Based on an alkylaromatic sulfonic acid. Nacure® XC-300 by King Industries acts as a latent blocked catalyst. Offers improved stability in amino crosslinked primers that employ basic or ion exchange type anti-corrosive pigments. Exhibits improved cure stability in thermoset anti-corrosive primers, excellent solubility in non-polar solvents, improved solvent pop resistance, and excellent humidity & salt spray resistance. Is soluble in aromatic & aliphatic hydrocarbons, alcohols, esters, ketones & glycol ethers and insoluble in glycols & water. Nacure® XC-300 is applicable for coil coating primers, primers for appliance finishes and general industrial thermoset primers. Recommended use level is 1.0 - 4.0% as supplied on total formula.
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