Concept Superpro Caulking Gun - 310-400ml

This Concept Superpro Caulking Gun is designed for standard 310-400ml sealant and adhesive tubes.

The reinforced open barrel design allows you to easily slide out the old tube and insert a new one without complex disassembly.

A 25:1 thrust ratio indicates that the gun applies 25 times the force you exert on the trigger to push the sealant out of the tube, resulting in high pressure and smooth application.

Yes, provided the sealant or adhesive you are using is rated for exterior applications. The gun's performance is suitable for outdoor use.

Wipe down the exterior with a damp cloth to remove any excess sealant or adhesive. Avoid submerging the gun in water.

The rotatable barrel allows you to change the angle of the tube relative to the gun's handle, which is very helpful for applying sealant neatly in corners or around curved surfaces.

Yes, the push bar is made of hardened steel with an anti-rust coating, designed for durability and repeated use.

Ensure the push bar is fully engaged with the tube's plunger. Check that the tube is correctly seated in the barrel. Verify the nozzle tip is cut appropriately.

Apply steady, even pressure to the trigger. Ensure the push bar is moving smoothly. Check for blockages in the tube or nozzle.

Confirm you are using a 310-400ml tube. Check for obstructions. The high thrust ratio requires firm pressure, especially with viscous materials.

Release the pressure on the push bar immediately after finishing an application. Some residual pressure release is normal; ensure the anti-drip mechanism (if applicable to the sealant) is engaged or the tube is stored upright.