Enduro Clear Poly is a high-performing commercial-grade water-based topcoat fortified with polyurethane that delivers a clear, tough, durable and abrasion-resistant finish. It does not require a topcoat. Clear Poly can be used on any project where more solids (28%) and durability are desired. General Finishes White Undercoat is similar to General Finishes Sanding Sealer with the addition of white colorant to provide a primer undercoat for white/off-white wood finishes. The high solids facilitate a fast film build and sand easily. Use as a basecoat for pigmented acrylic finishes. It dries tack-free in 10-20 minutes. Particularly effective on MDF.