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Can I densify LDPE + HDPE w/ compression machine?

This topic contains 0 replies, has 1 voice, and was last updated by  Stephen Murray 8 months ago.

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Stephen Murray phtephen

Can I densify LDPE + HDPE w/ compression machine?

13/09/2018 at 23:38

Hi, new to the forum here, but really like the set up and the community vibe.

I work for a company that makes PE surfboards, the majority of our product is LDPE of various densities, however we do have a bottom layer which is HDPE, they are all heat bonded together so there are no adhesives used throughout the process. What I’m curious about is whether anybody has any experience with densifying LDPE or HDPE, I gather they don’t densifty together very well?

Right now we are focusing on repurposing our offcuts, we do have a recycling company who will take our virgin HDPE but our LDPE is too light and therefore too expensive to ship, so we think densifying it is the best idea, however if anybody knows of another method (or a company who could use it) I’d be really interested.

Ultimately what we would like to do is create recycling program whereby consumers would return our surfboards to us and we would seperate the HDPE layer from the LDPE and then densify and repurpose the output. It would be ideal if we could return it to our manufacturer and create a closed loop for our production.

I’m currently interested in building the compression machine, has anybody tried compressing LDPE or knows if it would or wouldn’t work? And if it wouldn’t why?

TLDR – Does anybody know of a densifier that works for LDPE and/or? And if I built the compression machine would it densify LDPE and/or HDPE?

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