I/O (Sterndrive) Conversion to Outboards

[tpenfield]

Another progress update . . .

I added a second layer of fiberglass (2415 stitchmat in this case) to the planing surface (upside down 'V' shaped portion, Joe).

Don't tell anybody, but I used plastic drop cloth to cover the surface after it was wet-out and pulled it tight in all areas to give the stitchmat a smoother surface. It also helps avoid dry spots . . .

I'll be putting a final layer of 1708 on the 'V' shape, and more glass of various types on the transom and sides.

It seems like I have lots of cloth, but not enough resin . . . I may need to get another pail of it. The resin I'm getting in the 5-gallon pails is 'Advanced Coatings 13886 MVP - No Wax'. I ran it by the resin Guru ( ondarvr ) and he thought it was pretty good.

 

[tpenfield]

Commentary . . .

I must say that doing a 'male-mold' approach is a lot slower than using a (female) mold as far as fiberglassing is concerned. Mostly because there is some amount of prep work (trimming, sanding, smoothing) before you can/should put the next layer on.

In a female mold (like the swim platform that I did back in 2019), you can just keep adding layers of glass without much prep work between layers.

Of course with this extension bracket, it would be difficult to make a female mold, given the funky geometry of it. The side panels have a reverse taper of about 1.5", so it would need to be done in half-molds that could be separated to release the 'part'.

Anyway, I digress . . .