micro-balloon filler

The instructions suggest using micro-balloon filler for the bow end pour to reduce weight.....could I also use this in the seam fillets for the same benefit?

2 replies:

« Previous Post       List of Posts       Next Post »

RE: micro-balloon filler

The common wisdom on this forum has always been 'no', on account of the reduced strength.  Unless you like taking risks, I'd not use micro-balloons in fillet mix.

That said, as with much common wisdom, I've never seen a shred of evidence to support it.  Someone sometime has probably tested a microballoon-mix joint to failure and proved the hypothesis one way or the other, but I've not seen the report.

I'm sure that a micro-balloon mix is weaker, but experiments show that the fillets are way stronger than the adjacent plywood, so a weaker fillet may have no practical effect on joint strength.

« Previous Post     List of Posts     Next Post »

Please login or register to post a reply.


Special Financing with Blispay

 CLC's Fall Kit Sale