Whitmore Matrix EP 2 (15.88 KG) Matrix® is a calcium sulfonate complex grease that is highly recommended for difficult applications such as extreme pressure, water, heat, or chemical attack. The thickener system in Matrix® has a protective effect similar to that of molybdenum disulfide, protecting equipment from wear under difficult conditions of extreme load. Matrix® helps neutralize acids and also resists reacting with caustic materials. Matrix® grease has prevented corrosion despite years of exposure to phosphoric acid. A continuous temperature of 400°F (200°C) is within its safe range. It can withstand 550°F (288°C) continuously, provided the bearing is replenished every 30 minutes with normal quantities of grease. Occasional temperature spikes to 600°F (315°C) can be sustained for 5 to 10 minute periods without melting or carbonizing. Matrix® EP 2 is manufactured to NLGI grade 1.5 for use at a broad range of bearing speeds up to DN 200,000. Matrix® TK 2 (NLGI grade 2) is designed for slower moving bearings up to 150,000 DN. Matrix® EP 2 is the preferred grade for electric motor bearings. Matrix® 5M EP 2 is designed primarily for earthmoving equipment and other heavy-duty rolling stock applications. Matrix® 5M EP 2 contains 5% solid lubricants. Matrix® meets the Bucyrus International specification for multipurpose grease (SD 4711)