Black Silicone Rubber Tube – ID 0.5–60mm × OD 1–68mm Flexible Hose Pipe

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Sale price$2.38 USD
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In stock (500 units), ready to be shipped

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Description

Black Silicone Rubber Tube — Flexible Hose Pipe for Fuel, Air, Coolant & Lab Use

Whether you're routing coolant lines under a hood, building a lab fluid system, or replacing cracked rubber hose on a machine, finding a flexible tube that fits your exact fitting size without leaking is a constant headache. Off-the-shelf tubing rarely comes in the right inner diameter, and cheap PVC cracks under heat. This black silicone rubber tube solves that problem with over 100 ID/OD combinations — from ultra-fine ID 0.5mm (≈3/64") all the way up to ID 60mm (≈2-3/8") — so you can match your fitting precisely.

Each order is a continuous length of flexible silicone rubber hose, available in 1 meter (≈39"), 2 meter (≈79"), 5 meter (≈196" / ≈16.4 ft), 10 meter (≈393" / ≈32.8 ft), 25 meter (≈82 ft), and 50 meter (≈164 ft) cuts. The tube is made from silicone rubber, which stays pliable across a wide temperature range and resists ozone and UV degradation better than standard rubber or PVC. Wall thickness varies by size — calculated as (OD − ID) ÷ 2 — giving you a clear reference for each variant.

Typical applications include automotive coolant and vacuum hose routing, aquarium and hydroponic tubing, peristaltic pump lines, pneumatic air lines, laboratory fluid transfer, and DIY home plumbing projects where a flexible silicone hose is needed in a non-standard size.

ℹ️ Compatibility Note: The tube's inner diameter (ID) should match the outer diameter of your barb or fitting. Select your ID × OD combination from the variant dropdown above, then choose your required length.
⚠️ Size Tip: Wall thickness = (OD − ID) ÷ 2. If you need a specific wall thickness for pressure applications, calculate from the variant dimensions or contact us to confirm before ordering.

✅ Key Features of These Black Silicone Rubber Tubes

  • 📐100+ Size Combinations — ID range from 0.5mm (≈3/64") to 60mm (≈2-3/8"), OD from 1mm to 68mm, covering micro tubing through large-bore hose in a single product listing.
  • 🌡️Wide Temperature Tolerance — Silicone rubber typically remains flexible from approximately -60°C to +200°C (-76°F to +392°F), making it suitable for engine bay coolant lines and high-heat industrial routing.
  • 🔄Flexible & Kink-Resistant — The soft silicone wall bends around tight corners without collapsing, maintaining consistent flow in aquarium tubing, peristaltic pump lines, and curved routing paths.
  • ☀️UV & Ozone Resistant — Outperforms standard rubber and PVC in outdoor environments; resists surface cracking from ozone exposure, extending service life in exterior installations.
  • ✂️Easy to Cut & Install — Cuts cleanly with scissors or a utility knife; slips over barbed fittings without tools for low-pressure connections, or secure with a hose clamp for pressurized lines.
  • 📦Multiple Length Options — Choose 1 m, 2 m, 5 m, 10 m, 25 m, or 50 m to minimize waste; ideal for both short repair jobs and longer flexible silicone hose runs in lab or industrial settings.

📐 Technical Specifications — Black Silicone Rubber Tube

Material Silicone rubber
Color Black
Inner Diameter (ID) Range 0.5 mm (≈3/64") – 60 mm (≈2-3/8")
Outer Diameter (OD) Range 1 mm – 68 mm (≈2-11/16")
Wall Thickness (OD − ID) ÷ 2 — see variant for exact values
Available Lengths 1 m, 2 m, 5 m, 10 m, 25 m, 50 m
Temperature Range (typical) Approx. -60°C to +200°C (-76°F to +392°F)
Flexibility Soft, flexible — kink-resistant under normal bending
UV / Ozone Resistance Good — superior to standard rubber and PVC
Pressure Rating See variant options — varies by wall thickness and ID
Country of Origin China
Fulfillment Ships from US warehouse

❓ Frequently Asked Questions

How do I choose the right inner diameter and length?

Measure the outer diameter of the fitting or barb the tube will slip over — that measurement should match the tube's inner diameter (ID). For length reference: 1 meter ≈ 39.4 inches, 5 meters ≈ 196 inches (≈16.4 ft), 10 meters ≈ 393 inches (≈32.8 ft). Order slightly more than your measured run to allow for routing and connections.

What pressure and temperature range can this silicone tube handle?

Silicone rubber tubing generally handles temperatures from approximately -60°C to +200°C (-76°F to +392°F). Working pressure varies by wall thickness and diameter — thinner-walled, larger-diameter tubes typically have lower pressure ratings. For high-pressure applications, contact us to confirm suitability for your specific variant.

Is this tube safe for outdoor or UV-exposed installations?

Silicone rubber is generally more UV- and ozone-resistant than standard rubber or PVC tubing, making it suitable for outdoor routing in most climates. For prolonged direct sunlight exposure, a protective sleeve or conduit is recommended to further extend service life.

What fluids is this silicone tube compatible with?

This silicone tube is generally compatible with water, air, coolant, mild acids, and many non-petroleum-based fluids. It is not recommended for concentrated solvents, strong oxidizing acids, or petroleum-based fuels without confirming chemical compatibility first. Contact us if you need to verify a specific fluid.

How do I connect this tube to fittings or barbs?

Select a tube whose ID matches the barb or fitting OD. Silicone's natural flexibility allows it to stretch slightly over barbed fittings for a secure grip. For a leak-free seal under pressure, use a hose clamp sized to the tube's OD. No adhesive is typically needed for low-pressure applications.

Can I cut this tube to a custom length?

Yes. Silicone rubber tube cuts cleanly with sharp scissors or a utility knife. A straight, square cut ensures the best seal against fittings. Mark your cut line with tape before cutting for accuracy. The tube does not fray or unravel after cutting.

How do I calculate wall thickness for a specific variant?

Wall thickness = (OD − ID) ÷ 2. For example, ID 5mm × OD 8mm gives a wall thickness of (8 − 5) ÷ 2 = 1.5mm. Each variant shows the exact ID and OD, so you can calculate wall thickness for any size. Contact us if you need confirmation for pressure-critical applications.

🛒 Select your inner diameter × outer diameter and length above, then add to cart — ships from our US warehouse.

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