Great concept Liam. You have captured so many overlapping issues here, protecting your safety whilst looking after the oceans, brilliant! The helmet design could also act as a great visual message to help create awareness for both issues. 

Do you have contacts with high pressure molding? These guys may also be of interest, https://www.epa.nsw.gov.au/your-environment/plastics/sustainability-partnerships/case-studies/great-plastic-rescue

Looking forward to seeing you project in action.

Thanks Uprising,

I have got two contacts, one contact is helping me get recycled material and the other might be helping me 3D print or vacuum form my helmet. 

Injection moulding is off the table for me due to how expensive it is to do it. However blow moulding, vacuum moulding or 3D printing will probably be how I want to manufacture my helmet.

Kind regards,

Liam

Hi Liam,

Unfortunately I don't have any knowledge on constructing helmets however I think this is a great idea which will significantly improve the safety of surfers and also seems like it is sustainable from your material selection. With your material selection, do you think that sea water and the waves will affect your overall design and remain durable? Also, looking at the straps for the helmet, can you ensure that it's adjustable for all users and also wont snap open while surfing? Aside from that I think this is a great idea and so much room to be customised. Great work!

Regards,

Amelie CQU Engineering Student