Durable pe300 sheet green 12mm-HDPE Sheets Manufacturer. PE300 Sheet Natural. PE300, otherwise known as HDPE (High Density Polyethylene), is a high impact strength grade of PE. Minimum we can cut to is. 1000mm x 1000mm. From: £42.72 excl. VAT. Buy now. 4/5 Machinability 5/5 Wear Resistance.