Flexible, plastic, black, 1 1/8” trim material??

[Chotu]

Originally Posted by s/v Jedi

An U channel won’t go through the corners without the sides bending out and away from the bulkhead. It is the same length as the back of the trim and won’t stretch to become longer in the corners.

This is why all the options I bring forwards are a flat material that will allow itself to be shaped in the opening when thin enough.

Sure it does. The trim is everywhere. It just needs to be thicker for my application.

[s/v Jedi]

Originally Posted by Chotu

Sure it does. The trim is everywhere. It just needs to be thicker for my application.

Whoa, that is not the U-channel you posted before. This is a flexible, vinyl or rubber trim. It only comes in small sizes.

The picture you posted before looked like it even had an aluminum core with plastic covering.

[Chotu]

Originally Posted by s/v Jedi

Whoa, that is not the U-channel you posted before. This is a flexible, vinyl or rubber trim. It only comes in small sizes.

The picture you posted before looked like it even had an aluminum core with plastic covering.

Well, that’s what it’s called when you see it online. I’m just going off what the vendors call it. It’s called u channel trim on their websites



It’s used around some car doors too. The aluminum in the original is a cross section so there are millions of tiny aluminum “staples” inside that particular one.

I don’t need the metal reinforcements at all. So any type would do.

They’re cheating in this picture I think since they aren’t bending it the hard way, but still. The stuff is ubiquitous. And unfortunately, hard to find in 1 1/16, 1 1/4” sizes

[s/v Jedi]

Originally Posted by Chotu

Well, that’s what it’s called when you see it online. I’m just going off what the vendors call it. It’s called u channel trim on their websites

You never posted that picture before. Attached is your OP with picture. This is what I addressed as having a metal core and not being able to bend into your corners.

Feel free to now post the rubber trim, which is made for sheet metal and thin fiberglass and which will go around corners. I haven’t seen that for anything thicker than 3/16” or so.

[jamhass]

For "blind" openings (those you only see one surface) in thicker panels (you mentioned 1 to 1 1/2 inches thick) you could use a router to relieve the backside and use a more readily available trim.

[Chotu]

Originally Posted by s/v Jedi

You never posted that picture before. Attached is your OP with picture. This is what I addressed as having a metal core and not being able to bend into your corners.

Feel free to now post the rubber trim, which is made for sheet metal and thin fiberglass and which will go around corners. I haven’t seen that for anything thicker than 3/16” or so.

Those metal cores absolutely can bend into the corners. They are like a million “staples” inside the flexible trim. They are made to take corners.

Thanks for your input. I guess you haven’t really seen much of the stuff at all. You haven’t even seen more than 3/16 on rubber trim? And you don’t understand how the other stuff works? OK. Thank you for posting on the thread. I appreciate the help, but it looks like you just haven’t used this stuff or looked at it in detail before.

Thanks for giving it a shot though. Brainstorming is what it’s all about.

Here’s how the one from the beginning of the thread actually works, FYI.

[Chotu]

Originally Posted by jamhass

For "blind" openings (those you only see one surface) in thicker panels (you mentioned 1 to 1 1/2 inches thick) you could use a router to relieve the backside and use a more readily available trim.

It’s a cool idea and I think it would work for wood, but I don’t think it’s going to work for a foam core panel. It’s going to take away half of that panel on the back. And I don’t think the strength will be there anymore. It would be prone to getting destroyed when I hit it with some heavy object.

[Narfi]

https://www.outwater.com/products/zz-114/ Should work well on straight edges, but not rounded corners, sharp corners could be done very nicely thought.

By googling 30mm pvc channel I found this,
No.15 Large Edge Trim 30mm W * 21mm H | Edge Trim Large U Channel

If you only need the L for where you can see,
https://www.ebay.com/itm/UPVC-WOOD-E...-/281750295730

[pilott]

You could rout a slot in the thickness of the panel, and use T section trim?

[Chotu]

Originally Posted by Narfi

https://www.outwater.com/products/zz-114/ Should work well on straight edges, but not rounded corners, sharp corners could be done very nicely thought.

By googling 30mm pvc channel I found this,
No.15 Large Edge Trim 30mm W * 21mm H | Edge Trim Large U Channel

If you only need the L for where you can see,
https://www.ebay.com/itm/UPVC-WOOD-E...-/281750295730

You found it!!!!!!!

Why is the stuff I need always readily available OUTSIDE the USA but not inside?? Happens constantly.

That BingAU U channel is it. Exactly. If I could figure out how to source that it would be perfect. Comes in all the sizes too.

Some had suggested (and I think it could be worth a shot if flexible isn’t available) to heat bend harder pvc ones into the corners. All my corners are proper boat rounded unfortunately. None are square.

We’re getting there...


I wrote to Bing AU to see if they have a reseller here.

Note: the out water link is one I called about. They are the ones that have ridiculous production runs you have to buy for that product

[s/v Jedi]

Originally Posted by Chotu

Those metal cores absolutely can bend into the corners. They are like a million “staples” inside the flexible trim. They are made to take corners.

Thanks for your input. I guess you haven’t really seen much of the stuff at all. You haven’t even seen more than 3/16 on rubber trim? And you don’t understand how the other stuff works? OK. Thank you for posting on the thread. I appreciate the help, but it looks like you just haven’t used this stuff or looked at it in detail before.

Thanks for giving it a shot though. Brainstorming is what it’s all about.

Here’s how the one from the beginning of the thread actually works, FYI.

It won’t. It will make the turns on that acrylic in the picture just fine, but not the inside bends in the radius of your panels with the dimensions of the trim shown. The picture where it does make those turns... I don’t think it has a metal core and I have used exactly that on 1/8” thick aluminum; it can make any bend as it’s very flexible rubber, almost like elastic. Same as grommets. For me, it shrank over time which was a fail.

[Chotu]

Originally Posted by s/v Jedi

It won’t. It will make the turns on that acrylic in the picture just fine, but not the inside bends in the radius of your panels with the dimensions of the trim shown. The picture where it does make those turns... I don’t think it has a metal core and I have used exactly that on 1/8” thick aluminum; it can make any bend as it’s very flexible rubber, almost like elastic. Same as grommets. For me, it shrank over time which was a fail.

So heat forming pvc then into the corners?

[s/v Jedi]

Originally Posted by Chotu

So heat forming pvc then into the corners?

Can’t see that succeed. If you want it to go over the edge to the front side then the way that is done is using four corner pieces plus four straight pieces in between. Glue with CA glue, then into the opening with gap filling adhesive.

Corner pieces come with matching straight trim. Like this: https://www.amazon.com/SeaTeak-60836.../dp/B0042A0GH6

[Chotu]

Originally Posted by s/v Jedi

Can’t see that succeed. If you want it to go over the edge to the front side then the way that is done is using four corner pieces plus four straight pieces in between. Glue with CA glue, then into the opening with gap filling adhesive.

Corner pieces come with matching straight trim. Like this: https://www.amazon.com/SeaTeak-60836.../dp/B0042A0GH6

Legitimate question.

The pipe insulation can be done with one seam and looks better. Why does the pipe insulation work and a similar type of trim won’t?




This is pipe insulation installed as trim on my boat. Actually, hardly installed. Just pressed into place and staying fine. No adhesive, nothing.

That little odd shape at the corner is what you’re getting at earlier?

[s/v Jedi]

Originally Posted by Chotu

Legitimate question.

The pipe insulation can be done with one seam and looks better. Why does the pipe insulation work and a similar type of trim won’t?




This is pipe insulation installed as trim on my boat. Actually, hardly installed. Just pressed into place and staying fine. No adhesive, nothing.

That little odd shape at the corner is what you’re getting at earlier?

The pipe insulation takes the shape because it is made out of foam and has a very high compression factor.

The reason you don’t find the product you’re looking for is that it doesn’t exist. What works, like the pipe insulation, is simply not durable enough: it would rip off when using the space, pulling stuff out or putting it in continuously. It would also deteriorate quickly and look bad.

This is why all carpenters use the trim that I linked to above. Most will fabricate it themselves as all you need is a table-saw, bandsaw and router table, allowing any custom radius, thickness, material etc.
Look at pictures of boat interiors: they will have that kind of trim or, when using high quality plywood like Baltic birch or exotic Bruynzeel, use a roundover bit on the openings showing the plies as a decorative feature.