DYA-500 Series

ChemStone DYA-500 is a unique patented blend of surfactants that is used to enhance yield in the Kraft pulping process while maintaining the removal of calcium carbonate scale.


  • FDA Approved
  • High Temperature Tolerant Without Causing Product Degradation
  • Patent Pending Technology
  • Removes Existing Scale and Protects System From New Scale Buildup


  • Increased Yield
  • Removes Existing Scale and prevents Scale buildup in Digester, Screens, and Lines, etc.
  • Reduced Bleaching Costs
  • Extends Time Between Digester Cleanings
  • Extractive Reduction

Physical Properties



This unique blend of surfactants is used to remove and maintain removal of calcium carbonate scale from process equipment. Applications thus far have included continuous digester lines, liquor heaters and inline drainers.

Storage and Handling Recommendations

ChemStone DYA-500 should be stored above 32° F, but not heated to above 120° F.

Regulatory Compliance

ChemStone DYA-500 is manufactured in compliance with the regulations of the Food and Drug Administration, 21 CFR, sections 176.210 and 176.170.

Containers and Shipping

ChemStone DYA-500 is available in non-returnable bulk bins (250 gal) and bulk shipments.