TUTORIALS
MUGI EVO TEA RACER TUTORIALS MULTIMEDIA INFO

Basic Techniques - Gluing with Evostik

A tutorial on gluing?

While not an obvious subject for tips, gluing using Evostik (or your own local brand of contact adhesive) turns out to be something of an acquired technique.
The instructions that come along with the tube are rather general or a little vague, but one of the pointers is very relevant - spread the glue thinly!

Please follow all the safety instructions on the tube and packaging - especially the points about ventilation avoiding inhaling glue vapour!!!

Applying the glue

The contact adhesive dries quickly when it's spread over your gluing surface so it is advisable to apply the glue to a small area at a time, or start small and work along a larger area keeping a 'wet edge' going.

As with all contact adhesives you must apply glue to both surfaces to be joined. As in the photo below, squeeze a small amount of glue onto one surface, creating a pattern to cover an area.

 
APPLY THE GLUE QUITE LIBERALLY
APPLY THE GLUE QUITE LIBERALLY
Spread the glue

Now, using a scrap piece of twinwall spread the glue over the surface until it forms a uniform sheen on the twinwall. The thickness of the glue when spread out should be consistent and thinner than a sheet of paper (that's an estimate!)

 
SPREAD THE GLUE TO MAKE A UNIFORM SHEEN ON THE SURFACE
SPREAD THE GLUE TO MAKE A UNIFORM SHEEN ON THE SURFACE
 
Timed to perfection

The glue instructions say that 5-15 minutes should be left for the glue to become touch dry. In practice, however, this is far too long. You will see the surface of the glue start to cloud and look less wet within a minute. Now occasionally test the surface with a fingertip until the glue is just 'tacky'.

Now is the right time to firmly press both surfaces together and clamp if necessary. A clamped join will be required for high stress areas such as leading edges. Leave such joins clamped for up to 24 hours, the longer the better - though you can get away with ten minutes if you're impatient!

For dextrous modelers

If you are covering a long and thin glue area (such as a trailing edge) then you can use a technique I'm going to call 'squeeze-fingerwiggle'. Start at one end of the coverage, holding the tube of glue in one hand and then, in one action, squeeze a thin line of glue along the area while simultaneously following it with your other hand, wiggling your finger in order to spread the glue. It's easier to do than it is to describe!

Remember...

If you have used an entire tube of glue on one Mugi Evo then you have simply used far too much glue!

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