Nlgi 4

The phrase NLGI 4 refers to a high-consistency grade of lubricating grease that is classified as "Hard" or "Very Firm" according to the National Lubricating Grease Institute (NLGI) scale WikipediaSkf. With an ASTM penetration value of 175–205, its physical texture at room temperature is comparable to a thick paste or hard margarine Penriteoil.

Market Trends & Industry Insights

* Market Growth: The global grease market is projected to grow from USD 18.42 Billion in 2025 to USD 28.10 Billion by 2034, with specialized high-temperature and high-consistency greases like NLGI 4 seeing steady demand in industrial sectors TrendxinsightsFortunebusinessinsights.

* Strategic Niche: NLGI 4 is not a general-purpose lubricant (unlike the industry-standard NLGI 2). Its market share is concentrated in specialized sealing and high-pressure protection InterflonBuysinopec.

* Industrial Shift: There is a rising trend toward High-Performance Multiuse (HPM) grease certifications, driving manufacturers to improve the mechanical stability and water resistance of hard-consistency lubricants Nlgi.

Key Product Applications

NLGI 4 is primarily utilized where a permanent protective barrier is required or where softer greases would be displaced by centrifugal force or pressure Fuchs.

Commercial Sourcing Overview

Current B2B offerings show that NLGI 4 products are available primarily through industrial chemical manufacturers, with a focus on lithium-based and red-lithium formulations . Prices for industrial-grade NLGI 4 grease typically range from $0.60 to $2.80 per kilogram depending on volume and specific additives (e.g., Extreme Pressure/EP additives) .