Reactive Polyamides have been the workhorse of Epoxy Coating Industry for many years. Polyamide resins are high molecular-weight polymers which feature amide linkages along with the molecular chain.
Polyamide resin, which has been widely used as a curing agent for epoxy resin, is formed by the condensation reaction between dimerised fatty acid with polyamines. Molecular weights are controlled by using monobasic fatty acid as a chain terminator. Polyamides contain reactive primary and secondary amines in its molecules
Polyamides are versatile curing agents for epoxies. They are compatible with many epoxy resins, and their mixing ratio with the resins is not critical. Fairly long pot life is possible using polyamides and one can get casting with good impact strength as well as excellent adhesion to different substrates. Some polyamides are used as flexibilizers as well as a curing agent.
Polyamide Adducts provide good compatibility and better cure under adverse conditions.
Admark offers specialty Polyamides suitable coatings for Damp, Green Concrete. They do not require induction period and have outstanding adhesion to abrasive blasted steel, as well as to damp concrete surface. They also give good gloss, flexibility and toughness to the cured film and excellent corrosion resistance.
Good flexibility and toughness
Long working pot life
Good water and Corrosion resistance
Wide range of compatibility with epoxy resins
Low shrinkage on cure and exceptional dimensional stability
Excellent resistance to mechanical impact or shock
High flexural, compressive and tensile strength
Excellent adhesion and bonding to a wide variety of substrates
Possibility for a variety of end uses
Solvent-borne and two pack epoxy coatings
Epoxy Primers and Top coats
Coal tar epoxy coatings
Solid Content NVM [%]
Adhesive, Sealants and Putties
Standard high-viscosity polyamide. Flexibility, long pot-life and good properties with solid epoxy resin.
68 – 72
70 % solid solution in xylene for better handing. Solvent borne primer coating. Long pot-life.
Standard medium-viscosity polyamide. 1:1 volume ratio with standard liquid epoxy resin.
Standard high-imidazoline content polyamide. Exhibits very good adhesion, flexibility along with good corrosion protection.
Low viscosity, high gloss, very good flexibility, hardness and impact resistance comparable to polyamide. No induction time is required.
74 – 76
Faster drying as compare with std polyamide with better blush resistance.
48 – 52
Very much faster drying and good humidity resistance, also able cure in humid condition having very good blush resistance and flexibility.
Good adhesion to wet concrete. High solid coatings for corrosion protection under severe conditions and marine maintenance.
protection under severe conditions and marine maintenance.