Seal Bond Pedestal Adhesives have been used for many years due to their ability to provide the strength necessary to replace more expensive mechanical fasteners. The actual strength values will depend on the type and size of Access Flooring Pedestal that is used. Please refer to the guidelines supplied by a Structural Engineer or the Access Flooring Manufacturer for expected strength with Seal Bond Pedestal Adhesives.
Seal Bond Pedestal Adhesive provides a high performance, high strength, cost-effective means of installing Access Flooring Pedestals. Seal Bond has supplied the Raised Access Flooring industry with consistently high-quality products and performance for over 15 years.
Seal Bond 95 is available in 1 and 2 gallon pails as well as 10.3 ounce and 28 ounce cartridges. Seal Bond 220 is available in 1 gallon pails.
Seal Bond Adhesives can be ordered directly by contacting Seal Bond at 1.800.252.4144 or through your Raised Access Flooring manufacturer.
Seal Bond 95 is available in 1 and 2 gallon pails as well as 10.3 ounce and 28 ounce cartridges.
Seal Bond 220 is available in 1 gallon pails.
Seal Bond adhesives may have a practical shelf life that greatly exceeds one year depending on how they have been stored. However, due to various storage conditions that may occur recommended shelf life is 10 months. Of course, it is completely at the option of the user to evaluate and use material that has exceeded the recommended shelf life.
Both Seal Bond 95 and Seal Bond 220 are very safe to use. Neither contains solvents, thus are very low or contain virtually no VOC’s. While new Safety Data Sheets require specific industry-wide “warning statements” based on the ingredients, users that follow common precautions such as protection of skin and eyes will enjoy easy and safe use of these products.
Seal Bond 95 and Seal Bond 220 are both pedestal adhesives but they are comprised of two completely different chemistries. SB-95 contains virtually no water. In fact, SB-95 cures/crosslinks when it is exposed to atmospheric moisture (from the air or concrete) therefore it thrives in a humid environment. Seal Bond™ 220 contains moisture and cures when all moisture evaporates from the adhesive. Therefore, Seal Bond 220 typically takes longer to cure when exposed to high humidity. While both Seal Bond 95 and 220 typically exceed an Overturning Moment Value of 1000 inch lbs. even with the lightest duty pedestals, Seal Bond 95 will usually provide a greater strength (5-50%) for pedestals selected for higher strength.
For a detailed answer, see our blog post here on this topic.
Most concrete sealers when properly installed and cured will be completely chemically compatible with Seal Bond 95 and Seal Bond 220 Adhesives. The real question is how will the system (which is comprised of the actual concrete floor, sealer, adhesive and specific pedestal) perform relative to the engineering specification of a particular project. If sufficient force is applied (Overturning Moment Test) will the adhesive be stronger than the coating to the concrete and pull the sealer off the floor? Since there are literally hundreds of sealers on the market the only answer is to test the actual components for each job (yes, concrete varies). In many cases, adhesion of the Seal Bond Pedestal Adhesive can be improved by scuffing the floor sealer. This activity will modify the surface of the sealer and promote anchoring of the adhesive.
Common concrete sealers used in Access Flooring can be divided into two categories. The first category is topical sealers, which form a continuous membrane on top of the concrete. An example of a topical sealer is a two-part epoxy coating, such as our MA-200 High Build Epoxy Color Coat. The second category is penetrating sealers that penetrate the pores of concrete the concrete substrate rather than forming a membrane on the concrete surface. When Seal Bond Adhesive is applied over a penetrating sealer it can bond to the surface of the concrete directly (preferred) rather than to the membrane which is present with a topical sealer. Silicone concrete sealers should always be tested, prior to installation.
When using Seal Bond 95 or Seal Bond 220 we always recommend performing a field test to determine the final performance of the access flooring system.
To improve adhesion performance make certain that all surfaces are clean and free of dirt, grease, oil, frost, curing compounds and other contaminants. Certain concrete sealers may leave a very smooth difficult to bond to profile. Abrasion of these surfaces may improve adhesion results.
Application of the adhesive to the pedestal is determined by the preference of the professional installer. Many installers prefer to “dip” the pedestal base directly into the adhesive pail before placing the pedestal.
The amount of adhesive applied to the bottom of the pedestal can vary by pedestal size and professional installer preference. Seal Bond recommends that for optimal performance the pedestal bottom is completely covered by the adhesive which is typically indicated by adhesive exuding from all four sides of the installed pedestal.
The basic rule is 10-14 days for Seal Bond 95 and 30 or more days for Seal Bond 220. Both are dependent on the specific installation. Seal Bond 95 needs moisture in order to complete its curing process so it will cure faster when moisture is readily available. On the contrary, Seal Bond 220 needs to allow for moisture to evaporate in order to cure. When the Seal Bond 220 adhesive is between the steel pedestal and a sealed concrete floor the evaporation may take an extended period of time.
Seal Bond also sells alternative pedestal adhesives, sealants for underfloor air plenums as well as numerous concrete sealers. Please refer to our website www.seal-bond.com in the Access Flooring area for detailed information about these additional products.
CISCA (Ceilings & Interior Systems Construction Association) – Recommended Test Procedures for Access Floors Section 6 – Pedestal Overturning Moment Test.
Will Seal Bond 95 adhere to other access flooring materials such as plate steel, aluminum, and wood?
Yes. Seal Bond 95 adheres to many common construction materials. However, since surfaces vary in most situations you will want to test for adequate adhesion.
Seal Bond 220 should not be installed below 50° F. and will also cure more slowly at lower temperatures. However, it should be conditioned to a targeted room temperature of 72° before use. Since atmospheric moisture is typically lower at reduced temperatures the rate of cure will slow down.
Seal Bond 95 can be stored as low as 30° F.
If pedestals bonded with Seal Bond are submerged in water from a rain/snow storm will the adhesive bond fail?
If pedestals bonded with either Seal Bond formula are exposed to water for a couple of hours after they are fully cured there would not typically be any reason for concern with their ongoing performance. If exposure exceeds a couple of hours, a determination would need to be made on a case by case basis if the performance of the adhesive has been compromised. This might include performing sample Overturning Moments Tests with the pedestals in question.
Since chemical resistance includes an extremely long list of potential chemicals, please contact a Seal Bond representative to discuss specific chemicals.
This can be accomplished by heating the pedestal with a torch.