Sika DriTac - Professional Wood Floor Repair Adhesive - White - Repairs Gaps and Hollow Spots - for pros and DIYers - 1 Qt.

So far this works great on my floors.

Original contractor did not level floor before installing engineered bamboo flooring on concrete and after several years separation occurred in several areas. Bought syringes for application and went smoothly! Let stand for 48 hours before foot traffic and sounds and feels like a new floor again! Great product!

This product works as advertised. Two things keep it from a five-star rating: 1) Really sticky using injector...must be continuously cleaned after a few uses regardless of the speed you have in its application and 2) once the container is open, there is very little shelf life for unused product...better use it all within a couple of weeks or the remaining product goes bad. Otherwise the product is the best, if not the only DIY one, to fill hollow spots under engineered wood floors. Solves popping, squeaking and generally just about all issues.

I had soft spots and popping in a, one year old, glue down, engineered, hardwood floor. The product worked, as described. Read directions and go slow. Float the container in warm water for 30 minutes before using to loosen it a little. Pour the material into a 20 oz cup (6-8 oz at a time) makes it easier to draw into the syringe. Vacuum all of the saw dust up after you drill your holes, so that it won't clog the needle. The material is thick so you have to really take your time and go slow when you draw it from the cup into the syringe. You wait for the material to catch up to the syringe as you keep pressure during the draw. The directions said you could walk on it immediately after plugging holes but I thought it felt a little soft, so I let it set up for 24 hours. No squeaks at all ! Be aware, you only get 1 quart of material and the syringe is 2 oz. You can really only fill 12-14 holes with one jar. I had to order another to finish my job but it really works and hard to detect the holes.

We got the kit with everything needed to install the glue and a second bottle to add after we used the first one. We had holes about every 6-10 inches apart. Installed glue until it came out the other side. Didn’t walk on it over night. Floor still made noise. Did it again this next night and let it dry overnight again. Still didn’t work! Floor still cracked and popped. We even did some areas a 3 time. Still didn’t work. This is not worth the time or money.

Stuff worked like a charm. Drilled the holes, made small plugs to pound in holes afterwards. Stuff is thin, but thickens up / drys fast. Was a bit difficult to inject ( I used large 250ml syringes). As long as I went slow and steady with plunger, it went smoothly. Reduced messiness by pulling back on plunger before removing from hole. Ended up with only a drop here and there. Hollow sound gone. I assume it will stay that way when it fully dries.

I had hi hopes that this would work to fill a void under some LVP. I injected 1 syringe full over 2 weeks ago and it still has not dried and wants to come out of the hole so I keep tape there until I can find 1/8" dowel

After my first (and last) DIY engineered glue down hard-wood project, I noticed ca. 5 boards not adhering and having the hollow sound when walking over them. After a quick research I ordered this adhesive. I drilled holes, the diameter of a round tooth pick into the joint section of the hollow and popping boards, and used some run of the mill injection syringes with different tip sizes, which I ordered here from Amazon. Much cheaper than getting the whole kit. The glue is the consistency of body lotion and I had to inject quite a few of the syringes content underneath the boards. Be aware the results are not instant, so after about 10 applications it still sounded hollow and when stepping on the boards, the glue oozed out slightly. After ca. 10-20% of the bottles content I decided to wait until the next day. Low and behold, over night once the glue set, it pulled and glued down the boards. No more popping and the hollow sound is gone. Still have to fill up the small drill holes with either toothpick pieces and/or color matched silicone/putty. Happy with the results and can recommend the product.