Waterproof/Sealer for float plane kit?
#1
Thread Starter

Joined: Jun 2007
Posts: 116
Likes: 0
Received 0 Likes
on
0 Posts
From: Lisle,
IL
Ok, I just thought of another question:
I'm sure at some point I will end up w/ a plane nose down in the water so...
If I'm building a plane from a kit, or even my Alpha 60(which is complete) is there a smart way to seal the balsa with some kind of sealer or water repellent?
My common sense tells me that the epoxy won't work w/ sealer, so I better wait till after it's all glued.
As always, Thanks ahead of time.
Dan
I'm sure at some point I will end up w/ a plane nose down in the water so...
If I'm building a plane from a kit, or even my Alpha 60(which is complete) is there a smart way to seal the balsa with some kind of sealer or water repellent?
My common sense tells me that the epoxy won't work w/ sealer, so I better wait till after it's all glued.
As always, Thanks ahead of time.
Dan
#2
Senior Member
My Feedback: (1)
I'd be reluctant to use ANYTHING before it's glued....sealer seals glue, too.
However, major subassemblies that are likely to get dunked (basically anything in front of the spar) should be sealed. I use water-based polyurethane varnish as a brush-on, or the stinky spray-can poly if I am spraying it. Polyurethane is very chemical-resistant, and covering sticks well to it. I also use WBPUV as the adhesive when I glass the floats or hull of a plane. Not toxic like epoxy, and plenty strong. It will Wash-off if I screw up, instead of soaking stuff in solvents.
However, major subassemblies that are likely to get dunked (basically anything in front of the spar) should be sealed. I use water-based polyurethane varnish as a brush-on, or the stinky spray-can poly if I am spraying it. Polyurethane is very chemical-resistant, and covering sticks well to it. I also use WBPUV as the adhesive when I glass the floats or hull of a plane. Not toxic like epoxy, and plenty strong. It will Wash-off if I screw up, instead of soaking stuff in solvents.
#3

Joined: Jan 2006
Posts: 2,517
Likes: 0
Received 0 Likes
on
0 Posts
From: Kalona,
IA
Ditto from me, exactly what JimCasey states. I love the water based polyurethane, or often called 'polycrylic'. It dries quickly, cleanup is a snap, you can brush it or spray it...etc.
Chad
Chad



