Hydrite Chemical Co.

Suppressor 3721


Suppressor 3721


Suppressor 3721 is based upon a 100% active synthetic base that affords the operator the freedom to use the product to control foam in many food processing systems as well as many industrial applications.

  • Applications 
  • Variants 
  • Options 
  • Product Details 
  • Resources 
  • Photos 
  • Videos 
  • Related Products 

Typical Applications

  • Beet sugar processing
  • Yeast processing
  • Chemical processing

In food processing, Suppressor 3721 should be used as received. Please refer to Hydrite’s FDA Approval Letter for use in food processing applications.


To assure that only approved compounds are used for the purpose intended, this notice of guarantee is being provided certifying that the listed compound complies with applicable federal food laws and has been produced in compliance with current Good Manufacturing Practices (cGMP). This product contains ingredients which are suitable for use as described below and may be used in food processing plants.

Suppressor 3721 (FC3721) Secondary Direct Food Additive Defoaming Agents
  Indirect Food Additives:Adhesives and Components of Coatings Adhesives
Resinous and polymeric coatings
  Indirect Food Additives - Paper and Paperboard Components Components of paper and paperboard in contact with aqueous and fatty foods
Components of paper and paperboard in contact with dry food
Defoaming agents used in coatings
Defoaming agents used in the manufacture of paper and paperboard


Product Details

For Animal Feed:
Suppressor 3721 is acceptable to use as a defoamer in the CIP tank where its residual level does not exceed 25 ppm in the fermentation broth for animal feed.
In accordance with, 21 CFR 570.30(a)(1) and 570.30(b), Suppressor 3721 is considered GRAS when used as a defoamer at a maximum concentration of 31 ppm in the blood processing stream. The end-products (dried plasma and dried red blood) may be used at a maximum level of 4% in feed for beef cattle, dairy cattle, and swine, and in pet food for cats and dogs.

Read and understand the SDS, Product Information Sheet, and Label instructions before using this product. Users must wear proper protective equipment. If you have any questions regarding the proper use of this product, please contact your Hydrite Account Representative.


17385 Golf Parkway
Brookfield, Wisconsin 53045
262-792-8721 Fax

© 2021 Hydrite Chemical - all rights reserved.