Hard carbon soak
Dissolves the hardest carbon built up, on cylinder heads, EGR valves, DPFs, and Catalytic converters, manifolds, and exhaust valves
It begins to break down the carbon in a few hours.
Melts the hardest of carbons without scraping or scrubbing.
Washes off with water, to leave no residue.
It can be used to spray onto cylinder heads to remove built-up carbon and to assist in eliminating stuck and seized Diesel injectors covered in carbon residue. It can even be used on plastic manifolds to remove excess carbon by shrinking or warping the plastic out of shape.
Spray onto any surface covered in hard carbon, and allow to soak in for a few minutes before replaying until the carbon appears damp. Allow the product to soak in for a few hours for maximum results; if possible, water can be applied to the surface to remove the carbon if this is unsafe (as it may be a cylinder head on a vehicle). Wear gloves and wipe the carbon away with a damp rag; if any carbon is left, reapply the product and try again in 1 hour. For parts removed from the vehicle, soak them in hard carbon soak for 3 hours, hose off carbon with a high-pressure hose.