The only "cold" application bedliner I will use is SPI. The commercial "hot spray" application liners have been a good durable product but the cold application duplicolor,bondo,eastwood,etc have a reputation of failing in short time.
Barry @ SPI has developed a cold spray bedliner that tests with the best of the hot spray commercial applications.
To get the best results from either type system they need to be applied over epoxy primer. SPI epoxy is my choice for performance, ease of use and cost.
SPI Bedliner Info