Primeline

Exclusively made for C4 by Primeline Industries, this new latex tubing features a fluorescent orange colour and it is available in 3 different dimensions.

Since 1982 Primeline Industries has produced the highest quality latex tubing for the spearfishing industry. Primeline has developed a unique latex tubing with unique properties that improve the performance of any spearguns and this quality is recognised unanimously around the world.


Description

Primeline

Exclusively made for C4 by Primeline Industries, this new latex tubing features a fluorescent orange colour and it is available in 3 different dimensions.

Since 1982 Primeline Industries has produced the highest quality latex tubing for the spearfishing industry. Primeline has developed a unique latex tubing with unique properties that improve the performance of any spearguns and this quality is recognised unanimously around the world.

The latex raw material is a milky substance extracted from plants principally the Hevea Brasiliensis. Unlike other producers Primeline doesn’t dry the substance prior to working it thereby not breaking the polymer chain. The outcome is a more elastic rubber with higher resistance to tear.

Primeline’s unique physical properties are owed by the production process known as continuous dip which creates pure latex rubber in layer after layer. This long and laborious process creates a superior rubber. It produces a virtually protein free latex with more anti- oxidants than any other latex which it owes it’s long aging properties to.

The 16mm speargun rubber developed for C4’s new STANDARD rubber is dipped 125 times whereas the Small ID 16mm is dipped 172 times.

After the initial “soak off” which is a loss of stretch inherent in every rubber (9% for Primeline) the C4 Orangebull Standard looses less than 2% per hour.

These are the diameters in which the tubing is available and they are delivered in rolls of 15mt.

16mm Standard Outside Diameter. 5/8” OD with a 3,2mm / 1/8” ID hole this rubber has the most reliable and renown advantages of pull effort and power. This thickness is an ever popular standard of the speargun industry. Combines all the advantages of power, pull effort to 350% and Primeline’s properties.

14mm Small ID. The 14mm Small ID with 9/16” OD and 1,6mm/ 1,6mm ID hole is increasingly popular for multi-band applications, generating more power than Standard 1/8” hole rubber. Especially well suited for large blue water guns.

16mm Small ID. The 16mm Small ID with a 5/8” OD and 1,6mm ID hole is the most powerful 16mm rubber on the market. It combines the punch and power of 16mm rubber with the extra volume in the rubber to produce more energy without loosing any of it’s high modulus characteristics. Ideal for single and double band applications.

Additional information
Tensile strength:

Ultimate elongation:

750%

Elastic hardness:

35 ± 5

100% form:

Specific Weight:

How to know the exact measure of C4 Primeline slings to be assembled on my speargun?

To make a circular brand

Measure length L on your speargun
L= from the wishbone notch on the shaft to the sling posponing on the head.

14mm dia Slings : (L cm x 2 ) / 3.4
16 mm dia Slings: (L cm x 2 ) / 3.3

Add the cm needed for the binding.

Example: If L is 80 cm and you need to assemble a 16mm dia sling:
80 cm x2 = 160 cm
160 : 3,3 = 48.48 cm
48,48 + 3 cm ( cm for standard binding ) = 51,48 cm

You will therefore have to cut a 16mm dia sling with a length of 51.48 cm.

 

To make a single band

Measure length L on your speargun
L= from the wishbone notch on the shaft to the sling positioning on the head.
E14mm dia Slings : (L cm x 2 ) / 3.4
16 mm dia Slings: (L cm x 2 ) / 3.3

Add the cm needed for the binding.

Example: If L is 80 cm and you need to assemble a 16mm dia sling:
80 cm : 3.3 = 24.24 cm
24.24 + 3 cm ( cm for standard binding ) = 27.24 cm

You will therefore have to cut a 16mm dia sling with a length of 27.24 cm.

 

Standard leghts of slings supplied with Gladius speargun

GLADIUS 85
C4 PRIMELINE orange sling 16mm dia. x 52 cm

GLADIUS 95
C4 PRIMELINE orange sling 16mm dia. x 58 cm

GLADIUS 105 double sling
C4 PRIMELINE orange sling 16mm dia. x 64 cm
C4 PRIMELINE orange sling 14mm dia. x 64 cm

GLADIUS 115 double sling

C4 PRIMELINE orange sling 16mm dia. x 70 cm
C4 PRIMELINE orange sling 14mm dia. x 70 cm

C4 s.r.l.
Headquarter:
Via Cesare Battisti 40
20847 Albiate (MB) – Italia
tel. (+39) 0362 1573081
e-mail: infosales@c4carbon.com

Production site:
Via Libero Grassi, 1
23854 Olginate (LC) – Italia

VAT IT02074520137 – C.F. 01671050167
REA MB2541614 – Cap. Soc. 10.000 €

© Copyright 2020 – C4 s.r.l. – C4 is a registered trademark

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