Bio Based Grades Priced against the Composting Route They Need
Matching resin melt stability and wall thickness to regional waste facility residence times prevents unexpected landed part cost escalation.
OK Compost Home
Meaning
Independent conformity mark certification systems verify that biopolymer packaging degrades completely in garden composting environments. Certification bodies award ok compost home mark to flexible films and moulded containers that fulfill stringent disintegration and ecotoxicity criteria at ambient temperatures. The certification becomes invalid if a converter alters resin formulations or adds unapproved colorants.
Certification Scheme
Third-party auditing agencies perform rigorous laboratory testing to validate ambient biodegradation claims for commercial packaging products. Carrying the ok compost home mark requires verified biodegradation reaching ninety percent within twelve months without artificial heating. Testing protocols verify that degrading biopolymer packaging releases no phytotoxic residues or heavy metals into the resulting garden compost.
Clear mark labelling informs consumers that packaging items can enter private backyard compost bins safely.
Material Requirement
Biopolymer compounders formulate specialized resin blends using flexible aliphatic polyesters to meet ambient degradation speeds. Excess wall thickness prevents heavy moulded parts from passing disintegration tests.
Market Limit
Home compostable certification does not imply rapid breakdown in cold marine or soil environments. Non-industrial composting marks do not replace municipal organic collection compliance in regions requiring industrial standard marks. Uninformed disposal of home compostable films into conventional recycling bins causes polymer contamination in recycled resin batches.