Sani-Tred - Basement Waterproofing System



PermaFlex Technical Data




Sani-Tred  Deck Coating & Repair




Single Component Polyurethane Coating



Elongation Memory®, Flexible Penetration®  and Permanent Elongation®


Retains Negative Hydrostatic Pressure

University Of Wisconsin Milwaukee Lab Testing

We are happy to announce that in a University of Wisconsin Lab Testing Sani-Tred's PermaFlex (with 3 coats on concrete) has passed an unprecedented vacuum testing 29” Hg for 110 hours.

This is a perfect score and could not be any better for interior basement waterproofing!

With a proven 99% effectiveness at eliminating radon and a perfect score of 29" Hg for 110
hours no other product or system in the world is as effective as

Three unique properties allow SANI-TRED products to retain negative hydrostatic pressure unlike any other products in the world; Flexible Penetration ® technology, Elongation Memory ® technology and Permanent Elongation .®

SANI-TRED PermaFlex, (liquid rubber primer and top coating), penetrates deeply into the pores of the substrate (foundation building material), and produces tiny solid rubber sealing plugs due to Flexible Penetration®. These tiny plugs or sealing tentacles in each and every pore or small crack in the substrate holds back and retains ground water pressure before it has a chance to push it off, en masse, as with other types of coatings. These sealing tentacles work like tiny, high pressure, hydraulic o-rings and on one of the main qualities that allow SANI-TRED can to hold back great unprecedented and extreme negative hydrostatic pressure without failure!

Elongation Memory ®technology ensures that when SANI-TRED products are compressed and relaxed, they maintain their original shape and size preventing distortion of their original shape and size which is a major cause of release of coatings from powerful forces such as freeze/thaw cycles, water or gas pressure, vibration and sudden shock.

Permanent Elongation® provides that SANI-TRED products never harden or become brittle; they maintain flexibility and become stronger with age without breaking down as other coatings do. SANI-TRED PermaFlex deep penetrates and strengthens weak concrete or mortar joints which prevent detachment from these types of weak substrates as other coatings are known to do.


PermaFlex is a single component, high solids, environmentally safe, liquid applied, hybrid polyurethane protective coating.

PermaFlex is an anti-corrosion & waterproofing coating that can be used either indoors or outdoors.  PermaFlex will bond permanently to properly prepare concrete, wood, aluminum, steel, and some plastics, as well as most all other standard building materials. 

PermaFlex will never bubble, chip, peel, crack, or delaminate from vehicle traffic, exposure to extremes of ambient heat up to 250°F cold, or Negative Hydrostatic Pressure.


  • Quarts
  • Gallons Pails
  • 5 Gallon Pails
  • 53 Gallon Drums
  • 250 Gallon Totes


  • Light Tan
  • Light Grey
  • Black
  • Custom Colors Available (100 gallons, 379 liters or more)


  • 2,600 psi tensile strength
  • 590% elongation
  • Moisture vapor drive retention exceeds 30 psi
  • Exceeds all ASTM vacuum testing - maintains 29” Hg for 110 hours  with zero leak
  • Volume Solids 92.2%
  • Coverage of 240 sq. ft. per Gallon
  • Viscosity 75°F 5000 ± 900 CPOIS
  • Shelf Life – 2 Years
  • Temperature range -15° to 250°F
  • Tack Free 4 Hours @ normal temperatures
  • Non-flammable, non-combustible


  • Non-hazardous, non-toxic, solvent free, low VOC, and low odor
  • Will cure tack free in 4 hours or less at normal temperatures (70°F)
  • Will cure tack free overnight at -15°F
  • Highly abrasive resistant
  • Bonds to itself, new-to-old, with proper surface preparation
  • Permanently withstands negative hydrostatic pressure
  • Permanently withstands moisture vapor drive
  • Resistant to most oils, solvents, caustics & acids
  • Can be brushed, rolled or sprayed
  • Easily sanitized
  • May be subjected to extreme cold during shipping, handling & storage without ill effects
  • Completely Water-Proof not “Water Resistant”



Sani-Tred representatives are available to assist you in selecting an appropriate product, to provide application instructions or safety precautions. For further assistance call our technology service department at 1-866-784-3308. Refer to MSDS for safety precautions.




Sani-Tred  Basement Waterproofing



Single Component Polyurethane Elastomeric Coating


Dry Film Thickness Per Coat


6 + 2 mils



Shore A 80±5

Shelf Life


24 Months

Flash Point



Tear Resistance

ASTM-624 Die C


Tensile Strength

ASTM D-412


Adhesive Strength

ASTM D-903


Negative Hydrostatic Pressure

University Testing

29" Hg for 110 hours



0.65 lb/GL

Shelf Life


s24 Months

Specific Gravity



Total Solids by Weight

ASTM D-2369


Total Solids By Volume

ASTM D-2697


Ultimate Elongation

ASTM D-412


Abrasion Resistance

ASTM D-421

15t 800mg. Taber Abraser H-18 wheel, 1,000 cycles No Significant Effects

Viscosity at 24°C (75°F)


5000 + 900 cpoises

Volatile Organic Compounds V.O.C.

ASTM D-2369-81

0.65 lbs/gallon





Salt Water

No Effect

Distilled Water

No Effect

5% Detergent Solution

No Effect

Anti Freeze

No Effect

Hydrochloric Acid 36%

No Effect (higher testing not required)

Sodium Hydroxide 50% Solution

No Effect (higher testing not required)

Sulfuric Acid 60% Solution

No Effect (higher testing not required)

H²S (Hydrogen Sulfide) 30 Day Immersion

No Effect

Sulfuric Acid  5% Solution 30 Day Immersion

No Effect

Sulfuric Acid 10% Solution 30 Day Immersion

No Effect


No Limit – No Effect

Ammonium Hydroxide

No Limit – No Effect

Nitric Acid 50% Solution

Up To 50% - No Effect

Hydrogen Peroxide 50% Solution

No Limit – No Effect

Hydrogen Fluoride

No Limit – No Effect

Hydrogen Sulfide

No Limit – No Effect

Calcium Hydroxide

No Limit – No Effect


Slight Stain

Motor Oil

Slight Stain

Hydraulic Brake Fluid

Slight Bleaching

Diesel Fuel

No Effect

JP - 4

No Effect

JP - 5

No Effect

JP - 7

No Effect

JP - 8

No Effect


Jhon Jessen

Five years ago our basement was more of a swimming Floor then a useable basement. The walls were fieldstone with mortar. The floor was cracked in so many places that after it rained the water came up like springs!...READ MORE

Todd Brannan

My name is Todd Brannan and I ordered the basement waterproofing  system a few months ago. Thanks sanitred, now I'm setting things on the basement floor I could have never put there before. Good Product... READ MORE

Larry Piccirilli

I am totally impressed and pleasantly surprised.  I am highly recommending the Sani-tred system to my friends even if they don't have water problems.  I figure if I tell everyone about it, they will remember where to come and get the info...READ MORE

Stu Cassell

Our swimming pool was losing 2-3 inches of water a day. We had two different pool companies attempt to fix the leaks. Neither was successful...READ MORE

Wes Lukaszek

First of all, I want to thank you for your expert advice about your products. Everything worked as you said it would. Your products are very easy to work with...READ MORE

Curt Hugo

I wanted to let you know I used your product, PermaFlex and LRB/TAV on the cracks on my basement wall. I'm very impressed with the results....READ MORE