Online Leak Repair Sealants

At South Coast Products (SOCO), we pride ourselves on exceeding your expectations with our incredible CheckSeal products that have been setting the bar in this industry for years. We have been doing this for more than five decades, so you can trust us to get it right and to deliver a product that will do everything you need and more. Your equipment is valuable, it must work perfectly when you’re counting on it, and our sealants insure that pipes and valves are always in terrific condition, without the slightest sign of a leak. Don’t settle for anything less. Work with a company with 50 years of experience, and you instantly benefit from these well-designed, proven products.

Find an injectable sealant for your online leak sealing application.

Product Categories

CheckSeal™ 11 RTV

Silicone Sealant

Check Seal™ 11 RTV is a one-component silicone sealant that cures to a pliable, low durometer solid. It is formulated for use with water and steam-based services. Other uses include sealing and encapsulating heating elements in appliances, aerospace gasketing, industrial ovens and other bonding/sealing applications where parts must perform at high temperatures.

CheckSeal™ 17 RTV

Silicone Sealant

Check Seal™ 17 RTV is a one-component high temperature silicone sealant that cures to a pliable, low durometer solid. It is formulated for use with water and steam-based services. Other uses include sealing and encapsulating heating elements in appliances, aerospace gaskets, industrial ovens and other bonding/sealing applications where parts must perform at high temperatures.

CheckSeal™ 20 AB

Dielectric Two- Component Sealant

Check Seal™ 20 AB is a two-component, rubber type sealant developed for the electrical utility industry and commonly used for transformer leaks. It is available in both fast and slow cure formulas delivered in a two part, pre-measured kit for easy application. Both parts are mixed then applied with a high-pressure lubricator. Check Seal™ 20 can be used for sealing flange gaskets, valve stems, drain plugs and couplings. It can also be used in conjunction with clamps.

CheckSeal™ 22 AB

Two-Component Epoxy Sealant

Check Seal™ 22 AB is a two component, catalyzed sealant that cures to a rock hard consistency and delivered in a pre-measured kit for easy application. Both parts are mixed then applied with a high-pressure lubricator. It is used in industrial applications, including sealing flange gaskets, valve stems, drain plugs and couplings. It can also be used in conjunction with clamps and pipewrap applications.

CheckSeal™ 22 AB Thin

Two-Component Epoxy Sealant

Check Seal™ 22 AB is a two component, catalyzed sealant that cures to a rock hard consistency and delivered in a pre-measured kit for easy application. Both parts are mixed then applied with a high-pressure lubricator. It is used in industrial applications, including sealing flange gaskets, valve stems, drain plugs and couplings. It can also be used in conjunction with clamps and pipewrap applications.

CheckSeal™ 357P

Non-Curing Sealant

Check Seal™ 357P is a non-curing sealant that contains a blend of non-asbestos fibers in synthetic oils. It works great on valve packing repair and wire wrap fugitive emission repairs, and is specifically designed for high temperature hydrocarbon service up to 750°F. It is pumpable with a high pressure (10,000 psi) lubrication hand gun.

CheckSeal™ 38P

Non Curing Sealant

Check Seal™ 38P is a sealant compound containing TFE-fluorocarbon particles blended into a synthetic binder. It can be either pre-formed manually or pumped into place with a high pressure (10,000 psi) grease gun. 38P is chemically stable and resistant to most chemicals over a wide pH range. It is a highly versatile and durable self molding sealant used for stuffing boxes and for all types of valves, pumps and mechanical equipment.

CheckSeal™ 3B

Semi-Curing Rubber Sealant

Check Seal™ 3B cures to an extremely tough, semi-pliable rubber at high temperatures. It is designed for use with temperatures up to +700˚F, and is effective as a primary and secondary sealant. It has been successfully used as a secondary micro-void sealant after initial sealant failed.

CheckSeal™ 42

Fast Curing Epoxy Putty

Check Seal™ 42 is a hand-mixable, fast curing, epoxy putty that can be ready for use in just one minute. One hour after mixing, Check Seal™ 42 can be drilled, sawed, sanded, filed, tapped, machined or painted. Packaged in a “no mess” 4 oz “tootsie-roll” application, the curing agent is encapsulated in the contrasting resin, eliminating drips and runs and requiring no tools. It provides fast repairs to many surfaces including metals, wood, glass, concrete, ceramics and numerous plastics.

CheckSeal™ 454 P

Teflon Fiber for Valve Stems, Rods and Shafts

Check Seal™ 454 P is a TFE-fluorocarbon fiber of selected particle sizes for maximum bridging. It can be used as a packing material for valves and miscellaneous applications. This 100% TFE-fluorocarbon fiber has low friction and non-adhesive qualities.

CheckSeal™ 45P

Teflon Sealant

Check Seal™ 45P is sealant designed for wet or dry chlorine service. It can be either pre-formed manually or pumped into place with a high pressure (10,000 psi) grease gun. C45P is a highly versatile and durable self molding sealant used for stuffing boxes and for all types of valves, pumps and mechanical equipment.

CheckSeal™ 4AB

Two-Component Rubber Sealant

Check Seal™ 4AB is a two-component sealant that cures to a relatively hard, but flexible solid. The most common usage of Check Seal™ 4 is in repairing HF acid, Acetic acid and Sulfuric acid leaks to temperatures as high as 550˚F. It can be used with acids, alkalis, hydrocarbons, ammonia and BFW.

CheckSeal™ 55 R

Rubber Sealant

Check Seal™ 55 R is an elastomeric, nitrile rubber type sealant that cures hard and works great on hot condensate or boiler feedwater leaks. It can be injected by a high-pressure sealant/lubricator gun.

CheckSeal™ 6B

Non-Curing Sealant

Check Seal™ 6B is a valve sealant designed for use in high temperatures up to 800˚F. It is also available in high purity grade for nuclear and turbine applications.

CheckSeal™ 8AB

Two-Component Elastometric Plastic Sealing

Check Seal™ 8AB is a two-component sealant that cures to an elastomeric plastic consistency for extreme shock resistance. It is recommended for cyclical or shock applications.

CheckSeal™ 9B

Thermosetting Sealant

Check Seal™ 9B is a sealant with heavy fibers that cure upon the application of heat to form a very hard set solid sealant which blocks leak paths. Check Seal™ 9B is a thermosetting resin reinforced with a fibrous bulk material and works great with boilerfeed water leaks.

CheckSeal™ 9F

Thermosetting Sealant

Check Seal™ 9F is a sealant with heavy fibers that cure upon the application of heat to form a very hard set solid sealant which blocks leak paths. Check Seal™ 9F is a thermosetting resin more heavily fibered material for improved sealing traits and higher temperature performance up to 1500°F, such as high temperature catalyst flue gas leaks.

CheckSeal™ 9R

Liquid Thermosetting Resin

Check Seal™ 9R is a viscous, liquid thermosetting resin that cures upon the application of heat to form a very hard-set solid sealant, blocking leak paths. As it begins to cure, it forms a chemically resistant, insoluble solid that is effective in thread and gasket applications to 700˚F and with added fibers can be used in applications to 1500˚F.

CheckSeal™ HTS

Non-Curing Sealant

Check Seal™ HTS is a heavily fibrous sealant designed for use at temperatures up to 700˚F. HTS works great for a wide variety of leaks with its fibrous characteristics, such as leaking valve seats, this sealing is accomplished without affecting valve operation. Other uses include steam valve packings, steam union leaks, steam wire wraps and steam valve bonnets.

CheckSeal™ RPG

Injectable High Temperature Valve Sealant

Check Seal™ RPG is a black, fibrous, graphite based sealant. It is a non-curing, valve sealant that is durable and designed for extreme temperatures and pressures. It is specifically designed for high temperature service on valves, flanges, and enclosures.

A Wide Variety of Essential Leak Sealant Products

One of the main benefits of coming to us for your leak sealants and pipe reinforcement products is that we have such a wide variety of options. Your use case is not the same as someone else’s, and you can’t settle for cookie-cutter products that just do a standard job in every application. You need unique products tailor-made for the workplace. With this high level of American ingenuity, we have created an extensive line of products, and we would be very happy to help you find the options that are right for you. Just a few of the potential options include:

  • CheckSeal™ 11 RTV: Silicone Sealant
  • CheckSeal™ 20 AB: Dielectric Two-Component Sealant
  • CheckSeal™ 22 AB Thin: Two-Component Epoxy Sealant
  • CheckSeal™ 454 P: Teflon Fiber for Valve Stems, Rods, and Shafts
  • CheckSeal™ RPG: Injectable High-Temperature Valve Sealant

As you can see, we have taken our customers’ needs into account and developed many products to directly address those needs. You’re not going to find another company that is so dedicated to its customers’ success.

We also understand that these products are needed in a variety of locations and that timely delivery is very important to you. It is true that we develop and make our products right here in Texas, at our state-of-the-art factory. At the same time, though, we have a worldwide distribution network stretching from the U.S. to Australia to Japan to Europe. We can meet your needs, we can make deliveries where you need them and we can work closely with you to make sure that everything goes smoothly.

You don’t spend 50 years in this business without learning that your focus isn’t just on composite pipe repair products: It’s on the customers. We are a friendly, knowledgeable, and approachable team. We know this field inside and out, and we’re happy to answer your questions or offer advice. Our entire focus is on making sure you get the results you want. We fully stand behind all of our products and our team.

How to Contact Us

If you have any questions or if you’re looking for a ball valve lubricant supplier and you’re ready to put in an order, just give us a call today at (713) 225-0048 (local) or (800) 535-5823 (toll-free). We hope to hear from you soon.