Dritac worked, this is sticky stuff. I bought the big bottle to finish the large area that was warped loose from concrete by a leaky icemaker years ago. The customer just wanted the floor side not to be so noisy and floating. I told her that this wouldn't take out the ridges from the warping and she was okay with that. DriTac Professional Wood Repair Adhesive is cheaper than pulling it up and starting new. I originally bought the starter kit and one extra 32 oz bottle to do an area that was 8ft by 2.5ft. I didn't have near enough, so I bought this big bottle to go back and finish. When I drilled through some spots seemed to have almost 3/8 inch gap to concrete below, so the glue just kept flowing in. I staggered my holes about 15-20 inches apart. I wasn't too prepared for the cleaning of syringe which can be done. I used brake cleaner I had in truck to spray out and clean before it set up in the needle so I could use it again next week. Keep the syringe clean. Any particle that gets in it including partially set up glue will clog the tip, keep a pin on hand. I used an 18 gauge brad nail.

Product Description:

Manufacture By: Dritac
Material: Wood
Model No: FBA_RS-8
Weight: 9 Pounds
Dimension: 11.8 x 3.2 x 7.2 inches
Customer Review: 4.3 out of 5.0
Price Range: Under 100

Features of Dritac Wood Repair Adhesive:

DriTac has developed a repair system to correct the hollow spots and popping conditions for engineered wood flooring installations
DriTac has developed a repair system to amend the empty spots and popping requirements for engineered wood flooring installations
One US Gallon of DriTac Repair Adhesive RS-8

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How to Use - Instruction and Review of Dritac Wood Repair Adhesive

I purchased the little kit first and switched to this gallon quickly once I knew it worked. I used it on my engineered floor, which glued on a concrete surface. Over the years, I had many hollow spots. Some made a creaking noise when I stepped, and some were just annoying because I could feel the air pocket under my feet when I stepped on the spot. It just felt different. If you are reading about Dritac professional adhesive product and this review, you know what I am describing. So here is a summary and some tips:

Most importantly, you should know that Dritac wood adhesive product works, and it works excellent. I am not sure technically how, but it feels like it is a glue that also expands with time to fill the gap. In the end, there is no difference between the spots that I fixed and the original floors that never had a problem.
At first, I used the little kit, knowing that it probably would not be enough to experiment. When I saw that it worked, I bought the gallon version. In my experience, one syringe full (50ml or 1.6 oz.) is enough to fill one spot. Most of my domains were more abundant, so I went in multiple of that to figure out how much I needed. In the end, I ended up using this kit + 1 full gallon
For every 6" x 6" area I had, I drilled one hole. If my area was double, I drilled two holes (1 on each side of the area I wanted to cover). If it was triple, I drilled three holes to inject the glue, etc.
In the instructions for multiple holes, they say to pump from one end until you see the glue come out the other end. In my experience, this never happened. Maybe I under-injected, but I achieved perfect results by sticking to the 6" x 6" area = 1 syringe-full equation
Dritac Professional wood adhesive 1 gallon is super thick. As other users described, I coated inside the syringe with a thin layer of Vaseline. Day and Night difference. I would highly recommend doing that. Occasionally reapply as you feel the resistance increase. I recoated about every ten syringe-fulls.
The manual describes not putting any weight on it and let the glue settle on its own. It sounded counterintuitive, but I followed the direction and left it alone. Sure enough, it worked well. Thinking back, I guess not putting weight is also essential because this is a self-leveling product. Let gravity do the work on this super-dense glue. I have read others put pressure after the glue, and they reported good results too. I left it alone for 24 hours and achieved A+ results.
The stuff is messy. No matter how many videos I watched, how many reviews I read, I could not avoid the mess. Even though I did it two times it was messy both times. Keep wet and dry towels with you all the time as you are working. Gloves help too.
Drill all your holes first, then start working with the glue and the syringe. Dritac wood repair adhesive is related to the previous comments. Once you start using the paste, because it is messy, you are not going to want to switch hands, tools, gloves, etc.

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Bestseller No. 1

Dritac Professional Wood Repair Adhesive 1 Gallon

DriTac has developed a repair system to correct the hollow spots and popping conditions for engineered wood flooring installations
DriTac has developed a repair system to correct the hollow spots and popping conditions for engineered wood flooring installations
One US Gallon of DriTac Repair Adhesive RS-8

Bestseller No. 2

PC Products PC-Woody Wood Repair Epoxy Paste, Two-Part 12 oz in Two Cans, Tan 16333

Two-part epoxy paste to replace missing or rotted wood is resistant to mildew, dry rot, UV light, and fresh and salt water
Can be used in indoor and outdoor applications, with an application temperature range of 35 to 115 degrees F and a service temperature range of -20 to +200 degrees F
High tack helps reduce drips and sags while hardening. PC-Woody part B must be mixed with PC-Woody part A in equal volumes. The PC-Woody part B will not cure by itself and must be removed and mixed properly. It is not recommended to mix PC-Woody in teaspoon size increments or smaller, simply because of the likelihood of an ‘off-ratio’ mix
Provides work time of 30 to 40 minutes (at 70 degrees F) to allow for adjustments
Can be painted, stained, and machined after fully cured

Bestseller No. 3

Azobur Repair Tape Patch Wood Textured Adhesive for Door Floor Table and Chair (Antique Oak)

·Large leather patch size 3.9 inch'x 15'' ft
Use advanced technology, paste strong, do not drop, paste on a few seconds.
The price is cheap, the appearance is luxurious, paste in the break or stain is not easy to be found.You can also cut it into various shapes with scissors easily
100% environmental health
Our kit works on leather and vinyl couches, sofas, chair, car seat, bags, purse , boots, jacket, belts , luggage, boots, auto seats, , gloves, motorcycle seats, recliner, handbag, loveseat, truck seat, ottoman, and furniture

Bestseller No. 4

Creative ingenuity 1 Roll 15 Feet Simulation Wood Grain High-Adhesive Repair Tape for Desk/Chair/Furniture/Floor Beautification Decoration Tape (Gold Camel Oak)

★Size:1 Roll, Length---15ft(4.6m),Width---2.2in(5.7cm),Thickness---0.01in(0.26mm)
★Color:There are 7 kinds of artificial wood grain tapes to choose:Chocolate oak/Brown antique oak/Light wine red peach wood grain/Light gray wood grain/Dark brown oak/Deep maroon peach wood grain/Gold camel oak.
★Material:PE and OPP compound,Eco-Friendly,Safety,Waterproof,Durable,Strong peeling force,Tensile strength,Grease resistance,Aging resistance,Temperature resistant.
★DIY:Real and pretty appearance, can be pasted in the break or stain,not easy to be found.You can DIY your shapes with a scissor easily.
★Multifunction:Length and shape can be cut by yourself.Perfect for covering any size of door/Desk/Chair/Furniture/Floor /Kitchen cabinet/Desser drawer/Craft project/Bookcase and so on.Can be used as enovate the old furniture and use it to stick the wall.

Bestseller No. 5

Professional Grade Cyanoacrylate (CA)"Super Glue" by Glue Masters - 56 Grams - Medium Viscosity Adhesive for Plastic, Wood & DIY Crafts…

★ ONE GLUE TO RULE THEM ALL – Glue Masters offers premium quality industrial strength Cyanoacrylate Resin with the strongest bond on the market for your money. With a fast cure and extended shelf life, you can’t go wrong with us!
★ A TRUE QUICK FIX – Settles in just under 45 seconds, this glue is the epitome of easy. Gently apply a small amount of our Instant Glue, and watch the magic happen. Our well balanced medium (100cps) viscosity offers more control to the user while still giving you a nice even flow to get the job done right without the mess or hassle.
★ A HOBBYIST’S BEST FRIEND – Helping bring your models, puzzles, and more to completion is our goal! Our glue is the model builder’s first pick for a quality clear hold and a flow you can trust with those delicate planes, trains, and boats. Don’t take our word for it, just take a look at our customer reviews and see for yourself!
★ VERSATILITY – From building scale models to repairing shoe sole, fabric, wood, and more, we’re THE glue for general household repairs, carpentry and whatever else you need fixed! It’s truly a must have for anyone’s toolbox. Our 2oz container offers you enough fixing power for any job, large or small.
★ GUARANTEED – Your satisfaction is our number one priority! That’s why we offer an unbeatable 60 DAY GUARANTEE on all of our products! Try us out, and whether you use a little or a lot, if it’s not up to your expectations, just send whatever’s left back our way and we’ll send you back your money! It’s truly that easy.

DriTac Professional Wood Repair Adhesive is expensive. OK yes, it stings a little, but the fact that it works makes it worth every penny. Good luck