Escorez 1102 & 2101 Equivalent Guide | Milorez

For Escorez 1102, test MR-C5100 first; for Escorez 2101, start with the low-aromatic C5/C9 grade MR-5910. MR-C5100 is the closest chemistry and softening-point screen for the 100°C aliphatic C5 benchmark. MR-5910 is the closer chemistry screen for the aromatic-modified C5 grade, although its nominal softening point is lower. MR-C5110 is a higher-softening C5 option when the objective is more cohesion or heat response. These are comparable alternatives, not claimed drop-in replacements.

What are Escorez 1102 and 2101?

ExxonMobil’s public Escorez 1102 product data sheet describes a yellow, pellet-form aliphatic hydrocarbon tackifying resin. It reports a typical Ring-and-Ball softening point of 100°C, 23 YI initial color, a 110°C wax cloud point, and a 52°C glass-transition temperature. The separate Americas sales specification sets a 97–103°C softening-point range and Gardner color at 9 maximum.¹² That predominantly aliphatic character makes Escorez 1102 a familiar reference for nonpolar elastomers and selected EVA or polyolefin hot-melt systems.

Escorez 2101 is a legacy aromatic-modified C5/C9 aliphatic resin. It does not appear in ExxonMobil’s current public tackifier data-sheet list, so buyers should work from their own original TDS or purchase specification rather than assume a current limit.³ Public Exxon patent data identify the unhydrogenated resin at 91.1°C softening point, 18.65% aromaticity, and 70.4 YI; earlier adhesive literature reports a 90–95°C range.⁴⁵ Its aromatic contribution changes compatibility compared with straight C5 resin, particularly in styrenic, rubber, and selected EVA formulations.

Typical values and selection comparison

Typical values — screening comparison, not purchase specifications. Color values are meaningful only when the scale, concentration, solvent, and method match. Yellowness Index and Gardner are not interchangeable.

Benchmark or candidate	Chemistry	Softening point, R&B	Gardner color	Compatibility tendency	Typical application screen
Escorez 1102	Unhydrogenated aliphatic C5	100°C typical; 97–103°C specification	≤9	Nonpolar rubbers, SIS midblock, selected EVA/APAO systems	Packaging hot melt, PSA, rubber and sealant
MR-C5100	Unhydrogenated aliphatic C5	100°C nominal	≤5 typical	SIS, natural rubber, polyisoprene, butyl rubber, selected EVA/APAO	Closest first screen for Escorez 1102
MR-C5110	Unhydrogenated aliphatic C5	110°C nominal	≤5 typical	Similar C5 screening space, with a higher-softening balance	Higher-cohesion HMA/PSA and warm-service trials
Escorez 2101	Aromatic-modified C5/C9	About 91–93°C; 90–95°C reported	≤7.5 reported in a legacy distributor table; verify6	Natural and synthetic rubber, styrenic elastomers, selected EVA	PSA, rubber and modified hot-melt systems
MR-5910	Low-aromatic C5/C9 copolymer	86°C nominal; 83–90°C typical window	2–3 typical; ≤4 maximum	Elastomer-rich SIS/SBS, rubber and selected EVA	Lower-softening chemistry screen for Escorez 2101

Milorez publishes MR values as typical values, not as Escorez specifications. Request the current MR TDS and agree the commercial limits before ordering.

Substitution guidance for packaging hot melt and PSA

For an EVA packaging hot melt using Escorez 1102, begin with MR-C5100 at the incumbent resin loading. Compare melt clarity and viscosity at the real application temperature, then measure open time, set speed, fiber tear, heat resistance, and color after thermal aging. Screen MR-C5110 only when the 100°C candidate meets wetting targets but needs a higher-softening balance; its 10°C shift can require changes to wax, oil, or resin loading.

For a formulation built around Escorez 2101, a straight C5 resin may remove aromatic compatibility that the system needs. Start with MR-5910 and check phase clarity, cloud point, and adhesion before optimizing dosage. Because MR-5910 is a lower-softening candidate, monitor shear and warm-temperature cohesion and evaluate a controlled higher-softening blend if needed. In SIS, SBS, or rubber PSA, compare loop or rolling-ball tack, 180° peel, shear holding power, low-temperature tack, and aged performance. Aromatic modification can change where the tackifier resides within a block copolymer, so matching softening point alone is not enough.

A controlled switching process

1. Record the incumbent resin lot, full recipe, mixing sequence, coating temperature, and baseline adhesive results.
2. Obtain the candidate TDS and test a free sample at equal resin loading before changing other ingredients.
3. Compare neat-resin softening point and color, then complete-formulation viscosity, compatibility, tack, peel, shear, heat response, and aging.
4. Adjust one variable at a time and confirm the best laboratory formula in a pilot run.
5. Approve a written purchase specification before commercial scale-up.

Milorez is a transparent export trading supplier based in Fujian, China. The commercial MOQ is 1 × 20’ FCL, while samples are free for pre-purchase formulation work.

Request an Escorez equivalent sample

Send your incumbent grade, polymer, resin loading, application temperature, test targets, annual demand, and destination. Review the broader C5 resin guide, then request a free sample of MR-C5100, MR-C5110, or MR-5910 for a controlled comparison.

Frequently asked questions

What is the closest Milorez equivalent to Escorez 1102?

MR-C5100 is the closest starting candidate by resin family and nominal 100°C softening point. It still requires formulation testing and is not presented as a universal drop-in replacement.

What should I test as an Escorez 2101 alternative?

Start with MR-5910 when low-aromatic C5/C9 chemistry is required. Its nominal 86°C softening point is lower than the published Escorez 2101 range, so test compatibility, tack, and cohesion in the complete adhesive.

Can MR-C5110 directly replace Escorez 1102?

Not without testing. Its nominal 110°C softening point can alter melt viscosity, tack, wetting, and cohesive performance.

Which qualification tests should I run?

At minimum, compare viscosity, compatibility, open/set time, tack, peel, shear, heat resistance, and aged color under matched conditions.

Are samples free, and what is the MOQ?

Samples are free. The minimum commercial order is one 20-foot full-container load.

Trademark notice: Escorez® is a registered trademark of ExxonMobil. Milorez is not affiliated with ExxonMobil. The grade names are referenced only for comparative identification; no endorsement or exact equivalence is implied.

Sources

Footnotes

1. ExxonMobil Product Solutions, Escorez 1102 (Americas) product data sheet. ↩

2. ExxonMobil Product Solutions, Escorez 1102 (Americas) sales specification. ↩

3. ExxonMobil Product Solutions, current Escorez tackifier technical data-sheet list. ↩

4. ExxonMobil Research and Engineering, US 2003/0150778 A1, Table I and paragraph 47. ↩

5. Exxon Research and Engineering, US 4,623,698, describing Escorez 2101 as aromatic-modified C5 resin with a 90–95°C softening point. ↩

6. Dongguan Yongzheng Chemical, legacy Escorez grade table, reporting 92°C and Gardner ≤7.5 for Escorez 2101. ↩