PU polyurethane sheet — 300 mm x 500 mm, thick A durable, elastic sealing and cushioning material with strong electrical insulation and oil resistance. Designed for mechanical seals, gap filling, anti-slip applications, and a wide range of industrial and home projects. Key benefits Efficient sealing and cushioning: Excellent elasticity and sealing ability reduce shocks, vibrations, and the risk of leaks. Ideal where reliable contact and gap compensation are required. Wear- and oil-resistant for long life: Made from high-quality PU polyurethane that resists abrasion and oil exposure, suitable for high-frequency contact and demanding working conditions. Versatile and practical size: Standard 300 mm x 500 mm sheet, thick construction for easy cutting and shaping to suit DIY, repair, and installation tasks. Strong electrical insulation: Good dielectric properties protect electrical devices and provide safe isolation between electronic components to maintain stability during use. What it solves Prevents leaks and seepage at joints and seams by conforming to irregular surfaces. Dampens impact and vibration to protect mechanical parts and reduce noise. Extends service life of contact surfaces in conditions with frequent movement or oil exposure. Provides a safe insulating barrier for electronics and electrical assemblies. Material, size and performance Material: PU (polyurethane) — high elasticity, abrasion resistance, and oil resistance. Size: 300 mm x 500 mm standard sheet; thick and practical for cutting to fit. Functions: sealing, gap filling, cushioning, anti-slip, mechanical sealing, electrical insulation. Typical use scenarios Machinery maintenance: Cut to shape for mechanical seals or gap fillers on pumps, gearboxes, and housings to reduce vibration and prevent oil leaks. Equipment installation and mounting: Use as anti-slip, cushioning pads under mounted equipment or between panels to protect surfaces and absorb shock. Electronics protection and assembly: Create insulating pads or spacers between components and housings to prevent short circuits and ensure stable operation. Suitable for Industrial and household projects requiring durable sealing, cushioning, or insulation. High-frequency contact points and complex operational environments where wear and oil resistance are needed. DIY model making, structural repairs, and device installation tasks where a reliable, cut-to-fit polyurethane sheet is required.