Product Data Sheet
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SikaFix® HH Hydrophilic

SikaFix® HH Hydrophilic

low Viscosity, expanding, polyurethane chemical grout

SikaFix® HH Hydrophilic is a nonflammable hydrophilic polyurethane resin designed to form a flexible gasket or plug joints and cracks in concrete from water infiltration. In its uncured form, SikaFix® HH Hydrophilic is a pale yellow liquid. When it comes in contact with water, the grout expands quickly and cures to a tough, flexible, adhesive, closed cell foam that is essentially unaffected by mildly corrosive environments.

  • Contains no volatile solvents.
  • Non-flammable.
  • Free Foam expands to 6 times its liquid volume.
  • High elongation creates tight seal in moving cracks.
  • Non-corrosive
Product Data Sheet
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Usage

  • Sealing leaks through concrete cracks and joints.
  • Saturating backer rod to seal joints by the gasket method.
 

Advantages

  • Contains no volatile solvents.
  • Non-flammable.
  • Free Foam expands to 6 times its liquid volume.
  • High elongation creates tight seal in moving cracks.
  • Non-corrosive

Packaging

5 gallon pail.

Color

Pale yellow

Product Details

Product Information

Chemical Base

100% solids polyurethane chemical grout

Shelf Life

1 year in original, unopened container.

Storage Conditions

Store in a dry area between 40–90 °F (4–32 °C) using original re-sealable containers. Low temperatures will affect viscosity. To minimize this effect, store the product at room temperature for a minimum period of 24 hours prior to use. Material must be preconditioned to between 60–90 °F (16–32 °C) before use. If site temperatures are extremely low, heat bands or heated water baths may be used on the pails, before and during use to maintain the products temperature. Immerse only the lower 2/3 of the pails. Avoid splashing water into open containers. Do not use if ambient temperature is below 40 °F (4 °C).

Density

Uncured (74 °F (23 °C))Cured (ASTM D-1622)
1.164 lbs/ft3

Flash Point

> 200 °F

Viscosity

650 cps

(74 °F (23 °C) (ASTM D-1638))
Technical Information

Tensile Strength

Cured

170 psi

(ASTM D-638)

Shrinkage

< 1%

Chemical Resistance

Unaffected by mildly corrosive environments.

Application

Application Information

Reaction Time

Reaction Initiation Time 1:1 with water:    30 sed at 77F (25C)
Application steps

SUBSTRATE PREPARATION

When the crack is contaminated at the outside, it will be necessary to clean the crack surface so that the crack can be exactly located. If the crack is wide or high water flows are encountered, it will be necessary to seal the surface of the crack with a surface sealing material (SikaSet® Plug, Sikadur® 31 Hi Mod Gel, or open cell polyurethane foam saturated with SikaFix® HH Hydrophilic). The surface sealing can be done before or after drilling the injection holes, depending on the particular situation.

MIXING

Prior to installation the material should be agitated vigorously shaking the 5 gallon pail or by mixing with a jiffy mixer, bung mixer or by hand. During injection the grout will follow the path of least resistance. When the material has stopped migrating, it will continue to expand against the confines of the crack/joint and compress within itself, forming a very dense, closed cell material and stopping the leak.

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