Fast-curing, two-part, self-expanding polyurethane foam for watertight seals
Sika Boom®-405 Water Stop is a two-part, fast curing, self-expanding polyurethane sealing foam that doesn't need ambient moisture to cure. Its high density and very fine, predominantly closed cell structure lead to a watertight seal in wall openings for pipes, ducts or pipe connections. The special packaging allows the application to be interrupted and then resumed by replacing the nozzle.
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Tested for up to 1 bar water pressure.
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Multiple instances of partial discharge possible.
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Ready to apply (no pre-activation needed).
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Very fast curing.
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Good dimensional stability when cured (no shrinkage or post-expansion).
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Good thermal insulation.
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Can be cut, trimmed, sanded and painted.
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Usage
Sika Boom®-405 Water Stop is used above and below ground.
Sika Boom®-405 Water Stop is used for interior and exterior applications.
Sika Boom®-405 Water Stop is used for sealing:
- Wall openings for pipes or ducts.
- Cable ducts.
- Prefabricated concrete elements.
- Pipe connections, such as those in a manhole.
- Pipe plug seals for diameters up to 200 mm.
Advantages
- Tested for up to 1 bar water pressure.
- Multiple instances of partial discharge possible.
- Ready to apply (no pre-activation needed).
- Very fast curing.
- Good dimensional stability when cured (no shrinkage or post-expansion).
- Good thermal insulation.
- Can be cut, trimmed, sanded and painted.
Packaging
Container specification | Box content | 320ml, canister with lever and 2 nozzles each | 15 canister per box |
Refer to the current price list for available packaging variations.
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Technical Information
UV Exposure
Not permanently UV-stable
Diffusion Resistance to Water Vapour
Equivalent Air Layer Thickness for Water Vapour
Service Temperature
Maximum | +80 °C (briefly up to +100 °C) | Minimum | -40 °C |
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Application Information
Product Temperature
Optimum | +18 °C min. / +25 °C max. |
Ambient Air Temperature
Maximum | + 30 °C | Minimum | + 5 °C | Optimum | + 20 °C |
Substrate Temperature
Maximum | +35 °C | Minimum | +5 °C | Optimum | +20 °C |
Cutting Time
(time after which a 30 mm bead can be cut)
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The above design is only a sample of the options available, for reference purposes only. Our policy of continuous improvement may result in a change of specifications without notice. If any discrepencies might be between the data sheet values and standards, we reserve the rights to make technical changes. Our company will not be held responsible, as all or any of pictures, drawings, weights and dimensions details or other elements in this document are only indicative and must not be considered contractual. Contact our sales team for other specifications or custom made products.
Contact our sales team for other specifications or custom made products.