Product Data Sheet Show all documents

Sikaplan® WT 4220-15 C

POLYOLEFIN MEMBRANE FOR POTABLE WATER TANK WATERPROOFING

Sikaplan® WT 4220-15 C is a polyolefin flexible homogeneous smooth sheet membrane with a glass fibre reinforcing inlay. Thickness 1,5 mm. For Temperatures up to +40 °C. Approved for potable water, the product provides a high strength, microbiological, soft water resistant, durable and heat weldable membrane.

  • Approved for contact with potable (drinking) water
  • Contains no solvents, fungicides, heavy metals, halogens or plasticisers
  • High tensile strength and elongation
  • Resistant against permanent water temperature up to +40 °C
  • Resistant to microbiological degradation
  • Flexible in cold temperatures
  • Suitable for contact with acidic soft water
  • Can be installed on damp and wet substrates
  • Heat weldable
 
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Product Data Sheet Show all documents

Usage

  • Lining of enclosed potable water tanks

Advantages

  • Approved for contact with potable (drinking) water
  • Contains no solvents, fungicides, heavy metals, halogens or plasticisers
  • High tensile strength and elongation
  • Resistant against permanent water temperature up to +40 °C
  • Resistant to microbiological degradation
  • Flexible in cold temperatures
  • Suitable for contact with acidic soft water
  • Can be installed on damp and wet substrates
  • Heat weldable
 

Packaging

Rolls are wrapped individually in a PE-film.

Roll size

Length

20,0 m or specified length

Width

2,00 m

Refer to current price list for packaging variations

Colour

Surface

Smooth

Colour

Blue

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance to EN 13361 - Geosynthetic barriers - Characteristics required for use in the construction of reservoirs and dams
  • Water Regulations Certification WTPW 101, Sikaplan-WT4220, SVGW, Certificate No.0310-4729
  • Water Regulations Test Report BS 6920, Sikaplan-WT4220, WRc-NSF, Report No MATLAB 116G
Product Information

Product Declaration

EN 13361 - Geosynthetic barriers for reservoirs and dams

Chemical Base

Polyolefin (FPO-PP)

Shelf Life

5 years from date of production

Storage Conditions

Product must be stored in original unopened and undamaged sealed packaging in dry conditions and temperatures between + 5 °C and + 35 °C. 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. Always refer to packaging.

Effective Thickness

1,50 mm (-5 /+10 %)

(EN 1849-2)

Mass per Unit Area

1,30 (-5 /+10 %) kg/m2

(EN 1849-2)
System information

System Structure

Ancillary Products:

  • Sikaplan® WT 4220-15C Felt 500
  • Sikaplan® WT 4220-18H
  • Sikaplan® W Felt PES 300 Biocide
  • Sarnafil® T Clean, cleaner for soiled membrane surface
  • Sikaplan® WT External/Internal Corner 90° preformed PE
  • Sikaplan® W Flat Profile Stainless Steel
  • Sikaplan® WT Fixation Plate PE light blue
  • Sarnafil® T Prep, cleaner for membrane surface preparation prior to welding
Technical Information

Tensile Strength

15 N/mm²

(machine direction)

12 N/mm²

(cross direction)

Elongation

≥ 480 %

(machine/ cross direction)

Burst Strength

≥ 50 % (D = 1,00m)

(EN 14151)

Resistance to Static Puncture

> 3,00 kN

(EN ISO 12236)

Permeability to Liquid Water

≤ 10-7 m3·m-2·d-1

(EN 14150)

Foldability at Low Temperature

No cracks at - 50 °C

(EN 495-5)

Tear Strength

≥ 120 kN/m (Method B, V = 50 mm/min)

(ISO 34)

Coefficient of Thermal Expansion

120 × 10-6 (±55 × 10-6) 1/K

(ASTM D 696-91)

Resistance to Oxidation

Change of tensile strength

≤ 15 %

Change of elongation

≤ 15 %

Microbiological Resistance

Change of tensile strength

≤ 10 % 

Change of elongation

≤ 10 %

Resistance to Environmental Stress Cracking

≥ 200 h

(ASTM D 5397-99)

Resistance to Weathering

Remaining tensile strength and elongation

≥ 75 % (350 MJ/m2)

Resistance to Root Penetration

Pass

(CEN/TS 14416)

Ambient Maximum Temperature of Liquids

+40 °C

Application

Application Information

Ambient Air Temperature

+ 5 °C min./+ 35 °C max.

Substrate Temperature

0 °C min./+ 35 °C max.
Application steps

SUBSTRATE QUALITY

Substrates shall be clean, dry and free of all contaminants such as dirt, oil, grease, existing coatings, surface treatments, dust, loose friable particles, cement laitance and other poorly adhering materials.

Prior to the installation of Sikaplan® WT 4220-15 C.  The substrate must be disinfected by spraying disinfectant Sikagard® SB, or similar.

If a cushion layer is not specified. Install a geotextile (non-woven fabric) with minimum density of 300 g/m2 beneath the membrane.

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