Toray Fine Chemicals Co., Ltd.
2-3-1, Kanda-Sudacho,Chiyoda-ku,
Tokyo 101-0041, JAPAN
TEL:+81(3)6859-1251
FAX:+81(3)6859-1140

POLYTHIOL QE-340M(Quick Curing Agent for Epoxy Resin)
Description
POLYTHIOL QE-340M is clear color liquid polymer which has thiol(-SH) terminals.
Typical Properties
POLYTHIOL QE-340M offers excellent properties at curing of epoxy resin in combination with aminesor polyamines.
Polymer Properties
Specification

Typical value

Appearance－clear liquidColor (APHA)≦300

15Viscosity (Pa・s) @25℃

10.0～18.013Mercaptan Content(wt%)

10.0～14.0

13Curing Properties
Formulation : jER-828/QE-340M/EHC-30 = 100/80/10 (Weight)
EHC-30: Tris-2,4,6-dimethylaminomethyl phenol[Typical Data]
QE-340M

Gel Time (min)Hardness (Shore D)1 24hr
Lap Shear Strength (MPa)2 24hr

5℃

7.5

23℃,50%RH

3.55℃

79

23℃,50%RH

845℃

1523℃,50%RH

151 Sample Size :φ31mm×8mm
2 Adherend:Steel(sandblast) 25mm×100mm×1.6mm

Note: The information contained herein is, to the best of our knowledge and belief, accurate. However, since the conditionsof handling and of use are beyond our control, we make no guarantee of results and assume no liability for damages
incurred by following these suggestions. Nothing contained herein is to be construed as a recommendation for use inviolation of any patents or of applicable laws or regulations.

Toray Fine Chemicals Co., Ltd.
2-3-1, Kanda-Sudacho,Chiyoda-ku,
Tokyo 101-0041, JAPAN
TEL:+81(3)6859-1251
FAX:+81(3)6859-1140

 Curing Properties of QE-340M

QE-340M cures quickly even under low temperature and shows high Hardness.
Hardness at 5℃ and 23℃,50%RH
jER-828

0.5hr

10080
559

10080
1079

1hr
3hr
24hr
3d7d0.5hr
1hr
3hr
24hr
3d7d66
71
6875
6871
7274
80
79
82

81
79
79
7776
78
8283848282

QE-340M
1EHC-30

5℃

Hardness[Shore D] 223℃
50%RH

1 Tris-2,4,6-dimethylaminomethyl phenol
2 Sample Size : φ31mm×8mm

Note: The information contained herein is, to the best of our knowledge and belief, accurate. However, since the conditionsof handling and of use are beyond our control, we make no guarantee of results and assume no liability for damages
incurred by following these suggestions. Nothing contained herein is to be construed as a recommendation for use inviolation of any patents or of applicable laws or regulations.

Toray Fine Chemicals Co., Ltd.
2-3-1, Kanda-Sudacho,Chiyoda-ku,
Tokyo 101-0041, JAPAN
TEL:+81(3)6859-1251
FAX:+81(3)6859-1140

 Curing Properties of QE-340M

QE-340M cures quickly even under low temperature and shows high Lap Shear Strength.
Lap Shear Strength at 5℃ and 23℃,50%RH
jER-8281008010080

5100.5hr

151hr

683hr
24hr
3d7d0.5hr
1hr
3hr
24hr
3d7d

612171269141923209151516111817151515

QE-340M
1EHC-305℃

Lap Shear
Strength [MPa]223℃
50%RH

1 Tris-2,4,6-dimethylaminomethyl phenol
2 Adherend:Steel(sandblast) 25mm×100mm×1.6mm

Note: The information contained herein is, to the best of our knowledge and belief, accurate. However, since the conditionsof handling and of use are beyond our control, we make no guarantee of results and assume no liability for damages
incurred by following these suggestions. Nothing contained herein is to be construed as a recommendation for use inviolation of any patents or of applicable laws or regulations.