Vinylester and PVC foam (Divinycell)?

Is this a commonly used and good matching of materials? Does it result in a reliable bond resistant to delamination?

 

YES to all

 

Thanks. I thought so. Just double checking on some naysaying have been hearing.

Its pretty easy to see on the catana website since they use VE, PVC and Kevlar which is all used in the boat I am considering.

 

Yes it is a good combo

you just want to watch out for a dry bond on the foam
I like to pre wet the foam with a fairly thick coat of resin, then use a layer of mat as your first material

 

When I've used Divinycell, I used light half-ounce ( I think ? ) mat against the foam, then the unidirectional or biaxial. I have seen no signs of delamination from the foam, the glass layers will delaminate from each other before that happens, imo.

 

Check with the manufacturers of the foam for suggestions.

I seem to remember they recommend a product called Dyvellete or similar, a thickened resin, as the interface between the foam and glass.


PS - found the product info

 

Core bedding putties are used typically in contact molded situations, great products & low stress when used with contour cut foam.
Jeff.

 

When using Divilette and contour foam wrap a bit of heavy plastic around a cheapy orbital sander and use that to vibrate the foam into the bedding.
If you are doing a large areas you may want to invest in an air driven vibrating roller.