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Old 01-28-2011, 06:45 AM   #197
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Originally Posted by mkh8911 View Post
tvanware,
Did you go to the Atlanta Piedmont store or Nashville? I need 7 sheets for the entire floor ($1505.00). That is more than I paid for the trailer. I'm just having a hard time justifying the cost. By the time I drive to Atlanta to pick it up it raises the price to around $1,750.00. I can see $215.00 for a repair (in your case). I can't see $1,750.
Nyloboard issues;
I have followed this thread for a while now and decided to obtain some data from the company. I have placed a call to Georgia Plant requesting Product data sheet. Lady on the phone could not help me but she took my phone number promising a call back from a tech support. Few hours later call back was made and conversation went as follows;

me; I told him i had a interest in his product for a particular application.
he; what kind of quantities will you be buying?
me; changing his direction of conversation I proceeded to tell that I wanted to first make sure that is applicable for my intended use. I proceeded to tell him that we intend to use it on floors and decking in aluminum boats.
he; what lengths would you be installing?
me; On the average 7 feet.
he; What is your support grid work?
me; approximately 2 feet.
he; we do not recommend the 3/4" for that. You will have to upgrade to generation four which is 1.1/8" thick and glass reinforced.
me; why?
he; 3/4" will be much too spongy under foot when walking on it you will feel it. You need one foot square grid for support.
me; Can you tell me what is the expansion rate per 8' length going from 0 to 100 degree temperature swing?
he; We do not test this product at such extremes. Being in the floor of a building it will not see a grater temperature swing of more than 30 degree.
me; BELLS begin to RIIIIIING loudly. But my application will see such swings in temperatures and I would like to know its expansion rate and gain in flexibility in high temps. Can you provide me with data sheet before i commit my company to 50 sheets order? Can you fax it to me?
he; Yes I can but it may not be today.
me That will be fine. Here is my fax number, thank you and goodbye.

Here is a question for all of you PRO-Nylobard people. Would you still consider installing it in your trailer after such conversation? Installing a small single piece may be OK but when you lock up 28' length with fasteners how much and where to it is going to expand? Being supported on 4' span of framework, how soft is it going to be in 80 degree temperature if it requires 1 foot span support grid per factory recommendation? I am very concerned for all of you. Respectfully, "Boatdoc"
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Old 01-28-2011, 07:16 AM   #198
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I would like to follow Boatdoc with a direct observation concerning plastic products. First a disclaimer, I really like the idea and concept of nylaboard and truly hope it works for those doing an entire floor.

Now on to the observation. My step-father spent his career selling Ultra High Molecular Weight Plastic (UHMWP). He sold it to the iron industry to line buckets and conveyor underlayment. He sold it for any application that calls for one part sliding past another, etc. He currently has a six foor by two foot piece in his garage as a workbench top, and resides in South Carolina. Between the winter garage temps of the 20's and the summer temps in the 90's (note 70 degree temp differential), I estimate the expansion at 1" to 1 1/2". If this were a 34' long floor in my trailer, that would equate to almost 9" of expansion. Talk about floor heave!

I realize that nylaboard is not UHMWP, but it is more similar in nature than dissimilar. Perhaps being encased in fiberglass couple with the characteristics of nylon will mitigate the expansion.

I very much look forward to the reports of those using the product for full floor applications.
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Old 02-07-2011, 12:35 PM   #199
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Nyloboard Product data sheet

Hi boatdoc, any word on that data sheet. I haven't ordered my board yet as I found more work to do prior. Like they say, "don't look".
Anyway, I'm still curious about the thermal expansion. I only have the back 4' to do and I feel pretty good about using nyloboard since others have had no issues.


Thanks!
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Old 02-07-2011, 01:30 PM   #200
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Hi boatdoc, any word on that data sheet. I haven't ordered my board yet as I found more work to do prior. Like they say, "don't look".
Anyway, I'm still curious about the thermal expansion. I only have the back 4' to do and I feel pretty good about using nyloboard since others have had no issues.


Thanks!
Hi RaleighAir;
Made two requests now. No reply of any kind. It is very unusual not to provide the consumer with product data sheet.
I have asked for:
coefficient of linear thermal expansion
Level of Hydrogen cyanide under fire condition
Level of nitrogen
Level of oxides of carbon
No reply
When I have spoken to him on the phone he declined to answer claiming he did not have the info before him.
Thanks "Boatdoc"
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Old 02-08-2011, 12:24 PM   #201
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Nyloboard expansion

Hi all,
I enlisted the help of a plastics expert with over 40yrs experience in the biz to help figure this out. He was extremely helpful and took time out of his busy day to answer my questions. I didn't consider that the aluminum is expanding too - good point. His reply is copied below:

I would use this Plexiglas acrylic coefficient:

Product Inches/Foot/100 °F
Plexiglas® sheet .062
Aluminum .016

31 ft x 0.062 = 1.9 inches
31 ft x 0.016 = 0.50 inches

The floor will expand about 1.40” more than the aluminum frame over a 100F temp change.
BUT – keep in mind that you’ll be installing at 70F or so.
SO – when you pull that baby out to Death Valley, and the floor gets to 110F – that’s a 40F change
(31 x 0.062 x .40 ) – (31 x 0.016 x .40) = 0.7688 - 0.198 = 0.57 inches of floor expansion compared to the frame over the entire 31 ft.
And shrinkage when it gets to 32F freezing… looks like about 1/8” per 48x96 sheet either way.

Nylon has a coefficient about 15% greater than Acrylic – the bottom line is that you would lay down the Nyloboard with a small gap between the sheets – use a silicone sealant that can expand and contract to keep the seal. Maybe an “H” channel to allow the sheets to move?

Make sense?

As far as the UHMW material, we are seeing a lot of applications in the Marine Industry using a HDPE product called SeaBoard.
Of course, it expands even MORE than Nylon… but remember, it’s all relative to the aluminum framing!


I would think .57" over an entire 31' floor is acceptable, and in the 4' section I have to do the expansion would be negligible.
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Old 02-08-2011, 12:27 PM   #202
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I like the idea of the expansion joints. After all, isnt that the way they build suspension bridges? Sal.
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Old 02-08-2011, 12:40 PM   #203
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Those kind of movements are bad mojo - plexiglass is rarely anchored stationary, everything is slotted and the edge frames have large overlap depth. Usually one point will end up binding and everything else 'has tides' against that point.

Will someone with Nyloboard full sheet or long scraps please measure it cold and hot? Even shaded 70°F to full sun 120°F and accurate to 1/32" should settle whether the OEM has the additives and process to damp shrink & heave...
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Old 02-08-2011, 01:48 PM   #204
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Originally Posted by RaleighAir View Post
Hi all,
I enlisted the help of a plastics expert with over 40yrs experience in the biz to help figure this out.
Did your friend take into account that the Nyloboard product in glassfiber reinforced? This table shows the thermal expansion for a large list of common materials. Note as and example, from the list the value listed for glass fiber reinforced polypropylene is 1/3 of that listed for plain polypropylene. Assuming this holds true for the glass fiber reinforced Nyloboard product, per your example, there would only be a 1/16" difference in expansion over the 31' trailer length between the aluminum and the Nyloboard.


Quote:
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Will someone with Nyloboard full sheet or long scraps please measure it cold and hot? Even shaded 70°F to full sun 120°F and accurate to 1/32" should settle whether the OEM has the additives and process to damp shrink & heave...
I have access to a trailer in the process of being restored that has a full floor of Nyloboard. Here in WI, we are expecting temps of minus 8 degrees F overnight. The floor was installed in 70 degree weather. If there is a significant expansion variation between the floor/shell or floor/frame materials it will be VERY noticeable. I'll report back.
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Old 02-08-2011, 02:39 PM   #205
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Wouldnt a plywood floor be subject to expansion/contraction? Especially if it gets wet? Sal.
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Old 02-08-2011, 03:04 PM   #206
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Nyloboard is recycled carpet. I imagine if you have carpet in your trailer and it catches on fire you will get the same chemical fumes. I am not going to worry about a fire creating smoke that can kill you. If the trailer catches on fire everything burning in there can kill you. I do know Nyloboard is water and mold resistant.

They used to have all of the specs on their old website. I don't know why they took them down. I searched and found homes being built with Nyloboard and they are using it on boats. It gets good reviews.

If you guys are not sure with the product just use marine plywood. It is all good.

Brian
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Old 02-08-2011, 04:54 PM   #207
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There is a Wayback Machine that snapshots the internet - sometimes its complete, sometimes not... Here's a link to maybe their old website...

Internet Archive Wayback Machine
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Old 02-11-2011, 12:16 PM   #208
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I'll report back.

Several days ago I shlogged through the high snow banks to visit the interior of my friends '58 Overlander. The complete nyloboard floor is intact without any gaps at the seams greater than 1/16". Most seams are fully tight. The day I visited was approximately 75 degrees colder than the day this floor was installed.

I hope that satisfies anybody's curiosity regarding "shrinkage" and/or expansion as compared to plywood.
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Old 02-11-2011, 12:51 PM   #209
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Steve:

Living in Waukesha wisconsin qualifies you as an expert of cold weather. BBBRRRRRRRR!!!!!!!!!! We just sold my mom's cottage in Minoqua. I love Wisconsin. Best place for a Georgian to visit in July. Go from 100 degrees to a blistering 82 degrees in Minoqua.

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Old 02-12-2011, 07:41 AM   #210
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I finally cut and installed my nyloboard across the rear 3 feet of my 91' limited. Since my sheet was 3/4" I used an electric plane to finish the edge to 5/8" - it worked great with no smoke, chipping or other problems. Cutting and drilling was a breeze. I will of course reseal the bumper storage area etc since no leaks is the preferred state, BUT, if they do occur again in the future I wont have the floor rot, mold, mildew mess I have just corrected.
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