FAQs - Frequently Asked Questions
Oxo-biodegradation process uses two methods to start the biodegradation. These methods are Photodegradation (UV) and Oxidation.  The UV degradation uses UV light to degrade the end product.  The oxidation process uses time, and heat to break down the plastic. Both methods reduce the molecular weight of the plastic and allow it to biodegrade.
Yes, end products manufactured with our additives can be recycled. The small amount of oxo-biodegradable products in the waste stream dilutes the additive. Most applications using our additives are ones that cannot be recycled, or in areas that don't offer collection and recycling.
After complete biodegradation the end results would be H20, CO2, and biomass.
Oxo-biodegradable plastics are non toxic and contain no heavy metals.
Yes, no major changes in processing conditions Are required.
Our additives can be used in all major plastic manufacturing processes.

Our products can be used in PP, PE, PS, PET, and some other resins. We recommend 1% to 3% loading of our non-starch additives in films, and thin molded products. For thicker applications please check with WRP.

We recommend our Polystarch additives be loaded at 25% in films, and can be loaded upto 75% into some injected molded applications.

We recommend oxo-biodegradable end products be used within 6 months of manufacture. The proper storage conditions would be, dry, protected from UV light and from heat over 110 degrees F.
Our PDQ-H and our Polystarch Plus H meet the requirements for use in food contact applications.

There are several labs that can test for oxo-biodegradation. WRP will conduct testing on end products manufactured with our additives. This testing is also used to determine the most cost effective loading of additive to meet the requirements of the customer.

Yes, we offer our UV-H additive that is used in films at 2% loading to achieve degradation with in the 2 to 4 month range, depending on the area of the world the film is used in.
Yes, we offer our Aquanil for use to solve any moisture related process problem, with Polystarch and other resins that have a moisture problem.

AQUANIL can be used when processing wet resins without pre-drying the resins, to remove the moisture and solve moisture related problems.