Admark Polycoats Phenalkamines are based on cashew nutshell liquid (CNSL), a natural, non-food chain, and renewable biomaterial. CNSL is a reddish brown viscous liquid extracted from the soft honeycomb structure inside the cashew nutshell.
CNSL is decarboxylated and distilled to yield high purity Cardanol, a highly desirable alkylphenolic compound used in the coatings and adhesive industries. Cardanol is used as a primary building block for Admark Polycoats epoxy curing agents and epoxy diluents and modifiers.
The product obtained by Mannich reaction of Cardanol, formaldehyde, and certain amines is called a Phenalkamine. Phenalkamines share similar advantages like other Mannich based curing agents, such as: extremely fast cure, low temperature cure (even below 0°C), good chemical resistance, good moisture tolerance, and non-blushing properties. The fast and low temperature cure properties of Phenalkamines have several benefits for coating formulations. Fast cure also means protected surfaces can be re-coated or returned to service in a short period.
In forced cure industrial coating applications, Phenalkamines can help to save energy by lowering oven cure temperatures or increasing production line speeds.
With over a decade of research, Admark has developed new products in Phenalkamine technology such as high solid or innovative solvent-free, low viscosity, and fast curing epoxy hardeners.
|Sr. No.||Product||Solid Content NVM [%]||Key Properties||Marine Coating||Protective Coating||Industrial Coatings||Construction Concrete|
|1||AP 1040||Solvent Free||Low viscosity, surface tolerant||–||–|
|2||AP 1041||Solvent Free||Low temperature cure, surface tolerant, excellent anti corrosion||–|
|3||AP 1041X90||88 – 90||Solvent cut for good handling||–|
|4||AP 1041LV||Solvent Free||Low viscosity for high solid coating||–|
|5||AP 1057||Solvent Free||Good film, excellent adhesion|
|6||AP 1026||Solvent Free||Fast cure low viscosity||–||–|
|7||AP 1454||Solvent Free||Fast cure for high solid coating||–|
|1||AP 1080||78 – 82||Very fast cure high solids and low viscosity.||–|
|2||AP 1711||74 – 76||Fast cure, good blush resistance similar properties of AP 1562, high solid %.||–|
|3||AP 1087||68 – 72||Fast cure, good blush resistance, adhesion and excellent corrosion protection.||–|
|4||AP 1562||64 – 66||Fast cure, good blush resistance and adhesion.|
|5||AP 1300||58 – 61||Fast hardness development, very good flexibility, similar properties of AP 1087, lower solid %.||–|