PVC Bending No Kink - Piping Bending Using Heat Gun

Рет қаралды 162,088

Күн бұрын

Get a good heat gun, not a hair dryer
PVC becomes bendable around the boiling point of water - 200F or 100C.
People use heat guns, gas torches or stoves.
The secret to bending PVC without kinking is to not allow the kink to rise.
I use a secured board on top of the expected bending point to prevent any rise.
I have seen some advice of using tape over the bend point and filling the pipe with sand up to the bend point, but that sounds like too much work.
Actually, the easiest way is to buy pre-bended PVC pipe in 90s, 45s and 30s.
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Пікірлер: 54

@Demolishionist Жыл бұрын

another option that works well: Temporarily cap one end of the pvc, heat up some sand in your oven or over a burner/grill to about 250-275ºF, use a funnel to pour the hot sand into the pvc and cap the other end, let the pvc heat up then bend as much as you need and leave to cool. The sand will both heat the pipe and prevent it from collapsing/kinking.

@billsemenoff Жыл бұрын

But how do you keep the hot sand just in the bend area. Or do you make a forming jig for the entire length?

@84CORVETTEBILL 11 ай бұрын

@@billsemenoffyou fill the entire length of pvc pipe with sand. There is a KZfaq on that version btw. Good luck!

@Ihtiandr13 10 ай бұрын

@@billsemenoffyou could probably make a sand sandwich. Prefill with cold , then hot, then cold sand again. Probably premesure amounts as well.

@boris9331 7 ай бұрын

This 100%

@harshakumar9571 5 ай бұрын

are there any tips to created nested pvc pipes ( pipe within pipe) that are bent while still maintaining gap without kink

@RandyHanley Жыл бұрын

Thumbs up. Best hardware advice and hardware store on the planet!

@mmbengs 9 ай бұрын

Great advice and great comments! Thanks so much😊

@donjohnsmusic3116 Жыл бұрын

Thanks for posting this! Working on another PVC project that I need to bend some! Love it!

@petemiller519 Жыл бұрын

Good stuff, like the plywood squash trick. Thanks!

@arcticfox2416 Жыл бұрын

thanks - awesome tip. Will use this to fit a PVR downpipe.

@AnnaHome68 Жыл бұрын

VERY NICE

@hectorgarcia8691 10 ай бұрын

Thanks, my headache is gone 👍

@AnnaHome68 Жыл бұрын

VERY GOOD.

@1new-man Жыл бұрын

Always the best

@95ffd 3 күн бұрын

Great video and great ideas for PVC!

@andrewhills6535 Жыл бұрын

Not fussed on kinky benders , good vid by the way 👍🏻

@joedarden2276 Жыл бұрын

Outstanding

@onisgagan2481 Жыл бұрын

Thanks sir, I need to make a couple rod holders for my raft, they are from $350 to $500 to buy. If I can make something that works I’ll be damn happy…

@kenjackson8078 Жыл бұрын

I first saw one of those heat guns when I was in the Job Corps in the early '80s. The automotive instructor was using it to solder a carb float back onto its bracket. He told me that the Job Corps had originally bought 3 of them to be used in the gym locker room as blow dryers. They were soon removed and given to a couple of the training courses when they started "frizzing" the guys' hair.

@ronblack7870 3 ай бұрын

had one of these exact models. after about 6 months the element broke/ burned out. i found the replacement element cost more than the gun and the warranty specifically excludes the element. bought cheap guns ever since. you can get 1500 watt guns cheap. that's the max you can get from a 120 outlet anyway.

@markleach2177 11 ай бұрын

I do this but have a thin bent piece of aluminum to keep the heat in while using the heat gun.

@mariagdesjardin1000 10 ай бұрын

Huh. That's sch 40 PVC designed for water supply, right? I occasionally use EMT for projects outside of its intended use, never thought about using PVC for anything other than plumbing. Opens up a lot of possibilities!

@timcoulson7340 10 ай бұрын

Great advice! It looks like the PVC push bar on your screen door is painted. I've been making Halloween fencing out of PVC and CPVC. I sand each piece and then right before I apply paint, I clean the piece with acetone. The paint sticks OK, but if it was something designed to be handled multiple times a day like a door handle I can't imagine it would last very long. What is your trick to making the paint stick to PVC?

@MrHardware1 10 ай бұрын

I’m using rust-oleum painters touch 2X. It’s the ultra cover paint and primer spray paint. It’s a couple years old but I’m pretty sure that it’s still made but under another label now. Most spray paint now states that it’s for all surfaces including plastic. That’s the one I would be looking for.

@KellyJoSchuetz Жыл бұрын

fill it up with heated sand and it will be so much easier and kink free.

@DonCox-pi6yf Жыл бұрын

I am wanting to make a 30" diameter 1/2 circle with 3/4 x 11/2 pvc bar stock. Will this method work on my project?

@MrHardware1 Жыл бұрын

You’ll have to try, I never bent pvc barstock. If it’s the same material as pvc pipe I would.

@richardmoore6295 8 ай бұрын

we used to fill pvc conduit with sand, we did not have a heat gun so used a propane torch very carefully.

@ke6bnl Жыл бұрын

do you use a special paint to prevent the tubing from going bad from uv light. sun light??

@MrHardware1 Жыл бұрын

White PVC does not go bad in the sunlight, but when I want a particular color I paint it with fusion spray paint.

@rifleman7313 3 ай бұрын

Would bending the PVC weaken it to the point of it not being as structural as strong as the original straight piece of PVC?

@MrHardware1 3 ай бұрын

I know it’s not stronger but it seem to ‘temper’ it a little making it stiffer. Not as flexible.

@rifleman7313 3 ай бұрын

@@MrHardware1 Thanks, I was just curious and didn't know.

@propoolcontractor2746 Жыл бұрын

What kind of heat gun is that ?

@MrHardware1 Жыл бұрын

It is an old Milwaukee that I purchased back when I used to do a lot of laminate, and that heat gun would soften up the glue without ruining the laminate so I could remove it and reposition it.

@SuperScottschannel Жыл бұрын

Do you have to worry about fumes while heating the pipe.

@MrHardware1 Жыл бұрын

Not that I noticed, however if you had a meter to measure the parts per million while the pipe is being heated, I bet it would be elevated. I would think very little though.

@elanawilliams6148 2 ай бұрын

mind as well pull out all your tools just to heat and bend pvc, for a hoop garden I won't mind the knink

@Bluedevil710 7 күн бұрын

I have a question I'm wanting to bend a 3" 5' pvc pipe and I capped both ends already is it dangerous for me to use a heat gun just enough for me to Bend it a few inches 😅 I'm thinking not and probably need to jist buy new pipes but hopefully not

@MrHardware1 7 күн бұрын

The increased air pressure on the inside of that pipe when you heat it just may cause that pipe to bubble, as you are trying to bend it. If possible, I would suggest drilling a hole that you could take a sheet metal screw with a rubber washer under the head of it to resealed the pipe after you drilled an escape pole.

@Bluedevil710 7 күн бұрын

@MrHardware1 I thought the same as to make a small hole but what can I plug it with after so water don't get in it and ty for the reply

@alchemy1 Жыл бұрын

In other words if you need to bend a pipe only 45 degrees you got nothing to worry about. And if you just put hot sand inside the pipe, youi can bend it to your hearts content with no concern about any kinks. Pur your sand in the oven and heat it to 450 degrees, pour it in your pipe. No need to fill the pipe. Just block one of the pipe and pour it where you want to bend. When you are satisfied just pour the sand out from the other end.

@MrHardware1 Жыл бұрын

I just bent eight pvc rafters for a kayak rack in my complex here using heat gun. I was bending them in about two minutes each. My tougher bends. I do make a jig with the spacer and a plywood cap to keep them from kinking because I just can’t get the sand to the section of the pipe where I want to make the bend without getting the rest of the pipe too soft.

@alchemy1 Жыл бұрын

@@MrHardware1 The idea of confining the pipe by some means ( i.e. plywood) is brilliant. Yesterday I used your technic of heating and bending a 3 inch pvc used for drain and since I only needed a 45 degree angle I figured it won't need confinement. Plus I did not need to have a short length 45 degrees as long as my entire 3 foot pipe was at 45 was all I cared about. It worked just as the doctor ordered. 🙂 Thank you.

@hippo-potamus Жыл бұрын

You can't see shi8t with the plywood on top so how do you even know what is going on underneath it or if there is or is not a kink?

@MrHardware1 Жыл бұрын

The tubing can only kink as wide as the gap built by spacing the plywood off the base. There is a learning curve which I’m hoping this video will minimize. I ruined a few bends by not getting the pvc hot enough or even enough through the bend.

@magicmaker15 Жыл бұрын

Oh, I see.. the plywood "squashes" the pipe back into a round shape

@MrHardware1 Жыл бұрын

No, the plywood traps the pipe so it can’t kink as you bend it.

@garyjones7268 11 ай бұрын

You know it's easy if you cap it electrical tape on it put hot water then in a few minutes you can bend it easy.

@ralphsuffield8658 Жыл бұрын

Glad to see that safety flip flops.

@chris_758 6 ай бұрын

The idea is fine but the execution is painful. Oy. When I do this I like to put a spring inside, hook a vacuum hose to 1 end & turn it on to help it cool

@leftylou6070 10 ай бұрын

You're doing that all wrong. Throw that heat gun away and buy yourself a heat box. Take a piece of pipe and cut it to a workable length. fill the pipe slap full of sand, place an end cap on each end of the pipe, heat in the heat box, then form. The reason you get kinks in the pipe is from air space. Eliminate air space for a perfect bend.

@martinclark4637 26 күн бұрын

Leftylou6070 what do you use to heat your heatbox.?