GTE MasterBead: Adhesive Dispenser Gun, Makes Gasket Seals With One-hand Operation, Preferred Silicone Applicator by Professional Technicians, Use With RTV, Sealant, Silicone, and All Other Adhesives

My MasterBead arrived today and it was exactly as described in terms of design and function.... Very sturdy product and definitely helps you get every drop out.... I used it this morning on my boat and noticed it leaves a nicer bead than other products I have previously used.

Great idea, but doesn't work well. It worked at first, but then ended up pulling the folded seam apart that seals the tube at the back causing the tube slip out. Ended up wasting a whole tube of sealant. I think the part that squeezes at the front is too thin and creates too much drag on the tube. It should be a longer price with a shallower angle or a roller for less drag. This would cause less pulling on the folded end.

I'm so glad I found this, squeezing silicon tubes with tennis elbow is quite painful. It works great. It holds the silicone tube by the tail. The trigger pushes the ratcheting squeeze head forward along the tube and leaves the tube paper thin. There is almost no waste of material. Pushing the trigger is quite effortless, its easier than the cylindrical tubes.

Nothing against the seller, they shipped fast and sold at a fair price. The tool itself is a great concept, one that is much needed for technicians. The problem is, is that it pinches the tube so tight that the pressure applied (thru trigger) to overcome the "viscosity" of RTV usually rips the bottom of the tube off after a couple of pulls. Wasted tube of RTV and disappointment in what would otherwise be a great tool helping the tech do a better/ professional job. Back to the drawing board....

I absolutely love this tool it gets 100% of rtv out of tube. Works great really helps to make a perfect gasket.

Bought this to lay a nice clean bead on my valve and timing covers. First tube I sliced open while sliding into the keeper. Second tube the roll pulled free, third tube just split in half. Needless to say I had a huge mess on my hands and three wasted tubes of RTV. Not sure if I was doing something wrong, I bought 3 tubes of defective RTV or the product is bad.

Leave no caulk behind. This gun will make sure you get the last drop of caulk, or adhesive, or hell - even TOOTHPASTE out of the tube. That saves time & money on any project. Then factor in how easy it is to dispense one handed and you are really ahead of schedule.

Well made sturdy product, I have only used it once with a nonstandard product but it still performed as needed. I can tell already it will help me a lot when it comes to using RTV silicone products at work and at home. Definitely a good choice if you use silicone products on a regular basis.