Solvay Specialty Polymers Cogegum® GFR/350 Polyolefin, Unspecified  (Unverified Data**)

Cogegum® XLPO-HFFR - Crosslinkable Halogen Free Fire Retardant compound Silane grafted compound moisture curable by addition of a catalyst masterbatch (Sioplas® method). It consists of a polyolefin base containing a fire retardant system that contributes to give the cable self-extinguish properties without halogenidric acids evolution, toxic and corrosive gases and dark smoke emission. This material complies with RoHS requirements. Standard complying - EN 50363-5 EI5, EI8; EN 50363-0 G10;EN 50363-6 EM10; VDE 0207/23 HJ1, HM1; VDE 0250/503 HI3; VDE 0266 HXI1, HXM1; IEC 60092/351 HF 90; Cenelec HD 624.6Additional Information: Tests reported are performed on pressed or extruded specimens, added with 5% of Catalyst CT/2-LR and crosslinked in hot water at 95°C for 6 hours Coloring - EVA or PE based color masterbatches added at 1.2-1.5% by weight; in order to prevent precrosslinking during processing, predrying of colour masterbatch is suggested (4-6 hours at 50-60°C) Storage - The product must be stored under the following conditions: -- closed and undamaged bags -- ambient temperature not exceeding 30°C -- avoid direct exposure to sunlight and weathering - Product alterations could occur due to extended period of storage - Shelf life: 9 months - Solvay Specialty Polymers accepts no liability of any kind in case the above mentioned conditions are not fulfilled Packaging - 25 kg moisture-resistant bags on 1375 kg pallet - 750 kg carton boxExtrusion Notes: Processing - COGEGUM® GFR/350 must be added with Catalyst CT/2-LR masterbatch to promote curing. Catalyst dosage is 5% by weight and blending must be done just before using (2-3 hours max.), preferably in the extruder hopper. The use of 5% of Catalyst CT/7-LR UV is suggested if high resistance against UV-VIS radiation and long term ageing is required. Catalyst doesn't need any predrying if stored in dry conditions in the original closed bags; in case, predrying can be made at 50-60°C for 4-8 hours - The pregrafted base compound is sensible to moisture; open bags must be used within 4 hours. Pregrafted base cannot be predried Extrusion equipment - standard extruders for thermoplastics equipped with low compression screw (1:1.2-1.4 compression ratio and 25 L/D ratio are suggested), and an adequate barrel thermoregulation - don't use screw thermoregulation - filter net: none - compression tools suggested Curing - by immersion in hot water at 60-70°C - by exposure in ambient, crosslinking time depends on ambient temperature and relative humidity - in all cases curing time depends on insulation thickness; for 0.7-1.2 mm wall thickness 3-6 hours are generally necessary in case of forced curing in hot waterInformation provided by Solvay Specialty Polymers.