Rockseal RS400-Roxul 1000 Mineral fibre Lapinus Fibres Fibers Rubber - Elastomer (Chloroprene, Butyl …) SEALANT >> Pre-formed tape / Gasket Lapinus Fibres BV develops and supplies Rockseal* mineral fibres as an essential component in most type of Gasket formulations. These highly cleaned fibres comply with our Roxul*1000 chemistry and are therefor very safe to work with. Rockseal* mineral fibres are specially engineered for industrial and automotive applications in Non-Asbestos Organic (NAO) gasket materials like compressed sheets. Compressed sheet materials In compressed sheets Rockseal® distinguishes itself by its unique properties: inorganic. heat resistance > 700 ºC (1300ºF) giving a better temperature and steam resistance to the gasket easy dispersion in rubber/solvent mixes due to the surface modification of the fibre, showing an affinity for rubbers and solvents, resulting in both a shorter mixing-time and a very homogeneous mixture reactive surface which cross links with rubbers in the matrix, thus forming a closed fibre matrix network, resulting in improved mechanical strength of the gasket and high creep resistance no ignition loss/no oxidation meaning a low porosity of the gasket resulting in improved durability high fibre loads possible up to 40% improving properties like thermal stability, torque retention, sealability and load bearing capacity. Fibre grades best suitable for compressed sheet applications are RS400-Roxul®1000 Rockseal ® RS400–Roxul ® 1000 is a very short, easy to disperse fibre with extreme low shot content. Rockseal® RS400-Roxul®1000 is especially designed for use in thin rubber layers and coatings. It gives formulators the opportunity to incorporate high amounts of inorganic fibres resulting in improved temperature properties, better dimension stability and a smooth surface. The product has an extreme low shot content to enable very thin rubber layers as used in Multi Layer Steel (MLS) gaskets. Rubber coated metal gaskets Highly cleaned, very short, mineral fibre. Used for industrial and automotive applications in non-asbestos organic (NAO) gasket materials like compressed sheets, very thin rubber layers for multi layer steel (MLS) gaskets and rubber coated metal gaskets. Offers good temperature and steam resistance, easy dispersion in rubber/solvent mixes, reactive surface which cross links with rubbers, improved mechanical strength, high creep resistance, no ignition loss, no oxidation, low porosity, improved durability, high fibre loads possibility, improved thermal stability, torque retention, sealability and load bearing capacity. Provides improved temperature properties, better dimension stability, smooth surface and very low shot content.