Counter Seal
If you were to ask the average person in the countertop industry to undermount a stainless steel sink in a high pressure laminate,  tile countertop they would answer,

“It can’t be done.”

This response has been repeated thousands of times over the years.

Currently throughout North America, consumers are asking their plumbers, countertop suppliers and kitchen and bath dealers daily if they can undermount their stainless steel sinks in laminate or tile countertops.  The answer remains the same,

“It can’t be done.”

We at Counter-Seal Corp. answer the question differently,

“Yes it can be done”

Frequently Asked Questions

Q: Why was the Counter-Seal® system invented?


A:      To fill the consumer and industry need to undermount stainless steel sinks in high pressure laminate or tile countertops.


Q: What is the Counter-Seal® system?


A:      The Counter-Seal® system is a functional, decorative seal system that protects substrate materials from liquids, enabling stainless steel sinks to be undermounted in common countertops.


Q: Who is Counter-Seal Corp.?


A:      Counter-Seal Corp. is the patent owner and manufacturer of the Counter-Seal® product and sink undermounting system.


Q: Why does Counter-Seal Corp. feature stainless steel sinks?


A:      Years ago, consumers were attracted to, and in many cases chose, colored kitchen sinks of various compositions.  Over time, numerous users of these sinks became dissatisfied and frustrated with the product as it did not lend itself to easy cleanup and was susceptible to irreparable damage.  Consequently, stainless steel is the preferred material for lifetime use.


Q:     Why are consumers asking for undermount sinks?


A:      For many reasons.  Firstly, they have now been exposed to the concept by seeing sinks undermounted in advertisements, showrooms, commercial installations, or through friends, neighbors, etc.  Secondly, and probably more importantly, many people are tired of trying to clean underneath the flange of traditional drop-in sinks.  As they become aware of the hygienic differences and the ease of cleaning, most people would prefer to have their sink installed under the countertop surface.

Q:     What are Counter-Seal® rings made of?


A:      Counter-Seal® rings are made from solid surface materials.


Q:     Why Solid Surfaces?


A:      Solid surface materials are impervious to water, durable, machine able, and can be also used for decorative countertop edging.

Q:     Why do they need the Counter-Seal® system – why not use granite or solid surface countertops?


A:      Laminate and tile are reasonably priced and readily available in a wide range of colors.  Without the Counter-Seal® system you could not have an undermount sink at an affordable price.


Q: How affordable is the Counter-Seal® system?


A:      Laminate or tile countertops with the Counter-Seal® undermount system are much more affordable than granite or solid surface countertops.


Q: How does the Counter-Seal® system and sinks compare in cost to regular drop‑in sinks and/or to the undermounting of sinks in solid surface?


A:      When you identify the costs currently being charged to cut the hole and mount a regular drop-in sink – and in the case of granite and solid surface, the costs charged for preparing the cut‑out and undermounting the sink – the costs are similar to the cost of the Counter-Seal® system.


Q: What keeps the sink from falling off or coming loose?


A:      We have an engineered system utilizing threaded connectors that are inserted into the underside of the substrate and a patented bolt and clamp system that seats the sink to the gasket on underside of the Counter-Seal® ring.  In addition, a generous amount of sanitary silicone (mildew resistant) is also applied to the topside of the sink flange.


Q: What keeps the countertop substrate dry?


A:      The sink area is sealed using the coordinated Counter-Seal ring, which is inserted into the countertop substrate using the Counter-Seal Corp. supplied two-part, epoxy adhesive.  The epoxy adhesive is applied between the Counter‑Seal® ring and the substrate, as well as the topside of the ring and the underside of the laminate.  The Counter-Seal® ring and epoxy adhesive are impervious to water.


Q: Does the Counter-Seal® system work with all sinks currently being manufactured?


A:      No.  Please refer to Counter-Seal Corp.’s product line for a suitable sink style.


Q: Can Counter-Seal® rings be retrofitted in existing countertops?


A:      No.  Counter-Seal® rings need to be inserted in new countertops before they are installed.


Q:     Does the Counter-Seal® system work with post-form/coved countertops?


A:      Yes.  Counter-Seal® rings can be inserted by Counter-Seal® Certified Fabricators after the countertop blank has been manufactured.  Counter-Seal Corp. offers two undermount sink models (CS11‑H1 The CS12R‑H1 and the CS12L-H1) that are ideal for this application.

Q:     Do countertop Fabricators have to be Counter-Seal certified?


A:      Yes and no.

Yes, for access to Counter-Seal Corp.’s complete product line.

No, if using Counter-Seal Corp.’s line of do-it-yourself products.


Q: How does the Counter-Seal system work with tile?


A:      Counter-Seal® rings are available in custom heights up to 1½”.  The Counter-Seal® ring is inserted flush to the bottom side of the countertop substrate, protruding higher than the top surface.  The tile then abuts to the Counter-Seal® ring.


Q: Where are Counter-Seal products available?


A:      Throughout North America.  Counter-Seal® products are purchased by kitchen and bath dealers, countertop fabricators and skilled, do-it-yourself consumers.


Q: When was the Counter-Seal® system invented?


A:      In 1994.  First patents were issued in 1996.


Q: When were Counter-Seal® products made available to the countertop industry?


A:      Manufacturing and limited distribution commenced in the fall of 1998.  Today, the product line has matured and is now readily accessible through Counter-Seal Corp. and its affiliates anywhere in North America.

Counter-Seal® is a registered trademark of Counter-Seal Corp.