6 Best Empty Paint Tubes For Storing Handmade Watercolors

Transitioning from a knitter who exclusively uses store-bought supplies to one who curates a custom palette of handmade watercolors requires precise tools. Just as selecting the perfect wool-silk blend changes the drape of a shawl, choosing the right tube for your pigments determines their longevity and ease of use. These small containers are the project bags of the painting world, keeping your essential supplies organized and ready for the next creative session. Quality storage prevents drying and wastage, ensuring every drop of pigment reaches the page exactly as intended.

Meeden Empty Aluminum Tubes: Best Overall Choice

Consistency is the hallmark of a reliable tool, much like how a consistent gauge is the foundation of a perfectly fitted sweater. Meeden aluminum tubes offer a balance of durability and flexibility that mimics the behavior of high-end, factory-filled paint tubes. The walls are thick enough to resist accidental punctures in a supply kit yet soft enough to roll easily as the paint level drops.

This choice is ideal for those who prepare large batches of custom colors. The screw caps are well-fitted, providing a secure seal that prevents air from drying out the pigment, much like keeping your delicate merino stash in an airtight container to deter moths.

The threading on these caps remains smooth even after repeated use, preventing the frustration of a jammed closure mid-project. If reliable, long-term storage is the goal, these tubes provide the most consistent experience for the price.

Daniel Smith Empty Tubes: The Professional’s Pick

When you reach for professional-grade fibers like cashmere or mulberry silk, you expect a certain level of performance and resilience. Daniel Smith empty tubes offer a premium feel and structural integrity that professionals rely on for their most precious, archival-quality pigments. The metal composition is exceptionally pliable, making the process of squeezing out consistent amounts of paint feel effortless.

These tubes are engineered to prevent the chemical reactions sometimes seen between inferior metals and light-sensitive pigments. This is comparable to using high-quality wooden needles that develop a smooth patina over time rather than warping or snagging your yarn.

While they carry a higher price point, the peace of mind regarding archival integrity is worth the investment for serious artists. Think of them as the top-shelf circular needles in your collection; they are the tools you turn to when the project demands perfection.

F-Club Aluminum Paint Tubes: Best Budget Option

Beginning a new craft often requires balancing quality with practical spending, similar to choosing a reliable acrylic-wool blend for a first-time sweater project. F-Club tubes provide a functional, no-frills solution that gets the job done without over-engineering. They serve the purpose of keeping watercolors moist and organized at a price point that encourages experimentation with color mixing.

Because these are more affordable, they are perfect for artists who enjoy creating extensive palettes or sharing custom blends with peers. The trade-off is slightly thinner aluminum, which demands a bit more care during handling to avoid unwanted creasing or small tears.

Use these for colors that are used daily rather than archival masterpieces meant for long-term storage. They fulfill the role of a workhorse tool perfectly, letting the focus remain on the creative process rather than the equipment cost.

Art Alternatives Paint Tubes: Most Versatile Sizes

Versatility in your tool kit is vital, much like owning a comprehensive set of interchangeable needles that can tackle everything from lace weight socks to chunky blankets. Art Alternatives offers a range of sizing options that cater to different pigment needs, from concentrated tinting colors to base washes. Having a variety of tube volumes allows for a more organized studio space where the container size matches the frequency of use.

The material quality is balanced, holding up well to the pressure of daily studio use without being overly stiff. The caps seal tightly, keeping the contents fresh through the changing humidity of different seasons.

If you are just starting to build an inventory of handmade watercolors, purchasing a variety pack allows you to test which volumes suit your workflow best. It is a practical way to refine your setup as your collection of pigments expands.

Kinglake 5ml Small Tubes: Best for Sample Sets

Tiny, 5ml tubes are the equivalent of small notions tins for stitch markers; they are perfect for organizing tiny, essential parts of a larger project. These smaller containers are ideal for travelers or those who prefer working with limited, portable palettes. Their compact size minimizes air exposure, which is an inherent advantage when dealing with small amounts of watercolor.

Because of their diminutive scale, they are excellent for creating sample sets or testing new color formulas before committing to larger batches. They fit easily into a pencil case or a small travel bag, making them the ultimate tool for plein air sketching.

Ensure the caps are tightened securely, as the smaller surface area leaves less room for error. When efficiency and portability are the priorities, these miniature tubes are unmatched.

Blick Studio Aluminum Tubes: Best for Bulk Batches

For the artist who works in large, sweeping strokes and constant color production, capacity and reliability are the primary concerns. Blick Studio aluminum tubes are designed for high-volume storage, offering a robust construction that stands up to heavy-duty handling. These are the equivalent of buying yarn by the cone rather than the skein; they are intended for those who have moved past the trial phase and into consistent, productive practice.

The aluminum is sturdy, protecting pigments from light and moisture during long periods of storage. The closure mechanism is reliable, maintaining a airtight seal that keeps large quantities of paint from thickening or hardening in the tube.

If you find yourself constantly refilling smaller tubes, transitioning to this larger format will save significant time and effort. It is a strategic move for any artist scaling up their production.

How to Choose the Right Size of Empty Paint Tube

Selecting the right tube size is like choosing the right needle size for your yarn weight: it must be matched to the material to achieve the desired result. Consider the frequency with which you reach for a specific color; frequently used primary colors deserve larger, 20ml or 40ml tubes, while special-effect pigments can be kept in smaller 5ml or 10ml vessels.

Take into account the moisture content of your watercolors as well. Larger tubes contain more air once you start using the paint, which can lead to drying if not managed properly. Smaller tubes are often better for high-pigment, thick mixtures that require a tight, compact seal.

Ultimately, your storage strategy should mirror your creative output. If you are a producer of custom, large-batch colors, opt for larger volumes to reduce the time spent on packaging.

A Step-by-Step Guide to Filling Your Tubes

Filling an aluminum tube requires patience and precision, not unlike the process of weaving in ends for a clean, professional finish. First, ensure your watercolor paste is at a manageable, smooth consistency. Use a small spatula or a custom funnel to transfer the paint into the open bottom end of the tube, being careful to leave enough room at the base for folding and crimping.

Avoid overfilling, as this makes it impossible to achieve a proper seal and can lead to messy leaks. Once filled, gently squeeze the tube to push the air out towards the open end, just as you might smooth out a flat piece of knitting before blocking.

Work slowly to ensure there are no air bubbles trapped within the paint. A well-filled tube is the prerequisite for a long-lasting, usable supply of color.

Tips for Crimping Tubes for a Leak-Proof Seal

A secure crimp is the difference between a pristine studio and a paint-covered mess, much like a secure bind-off is the difference between a finished garment and a unraveling disaster. Fold the bottom end of the tube over twice, creating a tight crease. Use a pair of flat-nose pliers to press the fold firmly, ensuring the metal layers are locked together.

For an extra layer of security, especially if traveling, use a heavy-duty crimping tool or a firm press to flatten the seal completely. The goal is to eliminate any gaps where paint could migrate outward.

Check the seal occasionally for signs of stress. Like checking for thin spots in a heel turn, proactive maintenance keeps your supplies ready for use and prevents unexpected failures.

Why Aluminum Tubes Are Best for Watercolors

Aluminum is the preferred material for watercolor storage because it offers an effective barrier against light, moisture, and chemical contamination. Unlike plastic, which can eventually become brittle or porous, aluminum remains flexible and retains its shape, allowing the artist to squeeze out every last bit of pigment. It is a non-reactive metal that protects the integrity of your handmade colors, ensuring the lightfastness and brilliance you worked so hard to achieve.

Furthermore, the collapsible nature of the metal prevents air from being sucked back into the tube after use, which is the primary cause of paint hardening. It provides a vacuum-like environment that preserves your work for years.

Choosing aluminum is an investment in the long-term utility of your paints. It is the gold standard for a reason, offering the best protection for your creative efforts.

Investing in quality empty paint tubes is a foundational step in elevating your watercolor practice from casual hobby to a professional-level pursuit. By understanding the material properties and selecting the right size for your specific needs, you ensure your carefully mixed pigments remain as vibrant and usable as the day they were created. Choose your storage with the same care you give your yarn, and your creative process will be all the more rewarding.