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RUBBER & SILICONEStandard parts. Custom solutions.

Black rubber tubing

Black rubber tubing

Black rubber tubing is manufactured using either a natural or man-made elastomer that has been through a finishing process that turns it black and makes it ultra-flexible, resistant to tearing, and durable. Rubber tubing is used to convey liquids and gases. Black rubber tubing refers to a color, not as a type of tubing; this is because there is no single characteristic that black rubber tubing offers that others do not. As with all other tubing types, black rubber tubing in both the inside and outside diameters extends to the required fitting, connection or attachment. In order to produce black rubber tubing, there is the possibility to dye both types of rubber, natural rubber produced from latex, a sap present in certain plants and trees, as well as synthetic rubber manufactured from man-made elements. 

In fact, rubber, neoprene, silicone, latex, and other materials create tubing variations that have various features. Rubber comes in many diverse usages and is widely applied in many areas of everyday life. Black rubber tubing is commonly found in industrial or manufacturing uses in order to help keep the presence of the tubing to a minimum or to hide it. However, black rubber tubing is more heat absorbent when compared to any other colored tubing, plus it is able to ensure insulation or heat retention. Depending on the desired application there are many chemicals that can be included in order to produce features like increased flexibility or electrical conductivity. The dyes that turn the rubber black are easily absorbed by some materials, while there are other tubes that remain uncolored, leading it to a light brown color. As for other tubes, the process involves molding or extrusion, a process that entails forcing raw rubber material through an extrusion die. The other production technique is mandrel curing, in which long thin cylinders, referred to as mandrels or arbors are immersed in rubber.

Rubber Hose Size Catalog

Compare tube bore, outside diameter and available wall thickness. Confirm material compatibility and operating requirements for the selected hose.

Rubber Hose

Compare Inside Diameter and Outside Diameter in mm. The cross-section drawing identifies the bore and outside diameter; confirm the selected tube material and service requirements.

Dimension guide
Tube cross section — Outside Diameter and Inside Diameter
Profile reference. Use the dimension letters and units in the selected table and confirm the part drawing.
Product appearance
Rubber Hose — product view
Illustrative product appearance. Refer to the selected row and part drawing for dimensions.
Part No.Inside DiameterOutside Diameter
RL5-16516
RL7-16716
RL3-19319
RL5-19519
RL7-19719
RL3-25325
RL5-25525
RL7-25725
RL3-32332
RL5-32532
RL7-32732
RL3-38338
RL5-38538
RL7-38738
RL3-45345

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Product specifications

Product form
Hollow elastomer tubing for a fitted line or sleeve
Material options discussed
Silicone, chloroprene rubber (CR) and natural rubber / latex. Choose one formulation for the actual contact and loading conditions.
Application focus
Industrial fluid lines. Size the part against the selected assembly.
Dimensions to confirm
Inside diameter, outside diameter, wall thickness and cut length. Match these to industrial fluid lines.
Color reference
Black. Approve the shade on the selected compound and finished surface.
Contact conditions
Other gases: define concentration, temperature and contact time, then check compatibility with the chosen compound.
Line layout
Check bend radius, unsupported spans and clearance at both connections.

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