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Sigalsub Purple Extreme Rubber Bands- Progressive

From: £0.24


Sigasubs Purple Extreme Rubber is a dipped, progressive rubber. Made with a 1.5mm bore, it has a tonne of smooth punch!

Please add bands separately to your basket if there is more than one. Calculations can be found in the description below or please contact us to help.

Sigalsub Purple Extreme Rubber

Sold by the cm! Adjust the quantity to your chosen length.

Rubber Tip Sanding

Would you like us to sand the tips of your rubber?

Band Rigging Service- Closed Circular

Perfect for open muzzle holes such as Rob Allen, Riffe and Cressi. Will want to use with a finned or smooth notched spear.

Band Rigging Service- Removable Bridle

Perfect for closed off muzzle holes such as Pathos and Salvimar. Will want to use with a finned or smooth notched spear.

Band Rigging Service- Metal Wishbone

Perfect for spears with sharp edged notches that wont take dyneema wishbones.

Out of stock

Band Rigging Service- Roller Bands

We'll add a Rob Allen Easy Load Wishbone to make life easier!

Band Rigging Service- Screw in Rubbers

We'll fit your rubber to screw in adapters! You'll need an articulated wishbone with screw in adapters, if you don't already have one, we would recommend this

In stock, yours in 1-4 days

SKU: Sigalsub Purple Extreme Rubber Bands- Progressive Category:

This rubber is sold by the cm, if you require a 65cm band, please add 65 units. We are also able to make up the bands for you should you wish. Simply select one of the options above after reading about them below.

Want us to make your speargun band?

When ordering, please choose one of the pre-made band options using the check boxes provided. Here is a description of each option:

  1. Rob Allen dyneema wishbone. This is a closed loop band, common setup for RA, Riffe and Cressi spearguns. As it is a  dyneema wishbone, it is suitable for finned or bevelled notched spears.
  2. Looped wishbones with removable bridle. These are perfect if you need to undo the bridle to fix it to your speargun. Guns that need this style are brands such as Pathos and Salvimar. These are made with a Dyneema wishbone and therefore suitable for finned or bevelled notched spears.
  3. Metal wishbone – used to replace screw in rubbers for a sharp spear notch. This is a closed loop band and such suited for branded spearguns such as RA, Riffe and Cressi.
  4. Roller bands are designed for your roller gun. If you have a different configuration than Rob Allen, Pathos or Salvimar roller bands, let us know and we’ll make it for you.
  5. Screw in rubbers– we’ll insert screw in adapters and tie them off so you can use them with your euro guns. You will need a separate wishbone, you may have one with your old bands. Or if it is unusable or you don’t have one, we would recommend this.

What length rubber do I need?

If you are not sure what length you need for your speargun please feel free to get in touch. However here are the recommended stretch factors and equations to use.

  • 13mm is recommended for a stretch factor of 320-340% with a maximum stretch factor of 340%
  • 14.5mm is recommended for a stretch factor of 310-340% with a maximum stretch factor of 360%
  • 16mm is recommended for a stretch factor of 300-330% with a maximum stretch factor of 380%
  • 17.5mm is recommended for a stretch factor of 280-310% with a maximum stretch factor of 400%
  • 19mm is recommended for a stretch factor of 270-300% with a maximum stretch factor of 400%

Now for the equations:

For Circular Bands

  1. Measure from the furthest notch/shark fin to the start of the muzzle hole
  2. Multiply by 2
  3. Divide by your stretch factor. If you would like 270%, divide by 2.7. If you would like 340%, divide by 3.4
  4. This number will equal number of cm needed.

For Roller Bands

We’ll make your bands to fit your specific roller, the most common set ups would be; Rob Allen, Pathos or Salvimar style bands. If you have a different configuration to these above, please let us know and we’ll make it for you!

  1. Measure from the furthest notch round the muzzle and back down the length of the gun to where the rubber will sit securely.
  2. Multiply by 2
  3. Divide by your stretch factor. If you would like 270%, divide by 2.7. If you would like 340%, divide by 3.4
  4. This number will equal number of cm needed.

For Screw in Rubbers

Measure from the furthest notch to where the rubbers screw in

  1. Measure from the furthest notch to where the rubbers screw in.
  2. Multiply by 2
  3. Divide by your stretch factor. If you would like 270%, divide by 2.7. If you would like 340%, divide by 3.4
  4. This number will equal number of cm needed.

Remember that not all gun rubbers are made equally and the same is true for spears. Some spears work better when powered by a specific rubber and visa versa.

Also, be sure not to overpower your spear as this will lead to inaccuracies in your shots. Of course if you are unsure then please get in touch.

If you need any assistance, please email enquiries@spearfishing.co.uk.

Brand

Rubber Manufacturing Style

Rubber reactivity

Internal Diameter

Thickness

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Sigalsub Purple Extreme Rubber

Thickness

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Band Rigging Service- Roller Bands

Band Style

Rob Allen Roller Band, Salvimar Roller Band, Pathos Roller Band

Band Rigging Service- Screw in Rubbers

Thread material

Inox, Plastic screw with Inox tip

Band Style

Screw in Rubber (4 Screw Threads), Circular (2 screw threads)