General product questions
Should I use a primer before applying silicone or adhesive?
On a dry, dust- and grease-free surface it is in most cases not necessary to use a primer.
Upon opening the tube, I see a small layer of oily liquid?
This phenomenon can occur sporadically and is called leaching.
What is the lifespan/durability of my product?
All DL Chemicals' cartridges, foils, spray cans and buckets are marked with an expiry date. How long can I keep an opened cartridge? And can I still use expired product?