Oxidation Resistant Deformation Resistant Customizable Plastic Silicone Sealant Cartridge. 100% HDPE Material: Made from 100% virgin High-Density Polyethylene for superior chemical resistance and structural integrity. Airtight & Leak-Proof: Precision-engineered plunger design creates an absolute barrier against air and moisture to prevent premature curing. Smooth Extrusion: Ultra-smooth inner wall minimizes friction, allowing effortless extrusion of high-viscosity adhesives with standard guns. Custom Branding: Available as blank tubes or with premium printing options including silk-screen, offset, and In-Mold Labeling. High Pressure Resistant: Reinforced thick-wall design withstands high pressure during automated filling and manual gunning without deformation. Versatile Compatibility: Ideal for RTV silicone, acrylic caulks, polyurethane, and heavy-duty construction adhesives like liquid nails. OEM/ODM Services: Full customization options available including samples, designs, and flexible minor customization services. Professional Manufacturer: SANZENG offers large-scale production capacity with advanced automated lines and strict quality control.