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Epoxy Curing Agent GHF2253
 

I. Description

GHF2253 is a kind of phenolic resin which can cure fast under low temperature. It is developed by reaction of BPA and epoxy resin. Pure epoxy powder coatings made of GHF2253 is characteristic of good properties of flow, anti-corrosive and mechanism. GHF2253 can react with normal epoxy resin and can cure under low temperature with great performance.

II. Technical specifications

Specification

Test method

Result

Appearance

Visualization

Transparent granule or powder

Softening point

GB617-88

78~85

Phenolic hydroxyl equivalent

Company Standard

230~250 (g/eq)

Solid content

GB/T 1725-1989

99%

III. Application and property

<1> Reaction ratio of GHF2253 against E-12(EEW: 800~850) is from 1:4 to 1:6. The dosage of GHF2253 varies according to the EEW of epoxy resin.

<2> GHF2253 contains catalyst which will accelerate the curing process. Extra catalysts cab be added to adjust the reaction speed when necessary.

<3> Due to the reaction of GHF2253 is very fast, the extruding temperature shall be well controlled and no higher than 100. The RM supply during the producing shall be consistent to avoid possible RM gelatinization.

<4> GHF2253 can cure under 120/40~45min. Curing time can be lessened by choosing lower EEW epoxy resin. GHF2253 can also cure under 200/2min.

IV. Suggested formulation (160/5minute)

S.N.

RM

Supplier

Formula I

Formula II

Formula III

Formula IV

1

E-12

SSC

228.2

239.5

-

-

2

E-14

HengYuan

-

-

222

234

3

GH2253

SSC

51.8

40.5

58.0

46.0

4

GLP588

SSC

5

5

5

5

5

BLC701

SSC

4

4

4

4

6

Benzoin

SSC

2

2

2

2

7

R-760

SSC

120

120

120

120

10

BaSO4

DongFeng

89

89

89

89

Total

500

500

500

500

Film thickness: um

60-80

60-80

60-80

60-80

Impact(direct/reverse): kg.cm

50

50

50

50

V. Package & Storage

Available in polyethylene-lined, multi-ply paper bags, N.W.: 25KGS/Bag.

Store in cool and dry place, Keep away from heat and fire.

 

 
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