MP10 firestop moldable Putty is composed of synthetic rubber and flame retardants. Unlike ordinary fireproofing putties, MP10 offers long-term durability without cracking or sagging. It maintains stable performance and shape across a wide temperature range, surviving both cold and hot weather, the prolonged high temperatures of electrical equipment, and persistently humid environments. MP10 can withstand fires for three hours or more, thanks to its exceptional fire expansion and charring and thermal insulation capabilities.

1. Fire ratings: 3 hours, 2 hours

2. CCCF certification, FM4990 approval

3. Testing standards: GB23864-2023, ASTM E814 

4. Other features,

* 30-year service life 

* High expansion performance 

* Excellent plasticity and reusability 

* No cracking, no sagging 

* Can be used for fireproof sealing of various through holes 

* Can be used for fireproof sealing of cable penetrations in various electrical cabinets 

* Can be used for fireproof sealing of various threading pipes and conduits