Sika Boom®-405 Water Stop

• VOC emission classification GEV Emicode EC1^plus

• Reaction to Fire Classification DIN 4102-1, SikaBoom®-405 Water Stop, MPA Hannover, Report No. P-NDS04-1365.
• Sealing test ÖNORM B 5013-3, Sika Boom®-405 Water Stop, Ofi, Report No. 17.00805-7u.
• Sealing test, Sika Boom®-405 Water Stop, Ofi, Report No. 17.00805-1u.
• Thermal conductivity, water vapour diffusion, water absorption, Sika Boom®-405 Water Stop, Ofi, Report No. 1700805-2.

2-part polyurethane foam

9 months from date of production

The Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +25 °C. Store in an upright position. Protect the canister from direct sunlight and temperatures above +50 °C (danger of exploding). Always refer to the packaging.

Refer to the current Safety Data Sheet for information on safe handling and storage.

Not permanently UV-stable

(time after which a 30 mm bead can be cut)

The substrate must be clean, sound, firm, free from oils, grease, dust and loose or friable particles. Paint, cement laitance and other poorly adhering contaminants must be removed. The Product adheres without primers or activators to most building materials such as wood, concrete, brick, metal or aluminum. For non-conventional substrates a preliminary adhesion test is recommended.

IMPORTANT

Excess moisture

Do not pre-dampen the substrate and remove excess moisture. Excess moisture on the substrate may lead to adhesion problems and to shrinkage once the foam is cured.

IMPORTANT

Roughening and priming

When used for substrates such as polyethylene (PE), polypropylene (PP) or polyvinylchloride (PVC) the substrate must be roughened with an abrasive paper or abrasive pad and pre-treated using a suitable primer or activator such as Sika® Aktivator-205.

IMPORTANT

Securing moving components

Firmly secure all moving components which are meant to be sealed against possible movement, until the product has fully cured.

Neither manual pre-activation nor mixing is required. The mixing process of the two parts contained in the canister takes place automatically in the nozzle. Shake canister well prior to application.

IMPORTANT

Minimum and maximum width of area to be sealed

The area to be sealed must have a minimum width of 10 mm. The foam is tested to provide a watertight seal for pipes with a diameter of up to 200 mm.

PREPARING THE CANISTER FOR APPLICATION

1. Shake the canister well for a minimum 20 times before use. Note: Repeat shaking after periods of non-use.
2. Remove the cap from the canister.
3. Insert the nozzle into the valve so that the extension tube of the nozzle points in the direction of the arrow.
4. Fold the application lever over the nozzle head.
5. IMPORTANT: Non-uniform colour of the foam indicates incorrect mixing of the two parts in the nozzle. Dispense a small amount to check the colour.
6. If the colour is not uniform, remove the nozzle and shake the canister again 20 times.
7. Mount another nozzle, dispense a small amount of foam and check the colour.

If the colour is uniform, you can proceed with the application. If not, repeat the two previous steps.

APPLYING THE PRODUCT

IMPORTANT

Application in pipes containing cables

When applying the product in a pipe containing cables, the cables must be separated from each other so that the foam can be applied between of all cables.

1. IMPORTANT: The valve system is an on/off valve. Dosing is not possible, otherwise mixing errors may occur. Always press the application lever firmly and all the way. Apply the product by pressing down firmly on the application lever. Fill voids and cavities only partially, as the foam expands during curing.

Interrupting the application

Note: The application can be suspended at any time. Replace the nozzle before resuming the application. Once the can has been opened, use within 2 weeks.

Clean all tools and application equipment with Dual Purpose Foam Cleaner immediately after use. Hardened material can only be mechanically removed.