A) Product Name Distribution Transformer Rubberised Cork
B) Raw Material Two types: a) TF-PG (TD-1049) ( Cork + NBR) b) High Distortion TF-WORB (TD-1120)(Cork + Special NBR)
C) Purpose 1) Rubberised Corks / Sheets are an excellent “ gasket “material, produced by mixing composition cork and rubber BINDER (i.e. NBR ) to provide unique properties. 2) Rubberised Corks / Sheets are the best substances for transformer applications such as transformer oil gaskets as sealing/gasket material to prevent oil leakage.
D) Scope It is ideal for Transformers & switchgear and the General electrical industry, making it a perfect material for a wide range of gasket materials where the application involves oil.
E) Characteristics 1) Natural Property allows it to recover to its initial shape ( Thickness ) by up to 90% ( ASTM F36). Rubberised Cork is the only material that can compress without lateral spread. This property relieves stress on the flanges to maintain the seal. 2) Asbestos & Polycyclic Aromatic Hydrocarbons ( PAH ) Free & RoHS Compliant. 3) Compression strength exceeds 70 MPa. ( 10,000 psi ) 4) High Tensile strength , Stress range from Model: TF-WORB (TD-1120), 2.5 to 15 MPa. ( 360 to 2,175 psi ) ( ASTM F152 ) Model: TF-PG (TD-1049), 5.5 to 20 MPa. ( 800 to 2,900 psi ) ( ASTM F152 ) 5) Resistance to Temperature from Model: TF-WORB (TD-1120), temp : -40 ° C to +125 ° C Model: TF-PG (TD-1049), temp: -30 ° C to +125 ° C 6) Suitable for fluid contact like Mineral Oil, Natural Ester Oil, Silicone Oil & acceptable for SF 6 Gas contact. 7) EXCELLENT in Oil & Heat Resistant. 8) Hardness ( IRHD ) : Model: TF-WORB (TD-1120) ,65 ± 10 Shore A ( ASTM D2240 ) Model: TF-PG (TD-1049) , 70 ± 10 Shore A ( ASTM D2240 ) 9) Colour: Light Brownish (TF-PG/TD-1049) / Dark Brownish (High Distortion TF - WORB/TD-1120) 10) Density : 750~900 Kg/m³ ( ASTM F1315 ) 11) Made In Portugal.