Pneumatic Caulking Gun Silicone Sealant Gun Air Rubber Gun Caulk Applicator Tool. Spring-Triggered Design: Precisely controls foam amount to reduce waste and economic consumption. Heavy Duty Metal Construction: Durable build with aluminum alloy handle and iron trigger for long life. Customizable Color: OEM color options available to meet specific branding requirements. Multiple Weight Options: Available in 260g, 280g, and 310g depending on flat bar specifications. High Pushing Force: Delivers 800N force for efficient application of sealants and foam. Versatile Size Range: Available in 9-inch and 10.5-inch lengths to suit different needs. Fast Delivery: Standard delivery time is 15-20 working days after deposit receipt. Low Minimum Order Quantity: MOQ is 2000 pieces for standard orders with flexible shipping options.