Today we have just launched a product that we have been working on for over 2 years - E-Release (http://www.highway1.co.nz/release-agents.html).
This product is a New Zealand first and may in fact be a world first. We have come up with an environmentally friendly alternatively to using diesel as a release agent for asphalt. It is sprayed onto shovels, screeds, pavers etc to act as a release agent and stop buildup of the asphalt.  
The big benefits are that the product is non-toxic, bio-degradable, water soluble and does not cause the amount of damage to the bitumen that diesel does.
It comes in 200 Litre drums and 1000 litre tanks.