I just picked up a bottle of Megauir's regular, not high gloss, Endurance. I shook it but it's not a smooth consistentcy. There's little chunks in it. It seemed to work OK. Is this how this product is or did I get a bad bottle?
If it's chunky, then the gel has cured because it was exposed to air. Take it back. That's how it works. It cures in air to a firm gel, so that there is no sling.