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  • Products Name: Accelerator HEXA(H)-80
  • Cas No.: 100-97-0 Granule
  • Chemical Name: Hexamethylenetetramine
  • Einecs No.: 202-905-8
  • MDL:

Pre-dispersed Accelerator H-80

Structural Formula

Molecular Formula C6H12N4

Molecular Weight 140.19

Cas No.  100-97-0
Chemical Name Hexamethylenetetramine 

Einecs No. 202-905-8


Typical Properties


Hexamethylenetetramine (H)

Percent Active





white to cream granule


~1.23g/cm3 (20℃)


Product Description H-80 is a weakly alkaline and slow curing accelerator without blooming. Cuing starts once H-80 is adding, but curing rate is slow. Besides, the cross-link density is high. Thiol, sulfonamide, thiuram or dithiocarbamate imparts activity and secondary acceleration effect to rubber compounds containing H-80. As methyl donor, H-80 is used for bonding rubber and all-steel cord combined with resorcinol.


Processing Characteristics H powder adheres to devices easily, disperses difficultly in mixing process, and tends to bloom. However, H-80 has good dosing and mixing property, and won’t cake at ordinary temperature and humidity. It has good fluidity, no irritating dust and no material loss. It keeps optimal activity of Hand easily disperses in kinds of rubber compounds. Recommend that H-80is added at last stage of mixing.


Dosage As primary accelerator(thick products), 0.6 ~ 0.8 phr H-80 with 3.0 ~ 4.0 phr sulfur;

            As assistant accelerator, 0.1 ~ 0.35 phr H-80 with 0.25 ~ 1.0 phr thiol or thiuram and 2.0 ~ 3.5 phr sulfur.

            As methyl donor, 1.3~ 1.6 phr H-80 with 2.5 ~ 3.2 phr resorcinol-80.

            In hardening rubber system, 10% of phenolic hardening resin.


Applications H-80 is used in slow curing rubber compounds, thick products, rubber rolls, light-colored or transparent articles, and as methyl donor in resorcinol-based adhesive compounds.


Packaging Coextruded paper bags lined with plastic film, net weight 25Kg/bag.


Storage Store in a cool, dry, well-ventilated area away from sunlightfor up to 1 year..


Safety and toxicity Refer to related MSDS.

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