SINOMER® PM841 M is a modified polythiol curing agent designed for rapid gelation and cure of epoxy resins, especially at low temperatures and in thin films. It offers significant advantages in fast repair, winter construction, and low-temperature applications compared to conventional curing agents. This product can rapidly cure epoxy resins such as BER-128 (E51) within 30 minutes. It is designed as an alternative to GABEPRO GPM-830CB.
SINOMER® PM841 M
(30-Minute Cure Modified Polythiol Curing Agent for Epoxy Systems)
SINOMER® PM841 M is a modified polythiol curing agent designed for rapid gelation and cure of epoxy resins, especially at low temperatures and in thin films. It offers significant advantages in fast repair, winter construction, and low-temperature applications compared to conventional curing agents. This product can rapidly cure epoxy resins such as BER-128 (E51) within 30 minutes. It is designed as an alternative to GABEPRO GPM-830CB.
| 检验项目 (Item) | 指标要求 (Specification) |
| 外观 (Appearance) | 淡黄色透明液体 |
| Viscosity @ 25°C (mPa·s) | 10,000 – 15,000 |
| Color (Pt-Co) | < 2 |
| Mix Ratio (with BER-128 (E51), EEW 195) | 1:1 |
| Gel Time (30°C) | Around 25 ~ 30min |
| Lap Shear Strength (MPa) | 22.8 |
| Tensile Strength (MPa) | 53 |
| Compressive Strength (MPa) | 64 |
| Tg (°C) | 42 |
Fast curing, even in thin films
Light color and high transparency
Low odor
Excellent low-temperature curing performance
Suitable for rapid bonding, lamination, and casting
Rapid bonding
Lamination
Casting
Craft ornaments
Electronic and electrical components
Civil engineering and construction
Composites
Photovoltaic and new energy industries
Mix ratio: 1:1 with standard Bisphenol A epoxy resin (EEW ~195) is recommended as a starting point. Optimize based on specific epoxy grade and performance requirements.
Gel time at 30°C: approximately 25 minutes 30 seconds (average of 5 tests).
Pot life: short. Plan application accordingly.
Apply within pot life. For thin film applications, ensure even coating.
Cure at ambient temperature. Low temperatures will prolong curing time
25kg/drum or 220 kg/drum
| 检验项目 (Item) | 指标要求 (Specification) |
| Product Name | Cas No. |
| Chemical Name | Synonyms/Application |
| ▶Sinomer® PETMP | 7575-23-7 |
| Penta-erythritol tetrakis(3-mercaptopropionate) | THIOCURE PETMP;PET-3-MP;Tetra (3-mercaptopropionate) |
| ▶Sinomer® BMES | 3570-55-6 |
| Bis(2-mercaptoethyl) sulfide;Dimercapto diethyl sulfide;2,2′-Thiodiethanethiol; | THIOCURE DMDS;Polythiol DMDS |
| ▶Sinomer® BMPT | 131538-00-6 |
| 2,3-bis((2-mercaptoethyl)thio)-1-propanethiol | THIOCURE DMPT;Polythiol DMPT |
| ▶Sinomer® PM839 | 72244-98-5;101359-87-9 |
| Poly[oxy(methyl-1,2-ethanediyl)],.alpha.-hydro-.omega.-hydroxy-, ether with 2,2-bis(hydroxymethyl)-1,3-propanediol (4:1), 2-hydroxy-3-mercaptopropyl ether | Epoxy curing agent,Capcure 3-800;GABEPRO GPM-800;Polythiol QE-340M;Thiocure 1200 |
| ▶Sinomer® TMPMP | 33007-83-9 |
| Trimethylolpropane Tris(3-mercaptopropionate) | / |
| ▶Sinomer®OM835 | 188829-97-2 |
| Bis(thiiran-2-ylmethyl)sulfane;1,1′-Thiobis(2,3-epithiopropane);Bis(2,3-ethylpropyl) sulfide | high refractive index optical monomer |
| ▶Sinomer® OM265 | 39667-72-6 |
| 2-Propenoic acid, 2-(2-benzothiazolylthio)ethyl ester;(2-(2-benzothiazolylthio)ethyl)acrylate;MBTA | high refractive indexoptical monomer |
| ▶Sinomer® OM258 | 97049-32-0 |
| 2-Naphthalenylthioethyl acrylate;2-Propenoic acid 2-(2-naphthalenylthio)ethyl ester;NTEA | high refractive indexoptical monomer |
| ▶Sinomer® OM386 | 129283-82-5 |
| Bis(4-Methacryloylthiophenyl) Sulfide;4,4'-Thiodibenzenedithiol Dimethacrylate | high refractive index optical monomer |
| ▶Sinomer® PETMA | 10193-99-4 |
| Penta-erythritol tetrakis(2-mercaptoacetate) | coupling agent |
| ▶Sinomer® EGDMP | 22504-50-3 |
| Ethylene Glycol Bis(3-Mercaptopropionate) | cross-linking agent,curing agent |
| ▶Sinomer® GDMA | 123-81-9 |
| Glycoldimercaptoacetete;Ethylene di(S-thioacetate) | PVC heat stabilizer |
| ▶Sinomer® EHMP | 50448-95-8 |
| 2-Ethylhexyl 3-Mercaptopropionate | Sulfur-tin stabilizer |
| ▶Sinomer® GMT80 | 30618-84-9 |
| Glyceryl monothioglycolate | daily chemical |
