okuma 64 Posted May 27, 2009 I made my floats from Dyvinal (?). To strengthen the edges from chipping, I painted the floats with 2 coats of 2 part fiber glass gel. I put in some black dye and the results look good. And after 2 years there are no chips or major dents. Share this post Link to post Share on other sites
Timmoranuk 10 Posted May 27, 2009 I made my floats from Dyvinal (?).To strengthen the edges from chipping, I painted the floats with 2 coats of 2 part fiber glass gel. I put in some black dye and the results look good. And after 2 years there are no chips or major dents. The ideal solution is indeed Divynicell though the manufacturing costs and minimum volume of cnc or water jet cutting 30mm ID / 70mm OD tubes (to slip over ULCS buoyancy arms) are alarming. Share this post Link to post Share on other sites
bvanant 189 Posted May 27, 2009 The ideal solution is indeed Divynicell though the manufacturing costs and minimum volume of cnc or water jet cutting 30mm ID / 70mm OD tubes (to slip over ULCS buoyancy arms) are alarming. We have looked at both Divinycell and Corecell but neither are as tough as the Stix foam. I have the impression that the Stix stuff is a closed cell polyolefin that has some plasticizer in the pellets before molding, but am too lazy to look since the Stix stuff is cheap enough. Bill Share this post Link to post Share on other sites
diverdon 1 Posted May 27, 2009 I'm looking for a durable, non-compressable, closed cell foam like the foam on the Stix arms and floatation belts. Does anyone know what this foam is called? Thanks in advance, Tim One of my companys uses a lot of a closed cell, cross-linked polymer foam like this made by Alcan Baltec http://www.baltek.com/alcan/acsites.nsf/pa...4&type=.htm. It is not cheap prices vari from $2-10 per board foot. When ordered in industrial quantities. This foam comes in large blocks and we saw it up and laminate skins onto it to make panels at www.cattcousa.com Share this post Link to post Share on other sites
diverdon 1 Posted May 27, 2009 So after some research on the web I've found several closed cell polyethylene foams that I believe are the same thing as Divinycell but have one further question to pose.. I've found foam in densities from 1.7lb to 12lb/cu.ft.. Divinycell, as you may know, comes in 5lb or 6lb varieties. How would the buoyancy characteristics of the 12lb polyethylene differ from the 6lb Divinycell? Would it offer increased or decreased bouyancy? Would the increased density offer less compression at depth? Would the 1.7lb be brittle and more likely to degrade over time? Sorry if this is a dumb question but I have no experience handling this stuff.. Here are two of the suppliers I've been looking at for your reference: http://www.moldingsbest.com/Polyethylene.html http://www.vulcorp.com/webstuff/pefoam.htm Thanks! Chris The heavier it is the tougher and more damage tolerant it will be. With regard to the Alcan Baltec product I use even the light stuff is very tough. Share this post Link to post Share on other sites
