Product Data Sheet Show all documents

SikaTop®-128 K11 Flex Ocean Blue

(former Davco® K11 Flex Ocean Blue)

FLEXIBLE, COLOURED CEMENTITIOUS WATERPROOFING SYSTEM

SikaTop®-128 K11 Flex Ocean Blue is a premium grade, highly flexible, concealed cementitious waterproofing system with high elongation for waterproofing substrates prone to movement and cracking.
SikaTop®-128 K11 Flex Ocean Blue is a two-component product composed of a cementitious powder and solvent free liquid. Its distinctive Ocean Blue tone makes it easy to ensure that the SikaTop®-128 K11 Flex Ocean Blue is adequately applied over the entire application area. With good adhesion to many substrates, and high flexibility for superior crack bridging capabilities, SikaTop®-128 K11 Flex Ocean Blue can be used as a repair material for bridging cracks in substrate or cracks due to shrinkage, up to 2 mm width.
SikaTop®-128 K11 Flex Ocean Blue can be skimmed, plastered and tiled on directly without any reduction in its bond strength.  

  • Low VOC, water-based and non-toxic
  • Colour Blue for easy verification of application area coverage
  • High elongation with crack bridging properties
  • Good adhesion to various substrate.
  • Seals lightweight aerated blocks
  • Will not attack metal
Product Data Sheet Show all documents

Usage

Apply on internal and external surface of precast panel wall and slab, and sealing of precast joints.

Advantages

  • Low VOC, water-based and non-toxic
  • Colour Blue for easy verification of application area coverage
  • High elongation with crack bridging properties
  • Good adhesion to various substrate.
  • Seals lightweight aerated blocks
  • Will not attack metal

Packaging

36 kg/set

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Singapore Green Building Product (Leader) Cert. No. SGBP 4099
Product Information

Shelf Life

12 months from the date of production

Storage Conditions

Store properly in original, unopened and undamaged sealed packaging in dry conditions. Keep away from direct sunlight and frost.
Technical Information

Shore A Hardness

> 40

(ASTM D2240 : 91)

Tensile Strength

≥ 1.5 N/mm² , 28 days
≥ 1.2 N/mm² after immersion in 0.50 % NaOCl, 1.25 % NH₄OH or 3.70 % HCl for 72 Hrs

Elastic Recovery

Passed

(Bridge cracks up to 2 mm)

Tensile Adhesion Strength

Adhesion to concrete

> 0.3 N/mm²

(ASTM D4541)

Chemical Resistance

NaOCI0.5 %
NH4OH1.25 %
HCI3.7 %

Toxicity

Passed

(SS 375)

Resistance to Water Penetration

On concrete by more than 7 times @ 0.2 kgf/cm²

Passed

(DIN 1048)

Elongation at break

≥ 150 %, 28 days
≥ 150 % after immersion in 0.50 % NaOCl, 1.25 % NH₄OH or 3.70 % HCl for 72 Hrs

Application

Application Information

Pot Life

2 hours

(~30 °C)

Drying Time

1 - 3 hours

(Touch Dry)

Contact Time

4 hours

(Foot Trafficable)
Consumption

Consumption

Set Size (kg)Coverage (m²)Thickness (mm)
36~ 14 - 191.2 - 1.5
Application steps

SUBSTRATE PREPARATION

Clean the substrate of any protrusion or substances that may damage the membrane. Ensure all surfaces are free from dirt, dust, grease, oil, wax, curing compounds and any other loose contaminating materials.

Fill all voids, cracks, edges and angles with SikaGrout®-180 or suitable repair material, so that the prepared surface is sound, even and level.

 

MIXING

Pour SikaTop®-128 K11 Flex Ocean Blue - Liquid into a clean mixing container. Add the SikaTop®-128 K11 Flex Ocean Blue - Powder gradually while mixing until a lump free plastic consistency is achieved. It is recommended that mechanical mixing (400-500 rpm) should be used for 2 - 3 minutes to ensure proper dispersion of the components. 
NO ADDITION OF WATER IS ALLOWED.

APPLICATION

  • Pre-wet the surface with clean water. Do not allow water ponding.
  • Very porous surface must be primed with Sikalastic®-500 Acrylic Primer AP prior to applying SikaTop®-128 K11 Flex Ocean Blue.
  • Apply the mixed material onto the prepared surface using a block brush, squeegee or roller in a stiffling action.
  • Apply 1 - 2 coats finish depending on site conditions and film thickness required. If a trowel is used for application, all undulating or uneven areas must be patched to level before applying the SikaTop®-128 K11 Flex Ocean Blue to prevent the material from building up too thick in one application.
  • Before a 2nd coat is applied, the 1st coat must be left for approximately 2 - 3 hours depending on the thickness, substrate porosity and the temperature until it is dry. The 2nd coat should be applied in a direction perpendicular to the 1st coat.
 

CLEANING OF TOOLS

All tools and equipment should be cleaned immediately with clean water after use. Hardened material can only be removed mechanically.

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