A Beginner’s Guide to Using Lacquer Woodworking Finishes

Woodworking Finishing with Lacquer
Image

Lacquer wood finishes can provide an incredible, long-lasting sheen to wooden furniture and projects when applied properly. From crystal clear gloss finishes to silky smooth satin sheens, lacquer has been enhancing wood grains for centuries with its quick drying times and durable protection. This guide will walk through everything a woodworking beginner needs to know about harnessing the beauty and resilience of lacquer.

Key TakeawayDetails
Lacquer enhances wood grainThin lacquer layers allow more natural wood look to show through while perfectly replicating fine grain details
Dries remarkably fastAllows quicker handling and applying additional coats; full hardening in under an hour
Easy for beginners to applySelf-levels well to achieve smooth consistency without high barrier of skill
Provides good protectionWhen cured, resists water rings and is fairly scratch resistant
Available in various sheensFlat to high-gloss depending on ingredients, drying times, and application techniques
Requires proper preparation before finishingSmooth, dust-free sanded surface allows lacquer to adhere and flow correctly
Apply with brush, sprayers, or wipingSpraying allows thinnest coats and maximizes clarity
Fuses with wood for lifelong bondCuring process takes 7-14 days to reach full strength
Durable but still prone to scratchesUse felt furniture pads; avoid harsh chemicals
Safe for children’s items when fully curedWater-based options are best choice

What is Wood Lacquer Exactly?

Wood lacquer is a type of fast-drying solvent-based finish that has been used for thousands of years originally in China and Japan. In contrast to slower drying surface finishes like polyurethane or oil, modern lacquer dries remarkably fast, allowing multiple coats to be added in quick succession.

The most common type of lacquer available today uses nitrocellulose as the resin base dissolved in a solvent carrier. This gives the lacquer excellent clarity and flow while maintaining its quick dry time. Lacquer hardens through solvent evaporation rather than chemical curing like other finishes.

While mainly seen as a decorative finish, wood lacquer also provides good protection qualities for furniture and other projects. It resists water rings, is fairly scratch resistant when cured, and can be easily touched up if damage does occur down the road.

Key Benefits of Choosing a Lacquer Finish

There are several reasons why lacquer has been a popular woodworking finish option for generations:

  • Enhances Wood Grain – The thin consistency of lacquer allows more of the natural wood look to show through. Lacquer perfectly replicates fine details in the grain.
  • Quick Drying – Full hardening can occur in under an hour, allowing for quicker handling or additional coats.
  • Easy to Apply – Lacquer self-levels well, achieving smooth consistency without a high skill barrier.
  • Durability – Correctly cured lacquer stands up well to general wear and tear when used for furniture or cabinets.

Of course, there are some potential mistakes to avoid when using lacquers as well (covered below in the FAQ section). But with proper preparation and application, lacquer provides an unbeatable enhancement.

Necessary Wood Preparation Before Applying Lacquer

As with any woodworking project, proper preparation is crucial before beginning the finishing process with lacquer or any other varnish.

After cutting, sanding, and assembly has occurred, the raw wood surface should be smoothed progressively with 120, 150, and finally 220 grit sandpaper. Ensuring an ultra-smooth sanded surface allows the lacquer to adhere and flow correctly. All dust must be carefully removed prior to the first seal coat. Tack cloths do an excellent job removing the final dust layers if air compressors are not available.

Some choose to use wood conditioners before applying lacquer as well. This can help achieve an even stain absorption if you wish to color the wood prior to sealing.

Application Methods for Lacquer Finishing

Lacquer can be applied with brushes, paint sprayers, or even wiping rags depending on thickness desired. Spraying allows the thinnest coats for maximizing clarity along the woodgrain. Spraying does produce higher evaporative emissions from the volatile solvents, so respirators are mandatory.

Because lacquer dries so rapidly, there is often no need to wait more than 5-10 minutes between coating layers. The initial sealing coat soaks into the wood slightly while allowing better flow for subsequent applications. Sand very lightly with 320 grit sandpaper before adding more gloss layers.

The final coats are typically sprayed as “wet coats”, slightly heavier, to allow the lacquer to smooth itself perfectly. Overly heavy films risks cracking or lackluster appearance. Subtle variations in technique and drying time between layers can lead to drastically different finishes. Don’t rush the last steps for furniture bound to be passed down through generations.

Common Sheens and Gloss Levels

The ingredients, drying time, and layering techniques used when applying lacquer dictate the final glossy appearance. Some of the most common options include:

  • Flat/Matte – Produced by flatting agents in the mixture. Provides only subtle enhancement.
  • Satin – Achieved through chemistry adjustment and restricted air exposure. Warm soft glow.
  • Semi-Gloss – Lighter, thinner coats create this stylish sheen.
  • High Gloss – Multiple slow “wet” passes required. Polishing required. Glass-like brilliance.

Experiment with scraps first to discover your preferred levels of reflectivity. Modern water-based lacquers now match oil-based clarity with easier cleanup while skipping the strong solvent fumes.

Caring for Lacquered Finishes Over the Years

Unlike film building finishes like polyurethanes that sit thicker on the wood surface, lacquer truly fuses with the lumber itself for lifelong bonding. The curing process can take 7-14 days before the bonds reach full strength. Avoid heavy contact before the process completes.

Despite being durable, lacquer can still be prone to scratches from sharp objects. Using felt pads under lamps or other accessories helps prevent this. Chemicals like ammonia or acetone can damage lacquer over time as well.

Use mild soap and water mixtures for cleaning, gently wiping with microfiber cloths to avoid swirl marks in glossier finishes. If damage does occur, consult a professional furniture repair service whenever possible. Refinishing lacquer properly takes skill and practice in paint sprayers and solvent handling.

Frequently Asked Questions

Here are answers to some of the most common questions beginners have about working with lacquer:

1. Does lacquer work on all wood species?

Lacquer works well on nearly all woods. Extra porous species like oak may require additional sanding and a wood conditioner first.

2. Can I apply other stains under the lacquer?

Yes. Oil stains work well to introduce colors prior to sealing with thin lacquer layers on top. The lacquer allows the stain’s color to shine through.

3. Is brushing lacquer difficult?

Brush application takes some practice like all hand-painted finishes. Thin the lacquer slightly with lacquer thinner to improve flow and drying. Sand lightly between coats with fine (320+) grit.

4. Is lacquer finish durable?

Fully cured lacquer has good durability suitable for heavy use furniture. While resistant to general wear, thick bodied finishes like polyurethane have even greater scratch protection.

5. How thick should my lacquer coats be?

Excessively thick coats are prone to runny appearances. Target “thin wet” passes after the sealing pass. Overlap strokes by about 50% rather than double coating the same area.

6. Can I get high-gloss without buffing?

Yes! Given enough thin runs and optimal drying conditions, spraying regimes for furniture can achieve 80%+ gloss before any buffing needed. Slow builds reward.

7. Is lacquer safe for children’s items?

Fully cured lacquer does not release any concerning vapors or compounds, qualifying it as child safe once hardening completes. Water-based options are the best choice.

And those are the key questions beginners tend to have regarding wood lacquer use! Please leave a comment if you have any other questions not covered above.

Concluding Thoughts

From renowned cabinetry to museum grade tables, lacquer’s liquid glass transparency has helped woodworkers showcase stunning wooden furniture for thousands of years. Hopefully this beginner’s overview gave you the confidence to start experimenting with lacquer for your next project.

While the spraying process poses hazards and challenges for newcomers, don’t allow that to dissuade you from the luminous outcomes possible. Invest in safety gear, practice on scraps, and focus on the joy of the process rather than initial frustrations. Even woodworking masters had humble beginnings. We all started with simple plans once.

For more inspiration, check out these additional woodworking finishing guides:

Complete Wood Finish Guide

Achieving Mirrored Finishes
Shooting Lacquers Like the Pros