SikaShield® W162 HDPE ES IN 1,5mm

Polymer modified bitumen

Composite reinforcement

12 months from date of production

The Product must be stored in original unopened and undamaged packaging in dry conditions and temperatures between +5 °C and +35 °C. Store in a vertical position. Do not stack pallets of the rolls on top of each other, or under pallets of any other materials during transport or storage. Always refer to packaging.

+10 °C min. / +40 °C max

Upto 80 %

+10 °C min. / +40 °C max

SYSTEM DESIGN
Consider the following when designing the system:

• The supporting structure must be of sufficient structural strength to support all new and existing layers of the system build-up.
• If used as a roof system, the complete system must be designed to withstand and be secured against wind uplift loadings.

SUBSTRATE CONDITION
The membrane is applied directly onto the adhesive SikaShield® W1 IN mortar after realeasing the bottom liner .Refer to the PDS of SikaShield® W1 IN for further information 

IMPORTANT

Unrolling at low temperatures

1. At very low temperatures, the membrane becomes less flexible.
2. Be careful when unrolling to avoid damaging the membrane.

IMPORTANT
Damage through footwear

1. Footwear with spikes or sharp protrusions may puncture the membrane.
2. Use footwear with a flat profile when walking over the membrane.

IMPORTANT
Application at less than +10 °C

This is not recommended.however if absolutely unavoidable ,when applying the membranes at temperatures lower than that prescribed use heating equipment to ensure that the substrate temperature is within the given temperature range.

ALIGNMENT

IMPORTANT

Avoid coinciding joints
To avoid coinciding joints, lay the membranes parallel to one another. When applying on another bituminous membrane, make sure to straddle the overlaps of the previous layer.
1. Unroll the membrane.
2. Align the membrane.
3. Re-roll the membrane before application.

WET APPLICATION
Preconditions

• Before the application of the adhesive mortar, the concrete substrate has to be saturated with water.
• The adhesive mortar SikaShield® W1 IN is to be applied onto the substrate @ approx 2-3kg/sqm using a notch trowel.
• Use a water : powder of  0.33–0.37(Refer to the Product Data Sheet of the product for further details)
• Lay the membrane directly over the wet adhesive mortar.

Installing the Membrane

• At one end of the membrane, peel away part of the release liner from the membrane's underside.
• Bond this end of the membrane to the adhesive and the substrate.
• Continue to peel away the release liner sideways from the rest of the membrane's underside.
• Bond the rest of the membrane to the adhesive and the substrate.

IMPORTANT

• If the ambient temperature is below +10 °C (though not recommended) , seal the membrane overlaps by heating them with a gas torch or with hot air. Seal the membrane overlaps to avoid trapping the adhesive under the overlap, which can compromise the adhesion.
• Roll the surface of the applied membrane with a roller from the centre to the edge to remove any air bubbles.
• Push any excess of adhesive towards the opposite direction of the sealed side overlap.
• Allow the adhesive mortar to cure for at least 3-5 days at +30 °C before you start backfilling.
• Backfilling or overlay is to be done within 7 days after completion of application to prevent long term UV exposure

 
DETAILING
Use a sharp knife to cut in all details such as internal and external corners, upstands, vent pipes, drains,support metalwork etc.
Refer to the relevant method statement for further information on detailing.