How to apply silicone to an edge (tidily)

caulkingsilicone

How can I coat an edge with silicone?

There are caulking tools for all kinds of joints such as these, but there seems to be no such tools for edges.

I tried using my fingers, but this is far from tidy.

I'd need a caulking tool in such a shape:

enter image description here

Can such a thing be bought? Where? I tried making it myself by cutting a caulking tool like in the link above, but I cannot get close to the form needed with a knife.

Or can I do it in another way?

What tool or technique do I need for applying caulk to an edge?

(What do I need that for?
I have a counter top made of chipboard, laminated with melamine resin. There is a little gap between the coating of the top and the coating of the side, so at the edge the chipboard is visible. This is where moisture can get in. By putting silicone on it, I could seal it against moisture.)

Best Answer

There is a little gap between the coating of the top and the coating of the side

First is to make sure the "coating" is securely glued down.

I use painter tape to mask off any area that i do not want caulk on, put the tape right up the the edge of the gap on both sides.

Apply the caulk with a caulk gun, careful to not apply too much. I then dip my finger into denatured alcohol or water and smooth the caulk wiping away any excess. Smooth again, pull the tape off, Then lightly smooth any anomalies. (Takes practice to get the right touch)

A photo of the edge may provide info for more advise or for alternatives to caulk.