Aromatic Amines

The advantages of aromatic amine over aliphatic amine for curing epoxy resins are the development of higher heat distortion temperature in the cured product. It has greater chemical resistance after cure and the mixtures had to be cured at some heat to achieve excellent elevated temperature performance. Aromatic amine cured epoxy systems can give films with excellent gloss, blush free and excellent chemical resistance. But, aromatic amine confers poor color stability to film. Aromatic amine cured systems finds usage mainly in tank lining, primer, maintenance coating in corrosive environments.

General Performance

High heat distortion temperature
Long pot life
Excellent chemical resistance
Low temperature and damp condition cure possible
Good strength properties

1

Products	Amine Value (mg KOH/g)	Viscosity (25°C, cPs) ¹⁾	Color (Gardner)	Pot life (mins) ²⁾	AHEW	Type	Properties / Applications
Jointmine N-307	300 ± 20	100 ~ 300	<18	85 ~ 105	90	Aromatic Amine Adduct	Good acid resistance, long pot life, good mechanical properties, high gloss, under water curing. Heavy-duty anticorrosion coatings & floor topping compounds.
Jointmine N-307-1	290 ± 20	150 ~ 350	<18	60	90	Aromatic Amine Adduct	High chemical resistance, good resistance to organic & inorganic acids, cures at high humidity.Heavy-duty anticorrosion coatings & floor topping compounds.
Jointmine N-307-2	270 ± 20	200 ~ 500	<18	25 ~ 35	90	Aromatic Amine Adduct	Heavy-duty anticorrosion coatings & floor topping compounds.
Jointmine N-307-3	280 ± 20	300 ~ 700	<18	20	90	Aromatic Amine Adduct	Cure at low temperature, good electrical properties & mechanical properties. Heavy-duty anticorrosion coatings & floor topping compounds.
Jointmine M-1027	240 ± 20	800 ~ 2,000	<18	30 ~ 35	95	Aromatic Amine Adduct	Excellent acid resistant, underwater cure, cure at low temperature. Wine tank coatings, chemical tank linings, marines & maintenance coatings.
Jointmine M-107	300 ± 30	300 ~ 600	<18	50 ~ 60	90	Aromatic Amine Adduct	Low viscosity, good mechanical properties, high chemical resistance. Civil engineering, castings, laminates, solventless coatings, epoxy tar caotingstank linings.
Jointmine M-1083	200 ± 20	4,000 ~ 6,000	<18	23 ~ 25hrs *³	110	Aromatic Amine Adduct	Excellent resistant to organic acid & bases, good mechanical properties, cures on damp surface, abrasion resistant. Tank lining & chemical resistant flooring.
Jointmine M-1085	385 ± 20	15,000 ~ 21,000	<18	32	120	Aromatic Amine Adduct	All-round chemical resistance, fast curing. Chemically-resistant tank lining. Coatings & flooring.
Jointmine MD-500	520 ± 20	25,000 ~ 45,000 @40ºC	<18	90 @40ºC	52	Modified Aromatic Amine	High strength, chemical resistant, resistance to water, acid, alkalis & hydrocarbon solvents. Composites, filament winding, pre-preg fabrication.
Jointmine 907	670 ± 50	80 ~ 160	<10	85 ~ 95	44	Modified Aromatic Amine	Good acid and solvent resistant, good heat resistance, VOC free. Tank lining, wet lay-up laminating, encapsulation.
Jointmine DM-200	610 ± 30	9,000 ~ 18,000	<18	3 ~ 4hrs *³	45	Modified Aromatic Amine	High HDT, long Pot life. Pipe lamination, composites, filament winding, pre-preg fabrication.
Jointmine DT-4500	--	400	<12	>10hrs	44.5	Modified Polyamine	Non-MDA aromatic amine, high HDT, non-staining. Co-hardener to improve HDT & increase gel time.

1 Viscosity, cps measured by RVF type Brookfield viscometer.
2 Pot life in 100g mass at 25°C, minutes
3 Gel Time in 150g mass at 25°C