TUFNOL Rolled Laminated Paper Tubes
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Data Sheet TUFNOL Rolled Laminated Paper Tubes Phenolic Paper laminate Paper/phenolic resin rolled laminated plastic tubes (SRBP - Synthetic Resin Bonded Paper) The TUFNOL range of rolled laminated paper tubes have been developed to complement the range of moulded tubes. RL tubes have good mechanical strength, low water absorption and are resistant to weathering and to chemical attack by mild acids and alkalis. They are used where electrical insulation is required and in many instances where the requirement is simply for a low cost, strong and rigid non-metallic tube. Three grades are available: • Grade RL P/1 - A low cost commercial quality grade, suitable for low voltage electrical applications and some mechanical uses. • Grade RL P/2 - A good electrical insulator with good dielectric properties. Made to BS EN 61212 Type PF CP 23. Grade RL P/3 - Superior mechanical properties to Grade RL P/1, particularly with regard to its higher bursting strength. Machines well. What are TUFNOL RL paper tubes used for? In general, Grade RL P/2 is used primarily for electrical insulation components such as bobbins, coil formers, insulating spacers and sleeving. The other grades are used for low voltage insulation and for low cost mechanical applications, such as handles on welding guns, structural components and containers for pyrotechnics, and similar items. TYPES AVAILABLE Grade RL P/1 - natural colour Grade RL P/2 - natural colour — TUFNOL www.tufnol.com

Data Sheet —TUFNOL Grade RL P/3 - natural colour Yes ’Minimum order quantities may apply.

Data Sheet SPECIFICATIONS for TUFNOL Rolled Paper Tubes BRITISH STANDARDS Current Standards Recent Standards (now obsolete) Grade RL P/1 tube Grade RL P/2 tube BS EN 61212-3-1 Type PF CP 23 & 24 BS 6128 Part 8 Type PF CP 81 & 82

Data Sheet PHYSICAL PROPERTIES TUFNOL RL Paper Tubes Grade RL P/1 Grade RL P/2Grade RL P/3 TYPICAL TYPICAL TYPICAL UNITS RESULT RESULT RESULT Axial compressive strength Cohesion between layers Water absorption Insulation resistance after immersion water Loss tangent at 1 MHz Permittivity at 1MHz Axial electric strength in oil at 90°C Electric strength normal to axis in oil - 1.6mm wall - 3.0mm wall Relative density Maximum working temperature* - continuous - intermittent Thermal classification Test methods as BS EN 61212-2, where applicable.