Tyvek

Finishes, paints and coatings

Tyvek

Postby wysedav » Tue Sep 10, 2019 8:15 am

Has anyone used used Tyvek under their Alumiumn skinned teardrop? Seems pretty easy and an extra layer of protection. I'd use a little 3M 77 to hold it in place on the wood, overlap the roof over the sides and seal with Tyvek tape.
just wondering if it seems worth it...I have the Tyvek on hand already.

Thanks,

David
wysedav
Teardrop Builder
 
Posts: 40
Joined: Mon Apr 10, 2017 4:42 pm

Re: Tyvek

Postby halfdome, Danny » Tue Sep 10, 2019 8:38 am

I don’t see the need for it and the spray adhesive might melt it.
I use Wilsonart contact cement on the plywood and scuffed aluminum,it gives a great bond that lasts.
:D Danny
ImageImage
"Conditions are never just right. People who delay action until all factors are favorable do nothing". William Feather
Don't accept "It's Good Enough" build to the best of your abilities.
Image
Teardroppers Of Oregon & WashingtonImage
User avatar
halfdome, Danny
*Happy Camper
 
Posts: 5508
Images: 175
Joined: Sun Aug 14, 2005 11:02 pm
Location: Washington , Pew-al-up

Re: Tyvek

Postby Aguyfromohio » Tue Sep 10, 2019 1:17 pm

Tyvek is entirely polyethylene, same as a milk jug, so it's probably unaffected by common solvents.
User avatar
Aguyfromohio
Gold Donating Member
 
Posts: 303
Images: 61
Joined: Sun Jan 29, 2017 5:02 am
Top

Re: Tyvek

Postby RJ Howell » Tue Sep 10, 2019 1:49 pm

Okay, I have to ask... Why?
If your'e going to cover with aluminum, and it's wind and water tight... Again why?
I just see bonding issues for something not required. :thinking:

I love the curious mind though. :roll:
RJ Howell
Teardrop Master
 
Posts: 201
Images: 34
Joined: Sat Jul 27, 2019 6:08 am
Top

Tyvek

Postby Greg M » Tue Sep 10, 2019 11:56 pm

Will Tyvek stick with glues? Polyethylene is pretty slippery when it comes to adhesives.
Give a person a fish and you feed them for a day; teach a person to use the Internet and they won't bother you for weeks.
User avatar
Greg M
*Geek Extraordinaire
 
Posts: 1095
Images: 85
Joined: Mon Sep 12, 2005 12:40 am
Location: Victoria, BC, Canada
Top

Re: Tyvek

Postby Aguyfromohio » Wed Sep 11, 2019 8:02 am

Greg M wrote:Will Tyvek stick with glues? Polyethylene is pretty slippery when it comes to adhesives.



That is an excellent point.
In you can't glue to polyethylene or polypropylene with common adhesives, you need to use special adhesives or special techniques like flame treatment.
User avatar
Aguyfromohio
Gold Donating Member
 
Posts: 303
Images: 61
Joined: Sun Jan 29, 2017 5:02 am
Top

Re: Tyvek

Postby RJ Howell » Wed Sep 11, 2019 10:10 am

Greg M wrote:Will Tyvek stick with glues? Polyethylene is pretty slippery when it comes to adhesives.


According to the Tyvek website you can, but with water based. They also say to test first, so even they don't have a good answer. Most commercial use when glueing in hot glue, assuming sheets like doing veneer work.

I looked at this as a possible PMF. I just saw too many issues..
RJ Howell
Teardrop Master
 
Posts: 201
Images: 34
Joined: Sat Jul 27, 2019 6:08 am
Top

Re: Tyvek

Postby tony.latham » Wed Sep 11, 2019 11:51 am

Just seal the cabin with polyurethane or epoxy before you sheath it and be done with it.

Both of those liquids soak into the wood, unlike a membrane ––which water could wick under.

T
User avatar
tony.latham
Gold Donating Member
 
Posts: 3596
Images: 17
Joined: Mon Jul 08, 2013 4:03 pm
Location: Middle of Idaho on the edge of nowhere
Top

Re: Tyvek

Postby wysedav » Wed Sep 11, 2019 3:25 pm

Ok, I was just thinking it would be a good secondary barrier. I don't think anything really needs to be bonded to it. It's just a floating skin like the aluminum. If the seal at a window or vent to the aluminum fails this would still be there to keep the water away from the wood.

Probably not necessary, I'm sure the sealants are much better than 20 years ago.
wysedav
Teardrop Builder
 
Posts: 40
Joined: Mon Apr 10, 2017 4:42 pm
Top


Return to Skinning secrets

Who is online

Users browsing this forum: No registered users and 1 guest