Some of our customers have had excellent results by placing wooden liners on the bottom of the truck beds, or by using polymer truck bed liners. The wooden liners absorb the release agent, extending its effectiveness. If there is material sticking to the truckbed, the problem will be made worse if liquid soap agent is sprayed on top, cooling down the truck bed. If the truck bed is kept warm, it will clean itself. Tarping the truck will also keep the mix hot during transport, and is strongly recommended.
Some agencies suggest silicone.
The mixture flows better under the paver screed. Silicone, however, can affect the binder testing of the modified asphalt, giving false results. Silicone can also irreversibly damage test equipment. If silicone is used, testing samples should be taken before the silicone is added. Uniform, continuous paver operation produces the highest quality pavement.