Construction Superstructural Neutral Silicone Sealant 9900 Waterproof Glue Mildew-Resistant Non-Cracking For Stone Curtain Wall Woodworking Perimeter Sealing Of Windows Doors Facades multi-purpose Tile Adhesive 750g

Product details ofSpecifications:Model: 9900Type: Neutral Silicone SealantPacking: 590ml sausageCure System: Neutral (RTV)Color Options: Transparent, blackStorage & Shelf Life:Store in a cool, dry place away from direct sunlight. Shelf life: 12 months in unopened packaging.The specific application steps are as follows:1. Surface Cleaning: Thoroughly remove dust, oil, rust, and old sealant from the joint area, ensuring the substrate is completely dry. Alcohol or acetone may be used for wiping if necessary.2. Applying Protective Tape: Apply masking tape along both sides of the joint to prevent excess sealant from contaminating adjacent areas and to ensure a neat, clean edge.3. Sealant Application: Cut the tip of the sealant cartridge, attach the nozzle, and load it into the caulking gun. Extrude the sealant slowly, continuously, and evenly along the joint, ensuring it is completely filled without air bubbles or voids.4. Smoothing and Finishing: After application, use a professional scraper or spatula to gently smooth and compact the sealant along the joint; remove excess material and ensure the sealant adheres tightly to the substrate.5. Removing Tape and Curing: Remove the protective tape immediately after smoothing, before the sealant dries. Silicone sealant typically takes 10–20 minutes to form a skin and over 24 hours to fully cure (achieving optimal bond strength and elasticity).