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Adeka KM-String KM6MM 165' Case
Adeka Ultraseal KM-String KM6MM is a 6 mm hydrophilic rubber string for larger sheet-pile interlocks, cracks, and CIPP where the 4 mm string is too small.
- About 1/4 in for larger interlocks and gaps
- Stretch and insert into the gap
- About 3 times volume swell to fill the void
$468.36
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Adeka Ultraseal KM-String KM6MM Hydrophilic Waterstop
Adeka Ultraseal KM-String KM6MM is a hydrophilic vulcanized rubber string about 6 mm (1/4 in) for larger sheet-pile interlocks, cracks, and CIPP. It swells about 3 times by volume, can be stretched and inserted, and can stop flowing water. The 6 mm diameter is the larger-gap choice when 4 mm will not fill the opening. A 4 mm string is available as the Adeka KM-String KM4MM.
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Key Features
- 6 mm diameter for larger gaps than KM4MM
- Sheet-pile interlocks on a wider opening
- CIPP and crack work where 4 mm will not fill
- Stretch about 40% to get the string seated
- About 3 times volume swell fills the void
- Chemical and seawater exposure on the KM compound
Applications
- Larger sheet-pile interlocks
- CIPP liner work
- Wider cracks
- Existing joints bigger than 4 mm
Technical Specifications
| Property | Value |
|---|---|
| Size | 6 mm (about 1/4 in) |
| Packaging | 165 ft per case |
| Volume change | 170% (about 3 times) |
| Linear expansion | About 1.45 |
| Hardness | A33 (representative) |
| Tensile strength | 6 MPa (representative) |
| Elongation | 800% (representative) |
| Vulcanization | Yes |
| Specific gravity | 1.18 (representative) |
| Hydrophilic agent | Urethane polymer |
Product documents: Adeka Ultraseal KM-String Technical Product Data Sheet (PDF)
Frequently Asked Questions
When is Adeka Ultraseal KM-String KM6MM the right diameter versus the 4 mm string?
KM6MM is about 6 mm (1/4 in) for larger interlocks and gaps. Adeka Ultraseal KM-String KM4MM is the 4 mm (3/16 in) string when the opening is smaller. Diameter follows gap width, about 1.2 times on the OCM sheet.
How does Adeka Ultraseal KM-String KM6MM differ from KM-3030M on a formed joint?
KM-String KM6MM is a round string you insert into an existing gap, crack, or interlock. Adeka Ultraseal KM-3030M is a 30 x 30 mm mesh strip for formed expansion, isolation, and thick cold joints in new concrete. They are different shapes for different joints.
Does a 3 times volume change mean Adeka Ultraseal KM-String KM6MM triples in diameter?
No. The OCM sheet says the volume coefficient of 3 times is volume, not size. Linear expansion is about 1.45. KM6MM fills the void it sits in; it does not become an 18 mm string.
Can Adeka Ultraseal KM-String KM6MM be used for CIPP and cracks as well as sheet pile?
Yes. CIPP, cracks, and sheet-pile interlocks are all listed uses for KM-String. KM6MM is the larger-gap choice in that set.
When would I use Adeka Ultraseal P-201 instead of KM-String KM6MM?
Use P-201 when the detail is rough, damp, or uneven and a paste bead will seat where a 6 mm string will not. Use KM6MM when there is a formed gap that can take a stretched string.
Does Adeka Ultraseal KM-String KM6MM hold up in chemical or seawater exposure?
Yes. The KM compound sheet lists seawater and cement water among the solutions, with no toxic substances or heavy metals.
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