ABS Plastic Round Tube 250mm — Hollow Pipe for Model Making & DIY Craft (2mm–8mm OD)

Match the outer diameter (OD) to the opening or slot in your model or assembly. For structural framing in scale models, 3–5mm OD is generally the most versatile range. If you need a tube to slide inside another, choose a diameter roughly 1mm smaller than the inner diameter of the outer tube — for example, a 3mm OD tube will typically fit inside a 4mm OD tube of the same wall thickness. When in doubt, order a 1-pcs sample of two adjacent sizes to test fit before committing to a larger quantity.

Wall thickness varies by diameter. Smaller diameters (2–3mm OD) typically have a wall of approximately 0.5mm, while larger diameters (5–8mm OD) generally range from 0.8mm to 1.2mm. Please see the variant options or contact us to confirm the exact wall thickness for a specific size before ordering for precision-fit applications.

ABS plastic has moderate UV resistance and is generally suitable for short-term outdoor use or sheltered outdoor environments. It does not absorb moisture, so humidity alone is not typically a concern. For prolonged direct sunlight exposure, consider applying a UV-resistant primer or paint to extend the tube's appearance and structural life.

ABS plastic bonds well with ABS-specific plastic cement (solvent welding), cyanoacrylate (super glue), or two-part epoxy. Solvent cement creates the strongest structural bond by chemically fusing the surfaces — ideal for permanent model assemblies. For quick tacking during construction, cyanoacrylate is generally the most convenient option. Avoid contact cements that are not rated for ABS, as adhesion may be inconsistent.

Yes. These tubes follow standard metric outer diameter sizing (2, 3, 4, 5, 6, 8mm), making them compatible with most metric-spec model fittings, connectors, and sleeves. For fluid or pneumatic applications, please verify the inner diameter and wall tolerance against your fitting specifications before ordering, as ID can vary slightly by production batch.

A sharp hobby knife or fine-tooth saw (such as a razor saw or jeweler's saw) produces the cleanest cuts on small-diameter ABS tubes. Score-and-snap works for thinner-walled sizes. After cutting, lightly sand the cut end with 220–400 grit sandpaper to remove burrs and ensure a flush fit. Avoid applying excessive lateral force when cutting, as this can cause the tube to crack rather than shear cleanly.

Yes. ABS accepts most acrylic, lacquer, and enamel paints commonly used in scale modeling. Lightly sanding the surface with 400-grit paper before priming improves adhesion significantly. A thin coat of plastic-compatible primer (such as Tamiya Surface Primer or a rattle-can plastic primer) is recommended before applying color coats. Avoid solvent-heavy paints applied in thick coats, as they may cause surface crazing on ABS.