Willow Ridge Plastics Plant
Centrally located in Erlanger, Kentucky, the Willow Ridge Plastic plant subscribes to the latest standards for the manufacture of plastics compounds. Regular batch checking and evaluation assure consistent quality with every bag.

Field and laboratory testing is performed at various locations to assure that Willow Ridge products and formulations perform under real-world conditions.

Toxicity Test
Ceriodaphnia dubia 7-day chronic bio assay Test
Pimephales promelgas 7-day Chronic Bio Assay Test
Fathead Minnow Acute Bio Assay Test

Degradation Test Standards
ASTM D3826-98
ASTM D5510-94
ASTM D5208-01

Biodegradation Test
OECD301B CO2 Evolution Test Ready Biodegradability Test

Loss Of Molecular Weight Test - Report 3801. Contact us today for our whitepaper.

Degradation Process
The first stage of degradation results in the film being reduced to a fine powder. This powder is totally inert and physiologically harmless to man, animals, and to plant life. The ongoing and irreversible break-down process follows a path of continuous shortening of the molecular long-chain structure of the polymeric material. Having started with a molecular weight of several hundred thousand the downward path continues until the polymer is ultimately returned to the natural carbon cycle as simple
compounds such as water and carbon dioxide.

• •  Photodegration
• •  Thermooxidation
• •  Hydrolysis
• •  Microbiological attach

(Degradable Polymers, Principles & Applications, edited by Gerald Scott & Dan Gilead, Chapman & Hall 1995)

Food Contact Applications
The active ingredients in PDQ-H are listed in Section B of EC Directive 2002/72/EC permitting its use in Dry food contact applications. PDQ-H has also been tested and found to comply with EC Directive 2002/72/EC for overall migration with data obtained being within the limit. These results permit the use of PDQ-H films in food contact applications. The ingredients in PDQ-H are listed in the "Code of Federal Regulations CFR 21" as safe for various food contact applications.

Heavy Metals
WRP’s degradable additives contains no heavy metals