Looking to update your old metal kitchen cabinets with a fresh coat of paint? Painting metal cabinets can totally transform the look of your kitchen. But properly preparing the surface is crucial for getting long-lasting results. Follow this step-by-step guide to learn how to stop on old metal kitchen cabinets before painting.
Introduction
Painting metal kitchen cabinets is a budget-friendly way to give your kitchen a facelift without the high cost of installing brand new cabinetry. But for the paint to adhere properly and last, you need to start with a clean metal surface free of grease, dirt, and other contaminants.
Stopping is an essential preparatory step that involves sanding down the existing finish and applying a coating to provide “tooth” for the new paint. Stopping fills in scratches, evens out surface irregularities, and allows the finish paint to grip the metal tightly.
Proper prep work makes all the difference between a paint job that sticks and looks flawless, versus one that peels, chips, or rubs off over time. Follow these steps to learn how to stop on old metal kitchen cabinets the right way.
Clean Cabinets Thoroughly
Before sanding, stopping, or painting, it’s critical to clean your metal cabinets thoroughly to remove grease, dirt, dust, and any waxy residue:
- Remove all shelves, drawers, and hardware (handles, hinges) from cabinets. Number pieces to keep organized.
- Wash cabinet boxes and doors with a degreasing cleaner like TSP substitute. Scrub with a heavy-duty sponge or bristle brush and rinse well.
- Use a lint-free rag dampened with mineral spirits to remove any remaining grease or wax.
- Allow cabinets to fully dry before sanding or applying stop. Any moisture will prevent proper adhesion.
Thorough cleaning erases contaminants that could cause stopping or paint to peel later on. A freshly cleaned metal surface allows products to grip tightly.
Sand Cabinets to Roughen Surface
Once cabinets are clean, the next step is to scuff sand the existing finish to rough it up and help stop and paint adhere properly. Here’s how:
- Use 120-150 grit sandpaper to sand existing finish. Only scuff lightly, not down to bare metal.
- Sand in the direction of the metal grain to avoid deep scratches.
- Sand sides, fronts, backs, tops, and bottoms of cabinet boxes and doors.
- Remove all dust with a vacuum and lint-free cloth after sanding.
- Wipe with mineral spirits again to remove any oily residue.
Sanding provides “tooth” and texture to help the stop coat and new paint stick tightly. Be sure to remove any dust so it doesn’t interfere with adhesion.
Apply Stopping Coat
With cabinets cleaned, sanded, and dust-free, you’re ready to apply a stop coat:
- Purchase a stopping product made for metal surfaces like Rustoleum Professional Stopping Primer.
- Pour into a paint tray and use a mini foam roller to apply a thin coat.
- Work in sections applying a light coverage, not too thick or it may bubble up.
- Allow to fully dry per product directions, typically 24 hours.
- Sand lightly again with 220 grit sandpaper after the stop has dried.
- Remove dust again with a vacuum and clean lint-free cloth.
The stopping product fills in scratches, provides texture, and allows the final paint to adhere much better than painting metal directly. Be sure to let it fully cure before sanding or painting.
Apply Quality Primer
Once your stop coat is fully dried and sanded, take these steps to prime cabinets:
- Use an oil-based or shellac-based metal primer like Rustoleum Professional Primer.
- For brush application, pour primer into a paint tray and use a high-quality natural bristle brush.
- For spraying, thin the primer slightly with mineral spirits per primer directions.
- Apply a smooth, even coat over the full cabinet surface and allow to dry overnight.
- Lightly sand again with 220 grit sandpaper before the final paint.
- Remove all dust with a vacuum and lint-free cloth.
Primer creates another layer to prevent rust and provide maximum adhesion for your finish paint. Proper priming is key to a long-lasting paint job.
Paint Cabinets with Finish Coat
You’re finally ready for the fun part – painting the cabinets! Follow these tips:
- Choose a high-quality cabinet enamel paint like Benjamin Moore’s Advance.
- For brush painting, use a premium natural bristle brush and apply a smooth coat.
- For spraying, thin the paint slightly and spray multiple light coats rather than one thick coat.
- Allow each coat to dry fully before applying the next.
- Apply at least 2-3 finish coats for best coverage and durability.
- Let paint cure fully, about 2 weeks before reinstalling hardware and putting cabinets back into use.
Take your time with the painting process and resist the urge to rush. Allowing proper drying time between coats results in a hard, durable finish that will last for many years on your kitchen cabinets.
Finish with Protective Top Coat (Optional)
For added protection on frequently used cabinets, consider applying a clear top coat after painting:
- Use a water-based polyurethane or acrylic top coat.
- Apply with a good quality foam brush or mini roller.
- Allow to dry fully according to product directions.
- Apply up to 3 coats for best durability, allowing proper drying between coats.
The optional top coat provides an extra barrier against moisture, grease splatters, and daily wear and tear. This helps extend the life of your painted finish.
Tips for Success
Follow these tips for the best results:
- Take your time with each step – don’t rush the process.
- Allow each product to fully dry between steps. Adhere to all drying times.
- Apply products in a dust-free environment.
- Lightly sand between coats for better adhesion.
- Use high quality application tools – brushes, roller covers, spray tips.
- Work in thin coats, avoiding drips, sags, and runs in the paint.
Proper prep and application techniques make all the difference in getting a smooth, long-lasting finish on DIY painted kitchen cabinets.
Frequently Asked Questions
What type of stopping product should I use?
Look for a stopping product designed specifically for metal, such as Rustoleum Professional Stopping Primer. Avoid plastic filler-type products.
Do I need to sand before applying stop coat?
Yes, it’s crucial to scuff up the existing finish with 120-150 grit sandpaper before applying stop to help it adhere properly.
How long does it take for stop coat to dry?
Most metal stop coat products take around 24 hours to fully dry and cure. Follow individual product directions.
Should I sand between primer and final paint coats?
Lightly sanding between coats creates a slight texture for better adherence of the next coat. Use fine 220 grit paper.
How long should I wait before using painted cabinets?
Allow the final paint to cure fully, around 2 weeks, before reinstalling shelves, drawers, and hardware. This prevents sticking and damage to the fresh paint.
Conclusion
Updating worn, dated metal kitchen cabinets is a very rewarding DIY project that can give your whole kitchen a fresh new look. Properly preparing the surface with cleaning, sanding, stopping, and priming is well worth the time and effort. Following the techniques outlined in this article will help ensure your painted finish adheres tightly and lasts beautifully for many years before needing a touch up.
With a little patience and the right materials and tools, you can transform your old metal cabinets into a stunning showpiece kitchen on a budget. Just take it step-by-step and don’t try to rush through the process. Beautiful results are well within your DIY reach.