Amidoamines

Amidoamines is a result of the reaction of most common amine i.e. tetraethylenepentamine with fatty acid such as Tall Oil Fatty acid. Amidoamines are basically mono-adducts of polyamine with TOFA and having higher molecular weight than polyamine and therefore longer reaction rate but Polyamide are bi-adducts with even bigger molecular weight and thus, reflect higher viscosity and also longer pot life. Amidoamines are curing agents for ambient temperature applications. Amidoamines form a low viscosity and exhibit good adhesion especially concrete, corrosion resistance, lower odor and are able to cure under humid conditions.

General Performance

Low viscosity
Good concrete adhesion
Range of reactivities
Good water & Corrosion resistance

1

Products	Amine Value (mg KOH/g)	Viscosity (25°C, cPs) ¹⁾	Color (Gardner)	Pot life (mins) ²⁾	AHEW	Type	Properties / Applications
Jointmide 322	330 ± 20	400 ~ 900	<8	3 ~ 4hrs	110	Amidoamine	Long Pot life. Slightly flexible. Low shrinkage. Crack injection, high solid coatings, concrete repair
Jointmide 322K	350 ± 20	400 ~ 800	<8	100	100	Amidoamine	Crack injection, high solid coatings, concrete repair
Jointmide 322-2	320 ± 20	500 ~ 1,000	<8	110 ~ 120	110	Amidoamine	Crack injection, high solid coatings, concrete repair
Jointmide 3350	300 ± 20	1,000 ~ 3,000	<10	115 @200g	115	Amidoamine	Wet surface tolerance. Solvent-free primers, wet or damp surface concrete primer, coatings & adhesives
Jointmide 342	280 ± 20	1,000 ~ 2,500	<8	33	95	Amidoamine	Good adhesion, good mechanical properties. Middle Coat, sealants, resin mortar, grout bonding, putties
Jointmide 343	295 ± 20	150 ~ 450	<8	5 ∼ 6hrs	100	Amidoamine	Low viscosity, long Pot life. Crack injection, casting, electrical potting, flooring, heavy-duty floor patching compound, crane rail grouting
Jointmide 345	390 ± 20	200 ~ 500	<8	110 ~ 150 @200g	100	Amidoamine	Low viscosity, long Pot life, good corrosion resistance, good wetting properties. Concrete repair, floorings, high solid coatings, metal & plastic adhesives, electrical potting
Jointmide 3502	390 ± 20	200 ~ 500	<8	100 ~ 130 @200g	90	Amidoamine	Concrete repair, floorings, high solid coatings, metal & plastic adhesives, electrical potting
Jointmide 3452	295 ± 20	200 ~ 500	<7	43	106	Amidoamine	Low viscosity, good compressive strength. Concrete repair, electrical potting, castings, tile grouts
Jointmide 346	360 ± 20	300 ~ 600	<9	95	100	Amidoamine	Low viscosity, long Pot life. Civil engineering, grouts, hand lay-up laminating & tooling, patching compound
Jointmide 347	320 ± 20	500 ~ 800	<8	30 ~ 40	100	Amidoamine	Low viscosity, low odor, non-amine blush. Potting, adhesive, bonding old & new concrete, concrete repair, tile grouts
Jointmide 3477	345 ± 20	400 ~ 800	<8	45 ~ 55	100	Amidoamine	Low viscosity, good adhesion. High solid coatings, potting, casting, adhesive, putties
Jointmide 348	520 ± 30	300 ~ 600	<8	25 ~ 30	68	Amidoamine	Low viscosity, cures well on damp surface, good mechanical properties. Tile grouts, patching compounds, castings, adhesives
Jointmide 3955	550 ± 20	400 ~ 800	<8	30	65	Amidoamine	Low viscosity, fast cure, high mechanical properties. Patching compounds, composites, civil engineering.
Jointmide 365	360 ± 30	200 ~ 500	<10	90 ~ 110	100	Amidoamine	Low viscosity. Long Pot life. Good mechanical properties. Crack injection, bonding old & new concrete, grouts, adhesives, repair compositions
Jointmide 391	300 ± 20	400 ~ 800	<8	30	115	Amidoamine	Wet surface tolerance, Low viscosity, less amine blush, excellent toughness. Epoxy lining and coatings, damp surface concrete primer

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