At S&D, we are passionate about creating solutions to improve our customers’ products and processes, reduce our environmental impact, preserve natural resources and enhance the quality of life within our communities.

Keeping all these in mind, we are dedicated to operating our business according to the guiding principles issued by reputable certification bodies.

S&D s Commitment to the Zero Discharge of Hazardous Chemicals

As part of S&D’s commitment to protect consumers, workers and the environment, we defined and developed the S&D Restricted Substances List (RSL) based on the RSL of ZDHC (Zero Discharge of Hazardous Chemicals).

Ensured Consumer Protection

Leaving Only Green Prints

Safe working environment for workers



Manufacturing Restricted Substances List

The ZDHC RSL is a list of chemical substances subject to a usage ban, meaning that the RSL-listed chemical substance or group of substances may not be used to achieve a desired function or effect during production (that is, no intentional use) of the raw material or product. Due to the existence of manufacturing impurities in chemical formulations, a minor or trace amount of the restricted substance is permitted within defined concentration limits. Chemical formulations containing restricted substances that exceed these limits are not compliant with the RSL.

Restricted substances and groups of substances according to RSL of ZDHC (details on chemicals and individual limits see RSL) are:

  1. Alkylphenol (AP) and Alkylphenol Ethoxylates (APEOs)
  2. Chlorobenzenes & Chlorotoluenes
  3. Chlorophenols
  4. Dyes – Azo (Forming Restricted Amines)
  5. Dyes – Navy Blue Colorant
  6. Dyes – Carcinogenic or Equivalent Concern
  7. Dyes – Disperse (Sensitizing)
  8. Flame Retardants
  9. Glycols
  1. Halogenated Solvents
  2. Organotin Compounds
  3. Polycyclic Aromatic Hydrocarbons (PAHs)
  4. Perfluorinated and Polyfluorinated Chemicals (PFCs)
  5. Phthalates – including all other esters of ortho-phthalic acid
  6. Total Heavy Metals
  7. Volatile Organic Compounds (VOC) 


The RSL addresses hazardous substances potentially used and discharged into the environment during manufacturing and related processes, not just those substances that could be present in finished products.