Rubi Joint Applicator For Grout and Mortar

9 Reviews
Rubi Tools
Contractor pricing

Product Details

Product Details

Rubi Joint Applicator For Grout and Mortar


  • High capacity applicator for the application of mortar joints
  • Extra-light structure made of aluminum
  • For fast, clean and simple application
  • Reduces consumption of mortar and dirt after pointing
  • Trigger-adjustable pressure
  • Changeable outlet nozzles adjustable to the width of every joint
  • Also usable for application of silicon in cartridges
  • Fast, clean application
  • Tuck Point Applicator 25.36 fl.oz / (650 cc) capacity

Technical Details

  • Mechanical advantage 12:1
  • Trowel or pour material into tube for dispensing
  • Barrel turns, application around corners
  • Thumb activated instant pressure release
  • Designed for mortar and tile applications
  • Scoop or pour material into tube for dispensing
  • Package includes standard 2 nozzles, plunger and tube
  • For larger grout joints, simply cut the nozzles to the size of the joint you are filling
Questions & Answers
11 questions

Do you have replacement rubber for the plunger?

Click here for the Rubi screw, piston, and nozzles kit. The rubber is included with the kit.

Will this product work for a non shrink grout our do you have another applicator for this?

The Rubi Joint Applicator will work with non shrink grout.

Will the Rubi Joint Applicator work with Epoxy grout?

Yes, the Rubi Joint Applicator will work with epoxy grout. Make sure to clean it properly immediately after use. Failure to clean properly will make the Rubi Joint Applicator unusable.

The Rubi Joint Applicator kit contains a soft yellow seal installed on the plunger and a loose white hard plastic one in the packaging. Please explain the uses of each. Thanks.

The soft yellow seal is for use with grout. The white piece is for a joint sealant sausage like the one pictured below.

You must remove the yellow seal and attach the white piece.

Will a tube of caulk fit inside the tube?

Yes, you can use standard caulk tube with this product.

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Ratings & Reviews

9 reviews

  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews
7/10/2017 9:51 pm

Great tool for the right application

by countryboy12136

I bought the Rubi applicator to apply grout between 18" ceramic floor tile. The applicator works very well but I soon realized that I wasn't saving any time or doing a better job than just using a grout float. I am not taking anything away from the applicator. It works great. It is easy to load and once you get the hang of the timing of squeezing the trigger and the speed at which to move that applicator tip, it performs very well. If I were putting new mortar between bricks or stones I can see where the applicator would make life WAY easier for an amateur like myself. After using 3 full tubes of grout, I switched back to using a float to apply the grout for my tile job. Bottom line: Contractor's Direct shipped the applicator immediately. I received it in 2 days in perfect condition. The directions that come with it are not very thorough but if you apply some logic you can figure out how it works pretty easily. It is well made, light, and easy to use. I would recommend it per what I wrote above. If I use it to point up some mortar between bricks or stones, I'll update this review. The only reason I gave it a 4 and not a 5 star rating is because, for me, it was not a time or work saver...nor was I able to apply the grout any better (as I mentioned above).

5/16/2018 5:03 pm

What I needed for travertine tile.

by JRS

For my application of grout to travertine tile this tool works great. I did not want grout in all the pockets of the tile, and this tool allowed me to control the grout into the 1/8 inch joints very well, and not have grout anywhere but the grout joint. It's not a fast process, so I could not mix up much grout at a time or it would start hardening on me before I had used it all up. That means more short cycles of application, clean, next application.

6/17/2021 6:45 pm

Professional-Grade 65990 Rubi Joint Applicator

by JW Fine Remodeling Corp.

22-year tile setter: One of the best inventions ever for grout, epoxy, or silicone applications. The 65990 is a high-quality tool that works well and is the easiest to clean!! It's a well-planned, and designed applicator that will reduce labor and will last through many jobs.