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Adhesives Ingredients
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Adhesives Ingredients
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Bayhydur® 304

Technical Datasheet | Supplied by Covestro
Bayhydur® 304 by Covestro acts as a crosslinking agent in waterborne adhesive systems. It is a solvent-free, hydrophilically modified, aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).
  • It shows good compatibility with the solvents listed esters, ether esters, xylene and solvent naphtha® 100.
  • Because of its hydrophilic character, it can be easily emulsified in the aqueous phase.
  • The dosage level of 3-10% of Bayhydur® 304 is recommended to crosslink adhesive dispersions containing 40-60% polymer.
  • It has a shelf life of 9 months.
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Product Type
Crosslinking / Curing / Vulcanizing Agents > Isocyanates
Chemical Composition
Aliphatic polyisocyanate based on hexamethylene
Product Status
COMMERCIAL
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