- Forms a tough seal that expands and contracts with boiler metal.
- Resists high pressure and temperature. No odors and petroleum-free.
- Once set, seal will not be dislodged by boiler cleaners.
- Note: Only steam enters the heating circuit of a steam system. Boiler Solder remains in the boiler water of steam systems and will not seal leaks in the radiator circuit.
- Will not harm rubber or plastic parts.
- Compatible with Hercules Cryo-Tek or other types of propylene glycol based anti-freeze products, chemical additives and boiler treatment compounds.
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