Lately I've been noticing a bunch of chinese ebay sellers with white FBR that they sell as 'Wedding foam'. Has anyone had any experience with this stuff? Is it any good?
I have seen some of this foam here in my local hardwares shops in Hong Kong, they are used like FBR. The foam is quite dense and does come in 12mm sizes, but is very squishy and when pressed may not return beck to the same size. I use this for my darts because it is the only option i have but it is generally not very good.
Your top plunger rod likely isn't centered, that would account for the bad seal and crazy friction.
I think that could be the problem, but am not sure of a solution for it. I have tried using a 1.5 inch fender washer with a 3/8 ID for my seal,which fixes my problem of the slow plunger rod; but it only gets a 40% seal and does not fire a dart. I have no access to large hardware store here in Hong Kong and my hardware stores do not carry fender washers, is there any other way of centring the plunger rod?