Starrett 93221 Penetrant Lubricant 1 Gallon Bottle

Product Description

The STARRETT 93221 is a petroleum-based penetrant lubricant supplied in a 1-gallon amber bottle. It is formulated from hydrotreated light petroleum distillates and a calcium oxidate compound, giving it a light oil viscosity that spreads and penetrates quickly. The product frees frozen nuts, bolts, and metal parts, removes grease, tar, and grime, and protects against short circuits in high-moisture environments. It carries an NSF H2 registration, meets ASTM D655 and ASTM-B117 standards, and is VOC compliant. It is silicone-free and not rated for food-grade, extreme-pressure, or high-temperature applications. Flash point is 170.10 degrees F.

This penetrant lubricant is suited for general maintenance and repair tasks across industrial, commercial, and trade settings. Technicians and maintenance professionals use it to free corroded or seized fasteners, clean metal surfaces, and provide light corrosion protection. Its ability to displace moisture makes it a practical choice in environments where condensation or water exposure causes electrical short circuits or accelerated corrosion on metal components and assemblies.

Key Features

• Penetrates quickly to free frozen nuts, bolts, and seized metal parts
• Removes grease, tar, and grime from metal surfaces
• Protects against short circuits in high-moisture environments
• Maximum dielectric strength of 18,000 volts
• Silicone-free formulation — safe for use where silicone contamination is a concern
• VOC compliant and meets ASTM D655 and ASTM-B117 standards
• NSF H2 registered for incidental contact in non-food-grade applications

Compatibility

Designed as a general-purpose penetrant lubricant for use on metal fasteners, assemblies, and surfaces requiring corrosion protection, lubrication, or cleaning in industrial and commercial maintenance applications.

Installation Notes

Apply in well-ventilated areas and keep away from open flames or ignition sources, as the flash point is 170.10 degrees F. Power down and de-energize electrical equipment before applying to components in or near live circuits, even though the product offers dielectric protection. Wear appropriate PPE including gloves and eye protection when handling. Dispose of product and containers in accordance with local regulations for petroleum-based materials.