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Seal-Up is a unique combination of modified sodium silicate
(liquid glass) and copper. Whilst in the bottle or mixed with
water, it remains liquid with the copper sinking to the bottom.
Seal-Up cures by exposure to the atmosphere and turns into a
solid ceramic substance enriched with copper. The copper has two
effects: first of all it strengthens the weld and then it
transfers heat, thereby helping to eliminate hot spots. Seal-Up
bonds with all metals (and even some plastics) and builds a
ceramic-metallic weld, which is extremely strong, high heat
resistant and permanent for the life of the engine.
Seal-Up will easily repair holes of up to 1mm diameter and
cracks of any length up to 0.5mm wide (both of which would
result in major coolant loss). Seal-Up, once cured, will
withstand temperatures of up to 540ºC (1000ºF) and pressures of
up to 3000 psi. It is designed to expand and contract with the
radiator or block and is also heat conductive in order to
eliminate hot spots. Seal-Up should also be used immediately
after an engine rebuild to ensure that the head, gaskets and
other weak points in the cooling system are properly sealed.
This will help to avoid the frustration of having to 'fix the
Seal-Up will be most effective if, after treatment, the cooling
system is drained and left empty for 2-3 hours or preferably
THE PROFESSIONAL'S CHOICE
Seal-Up fixes leaks in:
Seal-Up is as easy, clean and simple to use as adding anti-freeze.