Contact   Imprint   Advertising   Guidelines

Urethane rails?

Here you can exchange your experience and datas about your home build boards
sijandy
Very Frequent Poster
Posts: 621
Joined: Mon Sep 03, 2012 12:36 pm
Style: freestyle
Gear: kites and boards
Brand Affiliation: None
Has thanked: 0
Been thanked: 0

Urethane rails?

Postby sijandy » Tue Feb 19, 2013 8:21 am

Iv'e been making boards for a while now and have always either wrapped the rails or used an eposy filler but i'd like to try the 'sandwhich' style with urethane rails. Having never worked with it before my knowledge is zero and seeing as there are so many different types/grades i'd thought i'd ask what people are using and what works best?

BWD
Very Frequent Poster
Posts: 3848
Joined: Thu Jun 05, 2003 3:37 am
Has thanked: 2 times
Been thanked: 81 times

Re: Urethane rails?

Postby BWD » Tue Feb 19, 2013 5:37 pm

Word on the street is hardness 80, cure time not too short, mix and pour like resin, scuff with coarse sandpaper before glassing, as I recall. Stick with epoxy myself, less bottles of goo to buy and keep track of....

criznach
Medium Poster
Posts: 170
Joined: Mon Nov 28, 2005 11:44 pm
Brand Affiliation: None
Location: Great Falls, Montana, USA
Has thanked: 0
Been thanked: 0

Re: Urethane rails?

Postby criznach » Wed Feb 27, 2013 6:39 am

A friend and I have a season on some boards made with Polytek 15-6. Tinted and plain off-white. Seems to be holding up. It's a little brittle at first, but once it's fully cured it seems to dent rather than crack. Had no issues with epoxy sticking.

http://www.polytek.com/index.php?dispat ... ory_id=249

A few gotchas...
Sets super fast. 5-10 minutes is all you get.
Pour as temps are dropping - evening.
They sell a UV additive. Using it seems wise.
Sand any cross-grain on your core to prevent bubbles.


Return to “Gear Builders”

Who is online

Users browsing this forum: No registered users and 131 guests