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1D Characteristics
 
(1) Quick and easy construction! “ม’ฅ
Kuniseal C-31 is coated with a water-soluble film, so it can be applied simply by wetting its surface and placing it on the area to be treated.
Construction is very simple because additional work such as nailing is unnecessary.
Makes construction work very short compared with conventional water sealing materials that can be applied after construction work.
(2) No need for surface preparation
Because Kuniseal C-31 is flexible, it can be applied to uneven surfaces. Kuniseal C-31 closely follows the contours of concrete surfaces, so there are very few gaps. No special surface preparations are needed.
 
(3) High water sealing capacity with bentonite
Bentonite particles readily swell up with water, so they follow the fine contours on a concrete surface. Because of this property, Kuniseal C-31 can completely seal high-pressure water paths in concrete.
 
(4) Self-sealing feature

The air gaps and cracks on concrete surfaces that are formed after application are eventually sealed as the bentonite swells up.

 
(5) Continued water sealing effect

Because Kuniseal C-31 mainly consists of an inorganic clay (bentonite), it does not deteriorate over time and can expand and contract repeatedly.

 
(6) End joints
The ends of adjacent Kuniseal C-31 sheets need not be overlapped with each other. To join two sheets, make a butt joint and kneed the ends together so they are completely fused together.
 
(7) Reduces stress on concrete

Because the fine particles of bentonite swell up with water and thereby reduce the surrounding water pressure, the concrete being treated is not subjected to damaging stresses.

 
(8) Use as a repair material

Make a V-cut groove on a cracked surface, remove the film from the Kuniseal C-31 or dissolve the Kuniseal C-31 in water, and then apply it to the groove. Then, cover the groove with mortar or quick-hardening cement to keep the Kuniseal in place.

 
‚QD Main Uses and Construction Procedure
Horizontal surfaces of concrete construction joints
‡@ Remove dust, etc., from the concrete surface.
‡A Fill a container such as a bucket with water, and lightly soak the Kuniseal C-31 in the water.
‡B Place the Kuniseal over the area to be treated, making sure that it completely covers the area to be treated. If the surface is uneven, strongly press the Kuniseal onto the concrete. (Even if the Kuniseal deforms, its water sealing performance is not affected.)
‡C When the interface between the Kuniseal and concrete dries, the water-soluble film and bentonite of the Kuniseal form a strong bond with the concrete.

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Vertical surfaces of concrete construction joints
‡@ Remove dust, etc., from the concrete surface.
‡A Using a brush, apply the Kuniseal Bond to the concrete surface, and leave as is for a while (usually, wait until the Kuniseal Bond changes from white to translucent). If you apply the Kuniseal C-31 before the Kuniseal Bond becomes translucent, it may not form a strong bond.
‡B Firmly press the Kuniseal C-31 onto the concrete by hand with the film still attached. Use more force if the surface to be treated is uneven. (Even if the Kuniseal deforms, its water sealing performance is not affected.)
 

Sealing around an H-section steel beam
Basically, apply the Kuniseal C-31 to the concrete around the beam. To apply Kuniseal in a cavity, use the same procedure as the one for vertical surfaces of concrete construction joints (see above).
 
‚RD Characteristics

Item
Value
Test method
Weight
‚PD‚T}‚OD‚P
Platform weighing machine
Ignition loss
50% or less
Conforming to JIS K-6350
Consistency
150 or less
Conforming to JIS K-2220
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ฆ Reference values
‚SD Caution
 
œ Kuniseal C-31 must be applied immediately before the second concrete layer.
œ If the area will be flooded for a long period or water will flow over it, provide drainage or cover with a waterproof sheet. Especially, if water will continuously flow over the area, use Kuniseal AB-2505.
œ Store Kuniseal C-31 in a cool, dark place.

 
‚TD End joints
 
The ends of adjacent Kuniseal C-31 sheets need not be overlapped with each other. To join two sheets, make a butt joint and kneed the ends together so they are completely fused together.

 
‚UD Package
 
1 m x 20 pieces (20 m/lot)
 
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