Products & Equipment  /  Chemicals, Grouts and Repair Mortars  /  Injectable Concrete Repair  /  SealBoss FlexGel Hydrophilic NSF LV Gel
Seal Boss Concrete Solution

SealBoss FlexGel Hydrophilic NSF LV Gel

SealBoss ® FlexGel Hydrophilic NSF LV Gel is a low-viscosity, single component hydrophilic polyurethane gel injection rubber and chemical injection grout offering excellent penetration properties, superior strength and durability.

SealBoss  FlexGel Hydrophilic NSF LV Gel

At a mixing ratio of 1 part SealBoss ® FlexGel to 10 parts water by volume, the mixed product has a super low viscosity of 50 cps. The product is capable of incorporating large amounts of water into itself, thereby forming a waterproofing gel / injection rubber. The ability of SealBoss ® FlexGel leak-seal to swell and increase in volume due to water absorption is one of the important features that differentiate hydrophilic grouts from their hydrophobic counterparts. SealBoss ® FlexGel is certified for water contact in accordance with NSF standard 61, for contact with potable water.

SealBoss ® FlexGel can either react to a foam or a gel on contact with water based on the mixing ratio. The product forms a flexible gel at product to water ratios from 1:4 to 1:15. Less water results in a stronger gel. The gel time is about 1 to 3 minutes varying with temperature and water saturation. At low product to water ratios of 1:1 to 1:2 SealBoss ® FlexGel reacts to a flexible and closed cell foam under pressure. To achieve most satisfying and permanent results, a combination of SealBoss ® FlexGel with other systems of our product line may be advised. Ask your SealBoss ® technician for details. The product is for professional use.

Features and Benefits

SealBoss ® FlexGel System Applications:

  • Stop Water Infiltration
  • Curtain & Bladder Injection Methods
  • Sewers, Manholes, Utility Boxes, Tunnels, Dams
  • Sealing Joints, Pipe joints, Pipe Intrusions
  • Soil Stabilization

Water Activated, Flexible, Hydrophilic
Injection Gel Rubber / Foam:

  • SealBoss ® Product-Pump-Packer System Solution
  • Deep Penetration – 70 CPS SLV
  • Full Cure in Dry & Damp Conditions
  • Flexible, Moisture Insensitive, 2 Comp. Formula
  • Unregulated For Transport
  • This Product is for Professional Use


Stay informed by subscribing to our newsletter and be among the first to hear about upcoming special events, training opportunities and new product announcements!