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Puro Renewables - Model Oysterplast -Composite Bioresin for HDPE, LDPE, LLDPE, PET, PP, & PVC

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Calcium Carbonate Composite solution with 71% lower carbon footprint versus traditional resins.

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carbon footprint

contaminated groundwater

groundwater aquifer

coastal pollution

groundwater contamination

Masterbatch for multi-use and disposable products
Sustainable calcium carbonate (CaCO3)from oyster shells
Carbon Negative – 71%* less CO₂ than fossil-fuel resins
- Replace fossil-fuel-based resins up to 53%
- Lower carbon footprint up to 50%
Universal equipment compatibility
Recyclable
Food safe, GRAS by FDA

On average, Oysters sequester 8 grams of carbon to make their shells.
Oysters actively remove “new” carbon (C-14) from the environment as they make their shells.
Calcium carbonate (CaCO3) derived from oyster shells has 181% less CO2 than Precipitated Limestone CaCO3
Oysters are biorenewable, so they will regenerate and, in the process, continue sequestering carbon in the environment.
Oysters are biowaste and pollute coastal communities. We utilize discarded oyster shells to reduce reliance on fossil-fuel resins.

Limestone CaCO3 is entirely old “fossilized” carbon (C-12) and a carbon positive material.
Limestone CaCO3 mining is environmentally destructive and destroys the ecosystem and habitats around the mine.
Limestone mining contaminates groundwater and aquifers around the mine.
Limestone mining removes support rocks and can lower the water table causing sinkholes.
Limestone mining creates dust and can a?ect urban and rural residential areas downwind.