• PAO base oil with lithium soap thickener – Delivers a stable lubricating film and soft NLGI 1 consistency that spreads easily on plastic and metal surfaces while staying in place in guides, slides, and small gearboxes.
• White solid lubricants – Provide low friction and noise reduction without dark staining, supporting clean appearance in visible mechanisms and quiet operation in plastic gears, cams, and sliding interfaces.
• Wide service temperature range, -40 °C to 150 °C – Supports reliable operation from winter cold start to sustained high temperature service in automotive interiors, valves, and appliances.
• Good compatibility with most plastics and elastomers – Reduces risk of stress cracking, swelling, or softening in plastic housings, gears, seals, and rubber components that are in continuous contact with the grease.
• Low friction coefficient and low noise performance – Designed specifically for noise reduction of plastic parts and damping of vibration, which helps eliminate squeaks, rattles, and chatter in plastic rich assemblies.
• Low bleed and evaporation – Bleed around 2 percent and evaporation around 0.1 percent at test conditions help keep lubricant in the contact zone and support long service life without drying or excessive oil migration.
• Tenacious adhesion – Clings well to plastic and metal surfaces so grease is not easily flung off or displaced, which is important in oscillating parts, small gears, and components subject to vibration.
• Four ball wear performance – Wear scar around 0.7 mm indicates effective anti wear behavior for light to moderate duty contacts, helping extend life of small bearings, pivots, and sliding interfaces.

Squeaks, rattles, and buzz in plastic interior components and trim where customers directly hear or feel noise - MOLYKOTE® SK-623 is formulated for noise reduction of plastic parts and provides low friction, low noise lubrication for plastic gears, cams, and sliding surfaces, helping eliminate squeaks and vibration in automotive interiors, appliances, and office equipment. Plastic damage or swelling caused by incompatible mineral greases in mixed material assemblies - Because SK-623 is a PAO based grease with documented good compatibility with most plastics, it can lubricate plastic and plastic/metal interfaces without the stress cracking, softening, or dimensional drift associated with some conventional greases. Inconsistent feel or torque in small plastic mechanisms across temperature extremes - The wide service temperature range from -40 °C to 150 °C and controlled bleed and evaporation help maintain a stable film so valves, knobs, levers, and plastic slides feel consistent in both cold and hot conditions. Grease migration or dry out in enclosed plastic housings that must stay clean - Low bleed and very low evaporation mean SK-623 tends to stay where it is applied, reducing oil creep onto nearby optical, electronic, or friction surfaces and supporting long relubrication intervals in compact devices. Need for a single low noise plastic lubricant across multiple small mechanisms and platforms - SK-623 is designed for lubrication of plastic/metal parts and noise reduction of plastic parts, making it a strong candidate as a standard low noise plastic grease across automotive interior components, valves, and light industrial mechanisms instead of juggling multiple specialty products.