SikaTop®-599 Seal

12 months from date of production date if stored properly in original unopened packaging.

Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +35 °C. Protect from direct sunlight.

Dmax: ~0,63 mm

+ 5 °C min. / + 35 °C max.

+ 5 °C min. / + 35 °C max.

~1 hour at +20 °C

~2 hour at +20 °C

~ 1.75 kg/l

Dispose of waste and cleaning water in accordance with local environmental regulations.

0.75-1 kg/m²/coat 
This figure is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.

The substrate must be structurally sound, clean, and free from contaminants such as dust, grease, oil, laitance, release agents, previous coatings, or any material that could affect adhesion.

Surface preparation shall be carried out using mechanical cleaning methods such as high-pressure water jetting or grit blasting to achieve an open-textured, slightly rough surface with good cohesion. Aggressive percussive methods, such as scabbling, are not recommended as they may damage the substrate.

All defective areas, cracks, and voids must be repaired with suitable products from the Sika MonoTop® range. For guidance on selecting appropriate repair materials and application techniques, please contact Sika’s Technical Department.

Before application, saturate the substrate with clean water for a minimum of 2 hours, ensuring all pores and voids are adequately wetted. Remove excess surface water before applying SikaTop®-599 Seal. The substrate must be saturated surface dry (SSD), i.e. dark matt in appearance, with no standing water.

Important: Do not add water or any other constituents.

Shake Part A (liquid polymer) thoroughly before use. Pour approximately half of Part A into a clean mixing container. Gradually add Part B (powder) while mixing with a low-speed (≈ 500 rpm) electric single-paddle mixer or other suitable equipment until a uniform consistency is achieved. Add the remaining Part A and continue mixing for at least 3 minutes until a smooth, homogeneous slurry is obtained. Mix only quantities that can be applied within the stated pot life.

Do not use concrete mixers. Mixing must be carried out in clean containers with professional equipment. Incomplete or improper mixing may impair product performance.

Ensure the substrate and ambient conditions comply with the requirements stated. Do not apply under direct sunlight, strong wind, or rain, or when temperatures are below +8 °C or expected to fall below this within 24 hours.

SikaTop®-599 Seal may be applied by brush, roller, or spray equipment, depending on site conditions and desired finish.

Apply the first coat uniformly, working the material firmly into the surface to fill pores and voids.

Allow the first coat to harden before applying the second (typically after 4–6 hours, depending on temperature and humidity).

Apply the second coat in a crosswise direction to the first to ensure complete coverage and eliminate pinholes.

For critical areas such as joints, corners, or cracked substrates, embed Sika® fiber mesh into the first coat while it is still fresh and fully cover it with the second layer.

Ensure all transitions, edges, and details are fully covered to maintain a continuous waterproofing barrier.

Protect freshly applied material from rain, frost, direct sunlight, and rapid drying. Do not apply beyond the product’s pot life.

SikaTop®-599 Seal requires moist curing to achieve full hydration and optimal performance. Protect the coated surface from rapid drying, rain, frost, and direct sunlight during the curing period. Keep the surface damp for at least 3–5 days using light misting, damp hessian, or polyethylene sheeting. This ensures proper development of mechanical strength, adhesion, and crack-bridging properties. Do not apply water pressure or additional layers until the membrane is fully cured. In hot, sunny, or windy conditions, shading or intermittent misting is recommended to prevent premature drying.

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