I install a lot of separate back splashes. In laminates, and solid
surface.
Also, I seal countertops around walls etc. For the last 25 years, I
have used the same dispenser and it is the only one that I like. Not
cheap, but great.
I use it with cartridges.

http://cox-applicators.com/index.php...?product_id=20

I buy the colour EARTH, by the case. Very versatile and translucent
enough to 'pick-up' the adjacent colours of the countertops and walls.

http://www.axiom25.com/products.htm

When buying silicone, always observe the expiry date.. it means
something.

r