SikaProof®-315 HDPE SG IN

Bonded sheet membrane according to IS 16471 : 2017

HDPE sheet membrane with adhesive layer and sand topping

12 months from date of production

The product must be stored in original unopened and undamaged sealed packaging in dry conditions and temperatures between +5 °C and +30 °C. Protect from direct sunlight, rain, snow and ice, etc. Store in a horizontal position. Do not stack pallets of the rolls on top of each other, or under pallets of any other materials during transport or storage.

The following system products must be used:

• SikaProof®-315 HDPE SG IN sheet membrane
• SikaProof® Sandwich Tape-100 IN double sided self-adhesive tape

Ancillary products:
Accessories and complementary products are available to provide detailing and connection solutions

+5 °C min. / +40 °C max.

+5 °C min. / +40 °C max.

IMPORTANT

Strictly follow installation procedures

Strictly follow installation procedures as defined in Method Statements, application manuals and working instructions which must always be adjusted to the actual site conditions.

• Measuring tape
• Marking pen
• Razor knife
• Scissors
• Pressure roller
• Clean lint-free cloth
• Metal straight edge for cutting
• Hot air gun (Leister Triac)

IMPORTANT

The substrate application surface must be smooth, uniform and clean with no standing water.

SikaProof®-315 HDPE SG IN must be applied on a sufficiently stable substrate to avoid movement during the construction works. Large gaps and voids (≥ 12–15 mm) must be filled before membrane installation. Substrate can be damp or slightly wet. Suitable membrane fixing substrates include:

• Concrete blinding
• Formwork
• Rigid thermal insulation
• Plywood sheets / form
• Shotcrete
• Dimpled sheet drainage board

IMPORTANT

Application by trained personnel

The application of this Product must only be carried out by an applicator that is trained or approved by Sika. The applicator must also be experienced in this type of application.

IMPORTANT

Unsuitable weather conditions for application

Do not install the membrane during continuous or prolonged rain, snowfall or sandstorm. If SikaProof®-315 HDPE SG IN is to be applied below +5 °C, exceptions are possible under special circumstances with appropriate precautions. Contact Sika Technical Services for more information.

IMPORTANT

Penetrations and construction joints

Additional Sika joint sealing solutions must be used for connections around penetrations and for construction joints.

IMPORTANT

Use of double-faced formwork

In cases of double-faced formwork, the membrane may show debonding from concrete, this does not affect the watertight performance of membrane. It is preferred to use post applied systems in projects with double-faced formwork.

IMPORTANT

Covering the membrane system

Permanent exposure to UV light will reduce the performance of the membrane system.

1. Concrete must be placed within 45 days after membrane system installation.
2. Proper concrete installation (mix design and workmanship) is required to achieve optimum bond of the membrane system to the concrete.

Installation method
After substrate conditions have been fulfilled, the waterproofing membrane is installed by loose laying onto horizontal / inclined substrates or fastening onto vertical substrates.

Longitudinal and transverse joints
Side lap joints of SikaProof®-315 HDPE SG IN are sealed by overlapping the membranes by 80 mm to 100 mm and removing release liner in longitudinal direction. Transverse joints shall be sealed by removing the granular sanded layer with a hot air tool (scraping) and then overlapped by 80 mm to 100 mm and bonded and sealed with cold applied SikaProof® tapes. Use rollers to release air pockets within joints to ensure proper sealing and bonding. The tape and selvedge adhesive can be heated by hot air gun to remove moisture or condensation and improve initial adhesion in cold conditions.

Detailing
Form all details and connections using the appropriate SikaProof® ancillary products outlined in the Sika® Method Statement: SikaProof®-315 HDPE SG IN.

Inspection and quality control of installation
A final inspection before placing concrete must be carried out to ensure the complete membrane system has been correctly installed, any damage repaired, and the surface of the adhesive layer is clean.

Concrete placement
Place concrete directly onto or against the membrane within 45 days after installation. No mortar or protection screed must be used before placement of reinforcement and concrete.

Formwork removal
After removing the formwork, all penetrations such as shuttering anchors, any membrane damage and construction joints must be sealed using the appropriate SikaProof® ancillary products or complementary Sika® Waterproofing Systems.

Backfilling protection

After formwork removal and before backfilling, SikaProof®-315 HDPE SG IN system must be protected with an appropriate protection sheet as soon as possible or at the latest within 45 days.

Note: Suitable ancillary systems such as spray applied coatings, liquid applied membranes, preformed modified membranes may be used in vertical and detailing applications. Please seek advice on these transitions from Sika Technical Services.

Reference must be made to the Sika Method Statement: SikaProof®-315 HDPE SG IN