Dap Inc 21400 Plastic Wood Filler 4 Oz Light Oak

Product Description

The DAP INC 21400 is a solvent-based, cellulose fibre wood filler designed to harden and restore damaged wood surfaces to a finish that closely resembles real wood. Supplied in a 4 oz container in a Light Oak color, this filler is formulated for high-performance repairs on cracks, gouges, and scratches. Once cured, the material can be sanded, stained, cut, drilled, planed, varnished, painted, or lacquered, making it a versatile option for finish carpenters, millwork installers, and maintenance professionals who need a workable, paintable wood repair compound.

The 21400 is rated for both interior and exterior use, making it suitable for trim repairs, door frames, window sills, cabinetry, and structural wood surfaces exposed to varying conditions. The Light Oak tint helps blend the repair into common oak and similarly toned wood species prior to finishing. It is well-suited for filling large, deep holes where a rigid, machinable repair is required rather than a flexible caulk or sealant.

Key Features

• Solvent-based cellulose fibre formula hardens to a dense, machinable surface
• Light Oak color aids blending into similarly toned wood species
• Accepts sanding, staining, cutting, drilling, planing, varnishing, painting, and lacquering after cure
• Formulated for large, deep hole repairs where rigid fill is required
• Rated for interior and exterior applications
• Meets Federal Specification TT-F-340C

Compatibility

Designed as an OEM-style replacement filler for use on wood surfaces in residential and commercial maintenance applications where a solvent-based, stainable wood filler is required.

Installation Notes

Application is typically performed by finish carpenters, millwork installers, or maintenance technicians. Ensure the repair area is clean, dry, and free of loose material before applying the filler. Work in a well-ventilated area due to solvent content, and follow all local safety regulations for handling solvent-based compounds. Allow full cure before sanding or applying finish coats.