Expanding Foam / Gap Filler

[Delta Whiskey]

I think it was mentioned on another forum, (not as good as this one) that someone had used the expanding foam, to strenghen u/c on a model, by making a little mould of some sort, and filling with the foam.

Anyone tried this?

[Former Member]

[This posting has been removed]

[Delta Whiskey]

Ok Thanks Eric, the "gloop" do you know if it set hard and therefore gives added strenght? I guess it also has to be light enough !

[Erfolg]

Delta

 

I have used a number of the Polyurethane adhesives, including Gorilla.

 

For most of us modellers, the number of time you tend to use them is limited. The pot life is quite short and the quantities you buy the stuff is large. They react with moisture, the irony is there appears to be a lot of moisture about even in a sealed container (all mine have been left overs from non modelling work, but not old).

 

As an adhesive, they are fine. Better modellers than me would wince at using them at all. As it is the gap filling which is attractive and water resistant. So for use on a foamy which is damaged and lost some of the foam, very attractive.

 

For quality strong joints the PVAs are hard to beat.

 

Gorilla is over hyped, I guess it is the name, it isjust another polyurethane.

[Bert]

I know this isn't what you are going to use it for but be carefull using Gorilla glue for sticking in servos. It has a habit of expanding into the servos works through the join in the case.

 

Bert

[Andy Freeman]

I guess what you are driving at is making a simple composite structure from the outside in.

 

The foam by itself is not going to have any structural integrity but filling a hollow structure may well introduce some beneficial properties.

 

Of course a diagram or fuller description might help here.