Apply grain filler on a guitar body
Black Grain Filler 200g for Guitar Finishing — water-based for open-grain woods
Intense black, water-based grain filler for open-grain woods like ash and mahogany. Packs pores with rich black pigment to create deep contrast and an ultra-smooth guitar finish before sealer and clear coat. Dry-to-sand in 2–3 hours.
Weight: 200 g | Base: Water-based | Dry-to-sand: 2–3 hours | Coverage: At least 2 guitars per jar | Wood types: Open-grain woods (e.g., ash, mahogany)
- Designed for open-grain woods
- Creates deep contrast by filling pores
- Easy application and clean sanding
- Use before sealer and clear coat
The Guitar Fabrik Black Wood Grain Filler (200g) is a water-based, dark grain filler for open-pore tonewoods, delivering deep contrast by holding intense black pigment primarily in the pores. This black grain filler guitar builders in the UK rely on goes on before sealer and clear coat. Dispatched from our UK warehouse with fast UK delivery. Explore the full grain filler for guitar range and our wider guitar finishing supplies.
Application
- Tools: ~P400 sandpaper for levelling, a flexible scraper (e.g. an old credit card), and a clean cloth or paper towel.
- Apply a thin coat and work across the grain to pack pores.
- Allow to dry, then level-sand until smooth so the black filler remains mainly in pores.
- Repeat a second application if the wood is very porous.
- If also using wood dye, apply dye first (as required by your method), then use the dark grain filler to reinforce pore contrast.
Benefits
Benefits include a flatter surface for high-gloss or consistent satin finishes, reduced sealer/clear usage, and minimised post-cure sink-back into pores. As a coloured grain filler, it draws out the natural pore pattern for striking visual depth.
Compatibility
- Open-pore woods such as Ash, Mahogany, Rosewood, Jatoba, and Paulownia.
Specifications
| Product | The Guitar Fabrik Black Wood Grain Filler |
| Weight | 200g |
| Base | Water-based |
| Intended Woods | Open-pore woods (Ash, Mahogany, Rosewood, Jatoba, Paulownia) |
| Dry-to-sand | 2–3 hours |
| Coverage | One 200g jar typically grain-fills at least 2 guitars (varies by wood porosity and application thickness) |
| Compatibility | Works with nitrocellulose, polyurethane, and water-based finishing systems |
| Use Stage | Before sealer and clear coat |
