What is the best hardwood floor glue or adhesive for the money?

So, you have chosen the type of wood and the color of your floor. You have decided to try to do-it-yourself and have done all the research you could online and off to help you understand the project you are about to undertake. The flooring you chose happens to be one that needs to be glued down. Do you skimp or save, choosing the cheapest glue you can just to "get it done?". No. Hardwood flooring glue or gluedown adhesives should be one of the most important decisions that you make before you begin the installation process. If you choose an adhesive based on the cheapest price, you could be in for problems in the future. And many do-it-yourselfers or weekend warriors are the victims by trying to cut corners and go with a cheaper glue adhesive for their hardwood floors rather than the glue that is recommended by the manufacturer. Don't do it! You may not only have problems later on down the road, you could be unwittingly voiding your floor's warranty.

Types of Adhesive Glue for hardwood floors

There are primarily two adhesive gluedown product types for traditional wood floors:

  1. Urethane Adhesive Gluedown
  2. Water Based Adhesive Gluedown

Both have their benefits and problems and we will discuss each in greater detail.....

Urethane Adhesive- The most popular hardwood adhesive today

Urethane adhesives are the most popular of all the wood adhesives used today. Usually, the hardwood companies will specify a particular brand of glue if they don't offer their own glue product. While not the ultimate solution for people looking for a viable solution to, urethane adhesive is by far more eco-friendly than glues that were used decades ago which are now banned by the EPA. Bostik's, a very popular adhesive company that specializes in glues and sealants should only be used on glue-down floors that are solid as opposed to engineered wood floors. Typically, solid floors are nailed down while engineered floors can be glued down.

Bostik's adhesives are by far the leader when it comes to wood adhesives but there are a lot of competitors in the glue market, including Mapei and Saki to name a couple. If you are going to use a urethane adhesive, proper clean-up on the day of the install is critical. Common clean up materials for this glue is mineral spirits although Bostik also has wipes that can do the job.

Water Based Adhesive

The Plop and Slide Down Method with Water Based Adhesives

Most hardwood installers will tell you that the "plop and slide down method" should not be done when using glue down adhesives but for the do-it-yourselfer or amateur handyman, you will find that when installing a board, sometimes the board may drop down away from the tongue and groove. With urethane based glues, inserting the board into the groove will almost always fail because of the nature of the glue. Water based adhesives are far more forgiving when this happens though.

Another benefit to using water based adhesives is that they respond well to the "banana effect" of some engineered hardwoods. The banana effect is when the wood doesn't appear to be totally secured to the subfloor. With urethane adhesive, there is very little corrective measure that you can do. However, with water based adhesive, you can simply add a weight to the plank or section in question and after it has dried, the effect will be a stronger, more solid gluedown.

How to Install a Glue-Down Engineered Hardwood Floor

Water based adhesives are also easier to clean up; all you need is a damp rag (water) before you start the adhesive set and after the floor is cured, mineral spirits.

What about an adhesive for a floating floor?

Most floating floors out there today don't use adhesives but a locking mechanism to lock each panel or section of wood into place. That said, there are still some hardwood floors that use gluedown adhesives. And most manufacturers who require an glue down for a floating floor have their own adhesives such as Bruce and Karh's. All this said, the glue that the pro's use is Titebond Tongue and Groove Flooring Glue.

The bottom line is that if you are spending thousands of dollars on hardwood floors for your home, don't try to skimp on adhesives. Choose the glue that is recommended by the manufacturer and if there is nothing recommended, then you should ask a professional on which gluedown adhesive would be best for your project. After all, a properly laid floor should last you for decades.

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