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The new four-part integral abrasion-resistant tie pad and insulator assembly is designed to control rail seat abrasion on concrete ties. The components are manufactured from high-quality engineered polymers. The assemblies include a resilient and durable top pad, an anti-abrasion plate, a sand-resistant and water-repellent gasket, and the side post insulators. All components are assembled on snap fit retaining lugs designed to ensure security during shipping and service life and arrive at the job site as a single unit. The system is designed to seal out sand, dirt and water from the rail seat. Interlocking studs and dimples, which are an integral part of the plastic plate and pad, resist differential movement of the parts and improve longitudinal restraint, the company says. The pad shown is used with the Safelok III rail fastener.