Low strength gasketing product for flexible flanges. Good resistance to oil and joint movement. LOCTITE® SI 5910 is a low strength, silicone-based gasketing product designed for use on flexible flanges with machined or cast surfaces (metal or plastic). It is suitable for gaps up to 1 mm and offers a cure-through volume (in 24 h) of 2.75 mm. Typical applications include stamped sheet metal covers (timing covers and oil sumps).