SuperEko KNFCO is an alkaline phenol resin hardened with CO2.
Resin SuperEko KNFCO is used to produce cores for cast iron and cast steel castings. Resin SuperEko NFC is used as the only component of moulding sands and core sands. Moreover, short hardening time allows to use this resin for lot production of cores. Depending on base type and grain size, amount of added resin should range from 2.0 to 3.0 parts by weight. Resin SuperEko KNFCO ensures good knock-out properties and very high casting surface quality. Mixes with this resin exhibit the highest longevity and cores are very strong. Cores made with SuperEko KNFCO should not be stored longer than several weeks.
|Viscosity in 20 °C Ford Cup no. 4||35 – 90 [s]|
|Density in 20 oC||1.28-1.33 [g/cm3]|
|Free phenol content||max. 0.1 [%]|
|Free formaldehyde content||max. 0.1 [%]|
|Quartz sand Grudzień Las||100 [cz.w.]|
|Binder (hardening with CO2, 15 s)||2.5 [cz.w.]|
|1 [h]||1.5 [MPa]|
|3 [h]||1.8 [MPa]|
|24 [h]||>2.0 [MPa]|
|1 [h]||1.4 [MPa]|
|3 [h]||1.6 [MPa]|
|24 [h]||2.0 [MPa]|
Product is put in 40-kilogram canisters, 220-kilogram barrels and 1100-kilogram IBC containers and transported according to transport regulations in force.
Product is stored in closed manufacturer’s packaging or in other closed containers adapted for this purpose, in rooms with maximum temperature 25 oC.
Product stored in suggested conditions has warranty period 6 months from manufacture date.
Technological parameters tested according to PN-83/H-11070. Tested using K1 class model sand containing 0.20/0.16/0.10 fractions (according to PN-85/H-11001) at ambient temperature of 20°C. Sand max. humidity 0.1%. Hardened with CO2 for 15 seconds. If conditions differ, data provided in the card may not constitute basis for complaints.