Adeka Ultraseal P-201 is a water-swelling, single component, elastic sealant. P-201 is used as a waterstop in new construction and in repair applications. It can be placed on damp or uneven surfaces and functions in a wide range of temperatures and ground water conditions water. P-201 will expand up to 2 times (100%) by volume in the presence of water.
Adeka Ultraseal P-201 is a single-component hydrophilic paste waterstop for cold and construction joints, piping, precast, sheet-pile interlocks, expanded-metal forms, and rough or spalled strip details. It can be placed on damp or uneven surfaces, swells about 2 times by volume, and stays elastic after cure. Once cured, P-201 sits in the same performance class as pre-formed Adeka waterstop.
| Property | Value |
|---|---|
| Form | Single-component grey paste |
| Cartridge | 320 ml (10.8 oz) |
| Volume change | About 100% (2 times) |
| Head at 3/16 x 3/4 in bead | 50 ft |
| Head at 3/8 x 3/4 in bead | 150 ft |
| Cure | Must cure before second concrete |
| Color | Grey |
| Coverage by bead | About 2 in (1/4 in bead) to 4 in (1/2 in bead) |
Product documents: Adeka Ultraseal P-201 Technical Product Data Sheet (PDF)
When should I use Adeka Ultraseal P-201 instead of a strip such as MC-2005T or KBA-1510FP?
Use P-201 when the surface is damp, uneven, rough, or spalled and a paste bead will seat where a strip will not. Adeka Ultraseal MC-2005T and KBA-1510FP want a fair surface and the right cover.
Can Adeka Ultraseal P-201 waterproof expanded-metal stay-in-place forms?
Yes. Expanded metal forms are a listed use. P-201 has to cure before the second concrete is placed on that detail.
What hydrostatic head does Adeka Ultraseal P-201 handle at typical bead sizes?
On the OCM sheet, a 3/16 x 3/4 in bead is about 50 ft of head and a 3/8 x 3/4 in bead is about 150 ft. Bead size is a property of P-201, not a tooling sequence.
Does Adeka Ultraseal P-201 need to cure before the second concrete is placed?
Yes. Adeka Ultraseal P-201 must cure before second concrete. Cure time varies by bead size, temperature, and humidity.
Can Adeka Ultraseal P-201 seal precast segments?
Yes. Precast segments, utility vaults, manholes, tunnels, and riser rings are listed uses for Adeka Ultraseal P-201.
Will Adeka Ultraseal P-201 fill voids beside Adeka strip waterstops on rough concrete?
Yes. Filling rough areas when using Adeka strip products is a listed use, along with PVC waterstop weld seams. That is P-201 as an accessory to a strip, not a replacement for every strip.
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