Rob Allen Tuna Blue bulk speargun rubber is sold in 10 cm increments so you can rig custom speargun bands to the exact length you need. It is produced using DIP processing technology and has a two-layer construction: an amber core made from a purer compound, inside a blue outer jacket that protects against abrasion, UV rays and harsh marine environments.
Key features
- Dual-layer construction with an amber core and blue outer jacket
- Core made from a purer compound
- Outer layer protects against abrasion, UV rays and harsh marine environments
- Produced using DIP processing technology
- Sold per 10 cm to suit custom band lengths
- Available in 14 mm, 16 mm and 20 mm diameters
Specifications
- Product type: bulk speargun rubber
- Construction: dual layer
- Inner core: amber, pure compound
- Outer layer: blue, UV and abrasion resistant
- Manufacturing: DIP processing
- Diameters: 14 mm, 16 mm, 20 mm
- Unit: 10 cm
How to order and care
Each unit is 10 cm, so order 10 units for 1 m. Add the length of the finished band plus the extra needed for wishbones, bridles and attachment, and choose a diameter that suits your gun. Rinse bands in fresh water after use, keep them out of direct sun when not diving and replace them when they show cracks or lose power.
FAQ
How much do I order for one band?
Each unit is 10 cm, so order 10 units per metre of rubber. Contact us if you need help working it out.
Which diameter should I choose?
Use the diameter recommended for your gun; check your gun’s specifications or contact us.
Do I need extra parts?
Making bands usually needs wishbone or bridle components and a tool for inserting beads, which are sold separately.








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