Sikalastic®-215 DRYLOK®

Concrete & Masonry Waterproofer

Sikalastic®-215 DRYLOK®

Sikalastic®-215 DRYLOK® is a concrete and masonry waterproofer using unique polymer technology that penetrates porous substrates, seals capillary pores, and forms a durable, smooth waterproofing finish. It includes a biocide to resist mildew on the dry film and is tested to ASTM D7088, withstanding 15 PSI - equivalent to 10 meters of wall water pressure.

  • Stops water even under pressure
  • Ready to use
  • Bright white, smooth finish
  • Resists 15 PSI, equivalent to a wall of water 10 meters high
  • Resists mildew on the dry film
  • Helps mitigate efflorescence
Product Data Sheet Show all documents

Overview

Usage

Ideal for interior/exterior, above/below grade masonry including cinder, concrete block, stucco, bricks, and even bare concrete pool.
  • For positive and negative waterproofing
  • For basements, lift pits, and non-potable water tanks, etc.
  • For long-term soaking environments such as pools and fountains.
  • For home decoration or DIY waterproofing in kitchens, bathrooms, walls, and similar areas.
  • Can be recoated with latex paint or used under tiles.
 

Advantages

  • Stops water even under pressure
  • Ready to use
  • Bright white, smooth finish
  • Resists 15 PSI, equivalent to a wall of water 10 meters high
  • Resists mildew on the dry film
  • Helps mitigate efflorescence

Packaging

5.0 kg, 20 kg

Colour

White

Product Details

SUSTAINABILITY

Conformity with LEED v2009 IEQc 4.2: Low Emitting
Materials - Paints and Coatings

CERTIFICATES AND TEST REPORTS

  • Resistance to Hydrostatic Pressure to 10 meters according to ASTM D7088
  • Singapore Green Building Product Certificate Excellence

Shelf life

2 years from date of production

Storage conditions

Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between 4 °C and 35 °C.

Density

~1.38 g/ml

pH-Value

9.0 ± 0.5

Solid content

69.0 ± 2 %

Volatile organic compound (VOC) content

< 25 g/L

ISO-11890-2

  

Abrasion resistance

Washability: 10,000 cycles

(internal for paint evaluation)

Tensile adhesion strength

>1.0 MPa

(ASTM D7234)

Resistance to UV exposure

1000 hours: No chalking, crack, blistering

(GB/T 18244-2022)

note: Accelerating test per cycle: UVA-340nm 108 min dry @ 63°C +12 mins condensation @ 50°C

Microbiological resistance

Pass

(GB1741-2020)

Water penetration under pressure

No water penetration @0.3MPa pressure 120 mins

(GB/T 16777)

Water penetration under negative pressure

No water penetration @ 15 PSI

(ASTM D7088)

Application

Ambient air temperature

+10°C min. / +40 °C max.

Relative air humidity

85 % max

Waiting time to overcoating

Base layers

Waiting time

1st layer to primer

 ~ 30 mins

2nd layer to 1st layer

 ~ 2 hours

Topcoat with latex paint* 24 hours

Note: Above values are at +25 °C and 50 % relative humidity. Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.

* When interior or exterior painting is required.

Consumption

Primer 

Sikalastic®-215 DRYLOK®

0.3 kg/m2

1st layer 

Sikalastic®-215 DRYLOK®

0.6 kg/m2

2nd layer

Sikalastic®-215 DRYLOK®

0.6 kg/m2

 Wet film thickness:                                    1.10 mm

 Dry film thickness:                                     0.75 mm

EQUIPMENT

Brush or roller or spray

SUBSTRATE QUALITY

New concrete: When applying to new concrete, let concrete cure for 28 to 30 days or reach a pH of below 10 before applying Sikalastic®-215 DRYLOK®.

SUBSTRATE PREPARATION

Surface must be clean and free from dirt, dust, grease, oil, form release compound, or paint.

Old paint in poor condition must be removed by using suitable means.

Patch all holes or cracks and the floor/wall joint with Sika®-102 Waterplug or Davco Rapid Plug a fast-setting hydraulic cement, and smooth the patch evenly with the surface.

Efflorescence, a white, powdery, crystal-like deposit visible on the masonry surface, must be removed. Muriatic acid is one of effective efflorescence removal agents. 

APPLICATION

STIR THOROUGHLY BEFORE AND DURING APPLICATION. 

Only primer allowed adding maximum 10% water.

Air and surface temperatures must be 10°C or higher.

Substrate moisture content maximum 5%. 

Wait for a dry (rain-free) period to apply. It is recommended to test the product in a small area prior to full application to ensure the desired effect is achieved.

For first coat primer application, always recommend good quality nylon bristle brush, apply Sikalastic®-215 DRYLOK® into the pores of the masonry, making sure to fill all pores and pinholes. 

Second and third layer can be applied by roller [3/4” (19mm) nap], brush, or spray. 

APPLY THREE COATS. 

Spray specification:

Airless Spray: Graco Max II 595 PC Pro Electric Airless Sprayer, Hi-Boy

Hose: 1/4’’ *50’

GPM: Max 0.7

Tip: 0.031”

Manifold Filter: 30 mesh

Gun Filter: 60 mesh

Spray tips: To achieve production rates at 600g/m2 (WFT 430 μm) best results using a 525 or 527 reversible tip. (Two passes overlapping the spray pattern).

 

Clean: Flush pump and clean sprayer with hot soapy water

Appearance:

For brush application, it will leaves brush mark;

For spray application it will show ideal smooth finish. 

However, for decorative purposes, you can apply a good quality latex paint. Wait 24 hours before applying decorative topcoat.

CLEANING OF EQUIPMENT

Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed.

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