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Seam Sealer

Visual representation of average product rating from all associated reviews using stars
6 reviews
Our Sale Price
Sale price: $34.65 each
In Stock - Ships between May 23 - 24

Product Highlights

  • Water tight all purpose seam sealer.
  • Can be used indoors or out.
  • Freeze thaw stable and water proof.

  • Water tight all purpose seam sealer.
  • Can be used indoors or out.
  • Freeze thaw stable and water proof.
Description - The seam sealer that we offer is moisture cured polyurethane sealant that is designed to be used in a variety of applications. Urethane sealants are typically used as a wood flooring adhesive however they works exceptionally well and are the best adhesive to use when installing rubber flooring. Our polyurethane seam sealer maintains permanent elasticity, is freeze thaw stable to a wide temperature range, and is weather resistant . What this means is that while this adhesive is great for use indoors, it is also designed to be able to handle outdoor use. Seam sealer is normally recommended for use by customers who would like to make sure that there is a water tight seal between adjacent rubber rolls or tile products.
Note – Seam sealer should be used sparingly. Only a fine bead is needed for the product to be effective. Overuse between adjacent rolls may cause the sealant to squeeze out of the seam and spill over on top.
Material – Polyurethane
Color – Black
Size – 300 ml (10.1 fl oz) gun grade tubes
Recommended Uses – Seam sealer made from polyurethane can be used both on indoor flooring projects as well as outdoor floors. This adhesive can be used not only on rubber flooring but has also been used to install laminate floors, wood flooring, cork flooring and cork underlayment, rubber sound control underlayment, stairs treads and nosing, transition strips, OSB, etc. This product works well when installing flooring products over a variety of sub floors including concrete, plywood, particle or chip board, cement, gypsum, asphalt, and radiant heated flooring systems. Customer's who typically use this product require a safe and effective water tight rubber floor surface such as dog kennels and any other area where you want to be sure liquids do not seep through the floor seams.

In Stock - Ships between May 23 - 24

  • Polyurethane seam sealer adhesive for use with rubber flooring is easy to use. To ensure good adhesion, it is recommended to clean your floor surface and make sure it is dry before applying the adhesive.
  • For more thorough instructions and how to properly maintain and use our polyurethane seam sealer, please Click Here.

For thorough instructions and how to properly maintain and use our polyurethane seam sealer, please Click Here.

Joint Width (Inches)
Joint Depth (Inches) 1/4 3/8 1/2 5/8 3/4 7/8 1
1/4 25 17 12 10 - - -
3/8 - - - 6 5 4 4
1/2 - - - - 4 3 3

Note: Linear Feet Per Tube*

Don't see what you're looking for? 
How many ft are covered by your seam sealer tubes?
This is one of the most asked questions when it comes to this product. So depending on the width and depth of the joint you are filling depends on how many linear feet it will cover. To see a graph of this, please see the installation tab on the product page.
Does this sealant come in clear? How long does it last? Can it be used in the seams of wood flooring to provide a moisture proof barrier?
Our Seam Sealer comes in Black only, and it will last as long as you keep your flooring installed. Our seam sealer does provide a moisture proof barrier.
Exactly how and when is the sealer applied? Can it be done in such a way so as not to have the mats glued to the floor? How long does it take to set up?
Mark Jacobsen
Our Seam Sealer is applied similarly to caulk. You just place small beads of glue at the seams between flooring pieces. This can be used as an alternative to using standard glue. Our Seam Sealer glue is a polyurethane glue, so depending on the moisture content in the air, depends on how quickly the flooring will cure. The more moisture the faster it will cure, the less the longer it takes. Typically the glue will set in 2-24 hours.
Can you use when installing on a cement floor?
You can use our Seam Sealer glue on a cement floor. This glue is a polyurethane glue that is colored black.
Is this a good substitute for double-sided tape to keep joints between rolls from opening up?
Jeffrey Hildebrand
Our Seam Sealer is a great alternative to double-sided tape to keep your flooring seams from separating. When using this, you will place the glue between the two flooring surfaces. We recommend following the instructions on the tube to install out seam sealer glue properly.
How noticeable is this? I've got a 1/8" gap and would like to make it "disappear." I've got the black with blue specs flooring.
David C Peters
Since our Seam Sealer glue is black, it is not super noticeable at all. Also, since it is used to fill in the gaps, you won't really see any of the glue on top of the floor.
I just bought 4 mats of 4' x 6' from you. It is for an indoor gym I am making in my garage on concrete floor. Do you recommend that I get some glue to lay it down?
Tore Steen
You don't have to glue our mats down when using them as a gym floor. If you want, you can glue them down with one of our polyurethane glues, or you can use our Double Sided Carpet Tape for a less permanent install. If you want to create a more water resistant install, we would recommend using our Seam Sealer glue along the seams of the mats. Depending on the type of mat purchased, you may need to also apply our Rubber Floor Finish and Sealer.
Some of my seams aren't cut perfectly. Can I use this to hide those imperfections?
Kelvin Jackson
Yes, our Seam Sealer glue can be used to hide the imperfections between two rubber rolls.
Can this be used as an adhesive for your rolled rubber flooring? I've got a small area of your rubber rolls that I need to re-adhere to my concrete floor.
Yes, our Seam Sealer glue can be used to glue down our rubber flooring. This glue is the same as our other polyurethane adhesives. The only difference is that it's colored black.
I am going to be installing 3 rolls of 1/2 inch rubber flooring with double-sided carpet tape around the perimeter to keep it in place. I want to add the 1/2 ramp--do I just leave some overlap of the carpet tape on the edges in the width of the ramp? Or should I be gluing the ramp to the side of the rubber roll?
Mark D Erickson
You can either use the double-sided carpet tape to the ramp in place or use our Seam Sealer glue under the ramp to keep it in place. You won't need to glue the ramp to the flooring.
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Average Rating
Visual representation of average product rating from all associated reviews using stars

Visual representation of product rating from review using stars
  Be careful
Verified Purchase
Anonymous from Cantrall IL wrote...
If you are concerned about the visual imperfection of a seam in your rubber flooring, this isn’t your solution as the seam becomes soooo much more apparent. My suggestion there is butt the seam well during installation. It will disappear. I certainly wouldn’t recommend this sealer for flooring with a color fleck unless you don’t care about covering the flecks and seeing the sealer. If your need for a sealer is related to a concern about moisture, this is your product. It’’s basically tar. Use disposable rubber gloves!
Visual representation of product rating from review using stars
  Seams disappear
Verified Purchase
Installed in Home gym
J. Flores from Garden Ridge, TX wrote...
Bought this along with the rubber rolls and it worked exactly as expected. The seams are smooth and the floors in our home gym look amazing.
Visual representation of product rating from review using stars
  More then I expected.
Installed in Dog training building
Ann from Hamilton MT wrote...
Once the product arrived on a pallet the individual rolls were wrapped in plastic and banded to the pallet - no possible damage then if sent in individual rolls. The product is exactly as was described to me on the phone, interesting I thought I would need a thicker mat - turned out the 8mm was sufficient for my dog training building. Thanks for sending the correct and adequate adhesive, caulking and instructions - the floor went down easily. I am just now moving dogs into their new area. I have sent photos to friends - very impressed with flooring. A dog friend in NC has called you about your product!!!
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Standard delivery in 3 business days or less.

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map of shipping transit times
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