viscotaq sealant on tank chime dist by indumar

With its cartridge-dispenser system, ViscoSealant delivers a simple method for sealing above-ground flanges and gaps in tank chimes and for waterproofing cable and pipe penetrations.

It has the same advanced chemistry as the other Viscotaq® products, meaning this formulated polymer retains permanent wetting characteristics, allowing the viscous elastic polymer to flow into the pores and anomalies of the substrate. It has immediate, long-lasting adhesion to steel, PE, PP, epoxy, polyurethane, PVC, and more without roughening.

It's the solution Sekisui Specialty Chemicals America reached for when 13 tanks at its polyvinyl alcohol plant in Pasadena, Texas needed to be resealed. The plant used the sealant to provide a moisture barrier and seal off the tank bottoms.

"InduMar's Viscotaq® was a product that could easily be installed by anyone and at the lowest-cost basis," said Douglas Reno, the plant’s maintenance and reliability manager. "The product sales itself. I would give InduMar a nine out of 10 as a rating for their product and support."

ViscoSealant is specially designed for a wide range of structural applications where water leaks are a problem.

  • No cure or hardening time required
  •  Storage stable (dry/cool) with an unlimited shelf life

Jump to technical specs

Viscotaq® Application and Product Data sheets

ViscoSealant Data Sheets

Viscotaq® is a registered trademark of J. van Beugen Beheer b.v.

Contact us to Order ViscoSealant



  • Holes and voids, cracks
  • Storage tanks
  • Industrial pools
  • Swimming pools
  • Manholes
  • Basements
  • Floors
  • Cable joints and repairs
  • Residential and commercial roofing, EPDM roofing – sealing around rooftop vents, pipes, metal roof seams, flashings, and cable entries

It can also be used in conjunction with ViscoWrap-ST for the ultimate corrosion prevention solution.

"The stickiness is good for the pipes – it’s not going to let any moisture through. It works really well with stainless steel."

– Jesse Moran, project manager for TruStar Energy.


Technical Information





Glass Transition Temperature


ASTM E1356-03

Material state





DIN 53479


Caulking material


Melting point


ASTM E1356-03

Yield point


ISO 3219

Water Vapor Permeability

<4 *10-4 g/day/m2/Pa

ASTM E96/96M-10

Water Absorption


ISO 62

Water Penetration

<0.14% (1800 hrs, 6V, 3% NaCl)

ASTM G9-87

Volume Resistivity

>2.2* 1013 ohm*cm

ASTM D257-07

Surface Resistivity

>5.6* 1015 ohm*m2

ASTM D257-07

Dielectric Strength

>17.5 kV/mm

ASTM D149-09

Wet Adhesion Test



 CSA Z245-20-06 Sec 12.14

 Salt Spray test

Excellent, no undercreep, no corrosion, rating 10

 ASTM B117-09