SikaShield® E50 HDPE SA IN 1,5 mm

Bonded sheet membrane according to IS 16471 : 2017

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 +30 °C. Store in a horizontal poistion in pallets with maximum height 1 meter. Do not stack pallets of the rolls on top of each other, or under pallets of any other materials during transport or storage. Protect from long exposure to direct sunlight.

-15 °C to +50 °C

The substrate temperature must be at least +3 °C above the dew point to reduce the risk of condensation and so limited adhesion.

+5 °C min. / +50 °C max

< 80 %

+5 °C min. / +50 °C max

SUITABLE SUBSTRATES

• Concrete

• Wood

• Metal

• Bituminous membranes with a smooth surface

• Tiles

• Brick masonry

• Cementitious screeds

• Plasterboards

• Plasters

• Foamed concrete blocks, if properly primed (Contact Sika Technical Services for more information)

SYSTEM DESIGN

When designing the waterproofing system, make sure that the supporting structure has sufficient structural strength to support all new and existing layers of the system build-up.

SUBSTRATE CONDITION

The substrate surface must be uniform, firm, smooth and free of any sharp protrusion or burrs, clean, dry, free of grease, laitance, oil, dust and loosely adhering particles.

REPAIR

Unevenness and surface defects (such as blowholes, voids, honeycombing, cracks, protrusions, etc.) in the surface must be pre-treated and filled with suitable Sikadur® or SikaTop® or Sika MonoTop® range of repair materials prior to the application, in order to prevent any subsequent damage to the membrane sheets.

PRIMING

Primer selection

A suitable primer has to be used for an optimal bond between SikaShield® E50 HDPE SA IN 1,5 mm membrane sheet and the concrete substrate, for example:

• SikaShield® Primer S-30 IN
• SikaShield® Primer W-30 IN

1. Apply the appropriate Sika® primer with the required consumption onto the prepared dry surface.
   Note: Refer to the individual Product Data Sheet of the primer.
2. Allow the primer to dry before membrane installation.

For more detailed information please refer to the Method Statement for the SikaShield® E50 HDPE SA IN 1,5 mm membrane system.

IMPORTANT

Unrolling at low temperatures

At low temperatures, the membrane becomes less flexible.

1. Be careful when unrolling to avoid damaging the membrane.

IMPORTANT

Damage through footwear

Footwear with spikes or sharp protrusions may puncture the membrane.

1. Use footwear with a flat profile when walking over the membrane.

IMPORTANT

Application at less than +5 °C

When applying the membranes at temperatures lower than +5 °C, use heating equipment to ensure that the substrate temperature is within the given temperature range.

IMPORTANT

Application in humid/wet conditions

When applying the membranes in wet or humid conditions, use heating equipment to ensure that the substrate is dry before application.

Seasonal symbol

Note: If a seasonal symbol is printed on the roll’s label, it is advisable to use the membrane during the indicated season.

Tackiness at high temperatures

Note: When laying the membrane at high temperatures, the integral adhesive will become 'tacky' and may restrict laying operations.

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 stagger the overlaps of the previous layer.

1. Unroll the membrane.
2. Align the membrane.
3. Re-roll the membrane before application.

MEMBRANE OVERLAPS

1. Overlap the membranes by a minimum of 100 mm on the sides and 150 mm on each end or as specified by the user.
2. At the end overlap, cut off a corner measuring 50 mm per side at an angle of 45°.

Note: The membrane comes with a pre-designed 100 mm selvedge for overlapping at longitudinal joints. Pre-mark 150 mm (no selvedge provided) in the transverse direction of the membrane already fixed.

SELF-ADHESIVE BONDING

IMPORTANT

Do not create counter-gradient overlaps.

1. At one end of the sheet, peel away part of the release liner from the underside and bond this end to the substrate.
2. Continue to peel away the release liner sideways from the rest of the sheet membrane and bond it to the substrate.
3. Roll the entire surface area of the applied membrane with a heavy roller to ensure any air bubbles are removed.

DETAILING

1. 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.

PROTECTION

1. The membrane must be protected from damage during any ongoing site activities or for exposure to environment soon after installation. Suitable protection materials are protection sheet, geotextile, drainage boards, protective screed, etc.