez range, but it is not presented as a universal drop-in Eastotac equivalent. Color method, molecular-weight distribution, compatibility, viscosity and adhesive performance must all be confirmed in the buyer’s formulation.
Eastotac™ is a trademark of Eastman Chemical. Milorez is not affiliated with Eastman Chemical. Trademark references identify the comparison target only.
What is the Eastman Eastotac H series?
Eastotac H-series products are hydrogenated aliphatic tackifier resins. Public legacy descriptions identify the H-100 grades as hydrogenated C5 aliphatic hydrocarbon resins; Eastman’s broader resin guide describes the series as mixed hydrocarbon feedstocks followed by hydrogenation. The family was designed around low odor, heat stability and compatibility with olefinic polymers.
The number indicates nominal ring-and-ball softening point: H-100 grades target 100°C. The final letter is a color tier, not a different softening-point class: E = economical, R = regular, L = light and W = water-white. Eastman’s guide positions R, L and W for color-sensitive nonwoven and packaging hot melts, while E suits applications where color and stability are less critical.
Eastotac H-100 color grades
Typical values — legacy public grade references, not Milorez specifications
| Eastotac reference | Published color tier | Nominal softening point | Legacy molten Gardner reference | Practical interpretation |
|---|---|---|---|---|
| Eastotac H-100E | Economical | 100°C | 8 | Cost-led use where darker color is acceptable |
| Eastotac H-100R | Regular | 100°C | 4 | Intermediate color requirement |
| Eastotac H-100L | Light | 100°C | 2 | Light-colored adhesive formulations |
| Eastotac H-100W | Water-white | 100°C | <1 | Most color-sensitive H-100 position |
These numbers are useful for recognizing the historical grade ladder, not for setting a purchase specification. Later Eastman literature also reports yellowness index in resin solutions, with different cell path lengths for different tiers. Molten Gardner, solution Gardner and yellowness index are not interchangeable. Always compare the incumbent TDS, candidate TDS and batch data using one matched method and condition.
Eastotac H-100 vs MR-H100 and MR-H110
Typical values and screening positions — confirm the current TDS before approval
| Candidate | Chemistry / color position | Nominal softening point | Best first-screen role |
|---|---|---|---|
| Eastotac H-100E/R/L/W | Hydrogenated aliphatic H-100 family; four color tiers | 100°C | Incumbent reference; use the exact suffix and current data |
| MR-H100 | Fully hydrogenated, water-white | 100°C | Closest comparable starting point for H-100W; also screen when moving from L or R toward lower color |
| MR-H110 | Hydrogenated resin; confirm current color data | 110°C | Higher-softening-point option where more heat resistance or cohesion is being explored |
A shared 100°C value narrows the search but does not prove equivalence. Compare melt viscosity across the operating range, compatibility or cloud point, initial and aged color, odor, tack, peel, shear and thermal aging. MR-H110 should not be treated as an H-100 match: its higher softening point may change wetting, open time, set speed and low-temperature performance.
Hygiene and packaging hot-melt guidance
For disposable hygiene construction or elastic adhesives, begin with MR-H100 when the incumbent is Eastotac H-100W or another low-color H-100 grade. Hold polymer, oil, antioxidant and resin loading fixed in both controls. With SIS, SEBS, APAO, metallocene polyolefin or olefin block copolymer systems, check tank stability, molten odor, spray pattern, bleed, creep, peel and color after hot aging. A water-white appearance does not establish skin-contact or hygiene compliance.
For case-and-carton sealing, labeling, assembly or clear packaging hot melts, evaluate viscosity at the real application temperature, open time, set speed, fiber tear, substrate wetting and heat resistance. If the adhesive may be used in food packaging, obtain the current documentation for the exact supplied grade and assess the complete formulation and intended conditions of use. Resin color alone is not a compliance claim. See the broader hydrogenated hydrocarbon resin guide for chemistry and compatibility context.
Sample-to-approval process
- Send the exact Eastotac grade suffix, incumbent TDS or COA, polymer system, resin loading, process temperature and critical performance limits.
- Align test methods for softening point, color and viscosity before comparing numbers.
- Request a free MR-H100 sample and run a side-by-side laboratory trial against the incumbent.
- Confirm hot aging, tack, peel, shear, creep, odor and color, then move the best formulation to a pilot or production-line trial.
- Agree the commercial specification and batch acceptance fields before placing the container order.
Milorez is a transparent export trading supplier in Fujian, China—not the manufacturer. We coordinate the proposed source, documents and export order under a clear commercial scope. The standard MOQ is 1 × 20’ FCL, while the sample is free for qualified evaluation.
Request an Eastotac H-100 comparison sample
Request a free sample with your incumbent grade, formulation and test plan. Milorez will identify whether MR-H100 is the closest equivalent candidate or whether the 110°C MR-H110 screening window better fits your performance target.
Frequently asked questions
What is the closest Milorez equivalent to Eastotac H-100W?
MR-H100 is the closest comparable starting point because it is fully hydrogenated, water-white and nominally 100°C. It still requires side-by-side approval.
What do E, R, L and W mean?
They identify economical, regular, light and water-white color tiers. They do not indicate progressively higher softening points.
Can MR-H110 replace Eastotac H-100?
Only as a reformulation candidate. Its 110°C softening point can alter viscosity, tack, set and heat resistance.
Is water-white resin automatically suitable for hygiene or food packaging?
No. Confirm current documentation and validate the complete adhesive and finished article for the intended use.
What are the sample and order terms?
Milorez offers a free sample. The standard commercial MOQ is one 20-foot FCL.
Sources
- Eastman, Spectrum of Hydrocarbon Resins — H-series chemistry, color tiers, compatibility and applications.
- Eastman, Hydrocarbon Resins for Adhesive Applications — published H-series softening-point and color reference data.
Frequently asked questions
What is the closest Milorez equivalent to Eastotac H-100W?
MR-H100 is the closest comparable starting point because it is a fully hydrogenated, water-white resin with a matching nominal 100°C softening point. It is not claimed as a universal drop-in equivalent; approve it through side-by-side formulation and line trials.
How do Eastotac H-100E, H-100R, H-100L and H-100W differ?
They share a nominal 100°C softening point and are separated primarily by color position: E means economical, R regular, L light and W water-white. Color values must be compared only with matched test methods, sample preparation and optical paths.
Can MR-H110 replace an Eastotac H-100 grade?
MR-H110 is a higher-softening-point, 110°C option rather than a direct H-100 match. Screen it only when the formulation can accept changed viscosity, set, tack and heat resistance.
Does a water-white resin automatically qualify for hygiene or food packaging?
No. Water-white color is a material property, not a hygiene, skin-contact or food-contact approval. Review current grade documents and validate the complete adhesive and finished article against applicable requirements.
Can I test a sample before ordering?
Yes. Milorez offers a free sample for formulation screening. The standard commercial MOQ is one 20-foot full container load.