Beware the glue

[spoke2570]

I just discovered that Mercury Adhesives foam safe CA does not bond wood very well. This was a Renegade Rigger.

After taking a blow from a floatie in the pond today, I noticed that a bit of hull sheet was starting to pull up. I pulled a little more, and found a nasty mess of goopy crap, especially where more glue was used. All sheeting pulled right off of the foam with little effort.

I just found this thread on a general Google search: http://teamflyingcircus.com/forum/sh...foam+adhesives. My guess was confirmed.

The stuff seemed to work super well on the foam to foam joints. Those were solid.

Thanks to Steve, I was just getting the thing to work really well, too.

pete b

[HOTWATER]

I used Mercury foam safe CA on my Renegade and I have NEVER had any problems with the glue not staying bonded.

[spoke2570]

ZIP KICKER is the only other chemical in the system on the laminations.

Epoxy was used for sealing, sponson/hull, sponson/sponson boom, transom, and flex shaft tube filler. The goo was not any more localized to the places that they went through the laminate system.

The foam/foam joints were made with the same CA and kicker. They were all great.
The sponsons, for example, peeled apart like a banana, with slime under the skin. The layers of depron inside were stuck together perfectly, and the sponson booms split before they came out of the depron block.

The use of kicker is new to me. I have previously sheeted foam only with aliphatic resins, or epoxies. I have never needed kicker for normal CA in wood/wood joints, nor have I used foam safe CA (I have been scared of it like diet soda and gluten free bread.).

I would love some ideas/experiences on this. Temperature stability? It is hot as balls in Florida.

pete b