Dap Inc 21434 Plastic Wood Filler 4 Oz Walnut

Product Description

The DAP INC 21434 is a solvent-based, cellulose fibre wood filler formulated to harden and restore damaged wood surfaces to a finish that closely resembles natural wood. Supplied in a 4 oz container in a walnut color tone, this filler is engineered for high-performance repairs on cracks, gouges, and scratches. Once cured, the hardened material accepts sanding, staining, cutting, drilling, planing, varnishing, painting, and lacquering — making it compatible with standard wood finishing workflows. It meets Federal Specification TT-F-340C, confirming compliance with established performance standards for wood fillers.

This product is suited for both interior and exterior wood repair applications. It performs well on deep holes and large voids where thin or water-based fillers may shrink or fail to build adequate surface body. Typical applications include repair of wood trim, millwork, furniture, decking, and structural wood members prior to finishing. The walnut color tone provides a close base match for medium to dark wood species, reducing the number of finish coats needed to blend the repair. Licensed carpenters, finish contractors, and maintenance professionals are the primary installers.

Key Features

• Solvent-based formula hardens to a surface that can be sanded, stained, drilled, cut, planed, varnished, painted, or lacquered
• Cellulose fibre composition provides structural body suitable for large, deep holes
• Walnut color tone for compatibility with medium to dark wood species
• Rated for interior and exterior use
• Meets Federal Specification TT-F-340C
• 4 oz container — suitable for single-use repair jobs and spot repairs on larger projects

Compatibility

Designed as a general-purpose solvent-based wood filler for use on interior and exterior wood surfaces including trim, millwork, furniture, and structural wood members requiring repair prior to finishing.

Installation Notes

Application should be performed in a well-ventilated area due to solvent content. Clean the repair area of loose material, dust, and contaminants before applying filler. Allow adequate cure time before sanding or applying finish coats per the manufacturer guidelines on the container label. Solvent-based products require compatible finish systems — verify that topcoats are solvent-compatible before application.