Price Quote Online
Or Call 866-777-8001

Link-Seal Modular Seals

Thunderline Modular SealsLink-Seal, Century-Line Sleeves and Cell-Cast Disks work together to create the ultimate pass through for piping. Link Seal modular seals work with a wide range of commercial / industrial piping to pass through walls, floors, ceilings and more. Link Seal is a flexible belt of connected links made of a high quality rubber material to the purpose of completely filling the void between pipes and wall / floor and ceiling openings. Contact Us today by completing our easy online quoting system.

Link Seal Modular Seal applications include: Insulated Pipe Seals, Pool Contractors, Mining, Electrical Isolation, Noise / Sway Dampener, Oil Rigs, Telecom, Waste & Water Treatment, Mechanical Contractors, Marine, Tunneling, Septic Tanks, Precast Concrete, Fire Protection and More!

Link Seal comes in a range of material types, including EPDM for water tight applications. Hardware includes zinc/steel as well as 316 Stainless.

The following chart reflects all the link seal modular seal size combinations. All our link seal products are sold by the link. Use the sizing chart for extra guidance or give us a call.

Carbon Steel & 316 Stainless Steel Link Seal Product Sizes


Carbon Nuts and Bolts (EPDM) 
Stainless Steel Nuts and Bolts (EPDM) 
LS-200 C Link Seal
LS-200 S 316 Link Seal
LS-275 C Link Seal
LS-275 S 316 Link Seal
LS-300 C Link Seal
LS-300 S 316 Link Seal
LS-315 C Link Seal
 LS-315 S 316 Link Seal
LS-325 C Link Seal
 LS-325 S 316 Link Seal
LS-340 C Link Seal
 LS-340 S 316 Link Seal
LS-360 C Link Seal
 LS-360 S 316 Link Seal
LS-400 C Link Seal
 LS-400 S 316 Link Seal
LS-410 C Link Seal
 LS-410 S 316 Link Seal
LS-425 C Link Seal
 LS-425 S 316 Link Seal
LS-475 C Link Seal
 LS-475 S 316 Link Seal
LS-500 C Link Seal
 LS-500 S 316 Link Seal
LS-525 C Link Seal
 LS-525 S 316 Link Seal
LS-575 C Link Seal
 LS-575 S 316 Link Seal


Ready to order - or - have questions? Call us at 866-777-8001


Complete List of Applications for Link Seal

Electrical Electrical Isolation Refrigeration Facilities
Tunneling Sway & Noise Control Thermal Storage
Pool Installation Electrical Isolation Telecommunications
Coal Plants Fluid Overflow Devices Waste Treatment Plants
Fountains Marine High Pressure Tank Guards
Septic Tank Installations Guard Post Assemblies Fire Protection Wall Penetrations
Paper & Pulp Dual Containment Oil Rigs
Bridge Construction Interior Piping Systems Underground Steel Tanks
Mining Precast Concrete Vault Seals Perimeter Berm Installations
Through Deck Fire Breaks Cased Railroad Crossings Flow Restrictors


Fatures of Link Seal Modular Seals

Saves Time and Money - installs in 75% less time than typical installation methods

Positive Hydrostatic Seal - Rated at 20 psig (40 feet of head)

Long Life - They are permanent seals - resisting aging, ozone, water, sunlight and chemicals.

Protection Against cor - Uses a proprietary coating on Carbon Steel and offers 316 SS for corrosion resistance.

ISO Certified - Manufactured in a ISO 9001:2008 certified facility (USA Manufactured)

Configurable - Choose your size for wall opening, pipe sizing and more.


Properties of Link-Seal Modular Seals

Seals: EPDM (black & blue), Nitrile (green), Silicone (grey)

Material Type: Carbon Steel or 316 Stainless Steel

Plates: Reinforced Nylon Polymer

Temperature Range: -40 degrees F to 250 degrees F (EPDM), -40 degrees F to 210 degrees F (Nitrile), -67 degrees F to 400 degrees F (Silicone)