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Dont know if your planning on adding flotation but two part foam can and will absorb water over time if you get a leak. Two part foams are NOT waterproof. Contact the manufacturers, they will tell you it's not. I would suggest you contact "life proof" boats in bremerton wash, they use a Polethylene foam to make foam, collars for their aluminum boats. They have a fair amount of excess foam that they grind up into approx 1" size. they sew these into fiberglass bags and stuff them under the floors of their self bailing design. they have BAGS and BAGS of ground up foam they might likely give you. You could cut access holes in the top of your tubes and stuff then with this foam and that would give you flotation in case of a crack. the foam they use is very water resistant and is chemically resistant. Or you could use polyethylene pool noodles or packing material, lots of things come with it, refrigerators etc.... I love your thinking on doing doing something like this project.!!!!!!!!!!

Thank you sir

Part 3??

Is it waterproof? How has to preformed in the rain?

I've done a little bit of HDPE work (waterline for the company I work for, about 2000' in total so a decent understanding of butt fusion) cool project for sure and nice work on the bow. if i might add, i also worked in collision repair for a little bit, and when we would plastic weld most things we would taper the weld joint a little bit and melt a piece of steel mesh in there and then add filler to add a lot of strength. not sure how that works as you get to thicker materials like it looks like you're using, but might be worth looking in to.

👍👍👍👍

I can’t wait for part 3!!! Great project!

That stove Jack that you have to cut out yourself. I'm guessing you have to buy your own rubber chimney mount holder??

Wow looks good. 🎉😮

Welding temperatures look a bit hot. Extrusion welding would be the way to go here. /Plastics welding teacher and inspector ;-)

Hows the tent doing ....???? Love the video .... How high is it Any set up video's Any more info would be appreciated

When your Dad can make a home made C&C Table, your half way there ❤😂😊

Thanx for the review bro i might get one

Very nice project. Want to see it finished and on action. 👌🏻

I love your idea 😀👍

Nice to see good effort, the temperatures for HDPE welding are tricky because it will depend on your welding speed. Especially for hot-air or extrusion welding. But in general, you can use 220-230°c buttwelding, pressure depends on the welding surface. For extrusion welding the plast 220-230°c the hot-air 280-300°c.

Where can you purchase this tent ?

Do you know where to purchase ? They were on Amazon but gone now

Very cool, kool, or kewl..... anyway you wanna spell it this is very interesting. I am curious if one might use the strap ratchet for clamping that stuff? I mean your method is stellar & well done.... I'm here thinking about building a house boat type of vessel & saw this. I hadn't seen this material so I've subb'd Up to LQQK a bit deeper. peace

Exelente saludos desde Chile 🇨🇱👏

5194 Hand Mill

why not rent a hdpe extruder machnie?

Woodlander, for welding heavy HDPE plastic, could you use leaser welding, as it use controlled intense light for heat???. just a thought, what do you think? is it feasible, thanks Allan

I learn a lot about ur work sir, especially hdpe...god bless sir...from Philippines

Keep at it, the welding part was what I was really interested in and you delivered! Really hoping to see your project on the water soon! Cheers from Texas!

Plastics fabricator here, I love your ingenuity. We use similar methods, for our constructions. We recently built a barge out of HDPE. I salute your efforts 😊

Thanks for the review, , from Costa Rica. !!!! Pura Vida !!!!!

I would advise a good sanding and a thick layer of fibreglass after to hold the whole structure integrity in case of bad welding. But otherwise that is some DIY great idea to build your own boat 👍

I'm my personal experience these plastic welded HDPE items or bumpers are not strong at all. They have very poor flex when cold and Crack on the welds.

I forgot about this boat. It's great to get an update and see it coming together. When I first saw this, I thought it was excessive and probably weighs a ton, but then I thought about how indestructible this thing is going to be. This method would be great for a jetboat because it's tough enough to take heavy rock hits, but it would bounce back to its original shape rather than denting heavy aluminum plate. Looking forward to the next update in 2025🤣😘👏

Too strong... Really nice. What diameter do the pipes have? And can you also tell me the various thicknesses of both the tube and the plates? Thank you. Philip

Missing in Action

Jig and clamp making Ingenuity at it's finest! Thanks for Great Ideas! Happy Floatin'!

Better question, why build a 500 lbs boat ancor out of plastic??? Why not fiberglass or carbon fibre?

You're going to sink bro.

Not boring brother love to see this type of project

Love the idea

Your videos on this boat build, are really enjoyable to watch. Thanks for sharing and keep the videos coming!

if you had one of the welding rigs for these pe pipes you could make these in mass

How brittle will the plastic hul be in the sea where the temperature coul be down to 5c deg or lower ? Best wishes with your project 👍

Nice idea .. it’s a job but a good one. One question.. do you make air vents in the tube sections. I’m almost sure over pressure due to temperature change will make the welds weak eventually.

It wouldn't hurt to fill the tubes with high density expanding foam it would add rigidity to the pipe so you wouldn't have any joint failure an would add very little extra weight

80 PERCENT VIDEO WATCHING YOU WELD GIVE ME A BREAK

YA YOU ARE OUT IN THE WATER AND YOU TRUST THIS THING TO FLOAT

Great work!! Continue the series 👏🏽👏🏽👏🏽

Just found this, so my advice is way too late. Invest in a strip heater and try to keep all your welds on the suports. You can get a tacking tip and speed tip for your welder, which will give you a stronger weld as the slower you go will release more oil, reducing the penatration and weakening the weld. A vee scraper can be found at most paint suppliers and acidtone for cleaning the welding rode and weld surfaces after scraping them. Remember to rescrape when adding a new weld over an old one. The strip heater can bend nice 50×50 angle witch can be used for stringers.

Let's talk price comparison

How much does this boat weigh? Hdpe is not light

ive been a plastic fabricator for the past 7 years building polypropylene fire tanks and am currently working on a boat build myself , id invest in a leister welder to go over those beads and get it water tight. or use a real hand torch made for plastic . the leister hand torches are like 500 bucks but i know those sheets of hdpe are big money so i wouldnt cheap out on what your sticking them together with .

I may have missed it in part 1, but how much is this thing going to way when you are done?