Sika Water Seal Solvent Repellent & Protector 5 Litre SKWATSEAL5 171270

Sika Water Seal Solvent Based Repellent Waterproofer Sealer and Protector 5 Litre SKWATSEAL5

Sika Code: 171270

MPN: SKWATSEAL5

Barcode: 5055047210580

Size: 5 Litre Tin

Product Overview:

Sika Water Seal Solvent-Based Waterproofer and Protector is a high-performance clear masonry sealer designed to defend porous outdoor surfaces against rain penetration, dampness, frost damage, and weathering. Formulated with an advanced solvent-based system, it penetrates deeply into brick, stone, concrete, render, and paving, lining the surface pores with a long-lasting hydrophobic barrier. This invisible coating allows the surface to breathe naturally while preventing water ingress that can cause efflorescence, spalling, mould growth, and heat-loss through damp walls. Suitable for residential, commercial, and trade applications, this 5-litre pack delivers excellent coverage and up to 10 years of reliable exterior protection. Ideal for walls, driveways, patios, paths, and general masonry exposed to harsh weather.

Key Features

• Solvent-based penetrating formula for deep and long-lasting water resistance

• Provides invisible protection without altering the surface appearance

• Helps prevent rain penetration, damp, frost damage, mould, and efflorescence

• Allows the substrate to breathe while blocking water ingress

• Suitable for brick, stone, concrete, render, and paving

• Offers up to 10 years of protection depending on surface and exposure

• Helps preserve heat-insulating properties by preventing moisture absorption

• Easy to apply by brush or low-pressure sprayer

• 5-litre tin ideal for larger surface areas with strong cost efficiency

• Sika Code: 171270 for manufacturer reference

Applications

• Exterior brick walls and masonry façades

• Stone and concrete surfaces requiring waterproofing

• Patios, pathways, paving slabs, and walkways

• Driveways and exposed outdoor structures

• Prevention of damp, efflorescence, and frost-related spalling

• Suitable for domestic properties, commercial buildings, and trade projects

How to Use

• Ensure the surface is clean, dry, and free of dust, oil, algae, and loose material

• Stir well before use and apply in one generous coat using a brush or low-pressure sprayer

• Flood the surface to achieve a run-down of approximately 300mm

• Avoid over-application or pooling—allow the product to absorb evenly

• Apply only in dry weather with adequate ventilation

• Allow treated areas to dry fully, typically within 24 hours

• For highly porous surfaces, a second coat may be applied once the first has dried

Technical Details

• Product Type: Solvent-Based Masonry Water Seal

• Size: 5 Litre Tin

• Appearance: Clear

• Coverage: Approx. 3–8m² per litre depending on porosity (15–40m² per 5L)

• Protection Longevity: Up to 10 years

• Suitable Substrates: Brick, stone, concrete, masonry, render, paving

• Sika Code: 171270

• MPN: SKWATSEAL5

• Barcode: 5055047210580

FAQs

• Which surfaces is this suitable for?
  Ideal for brick, stone, concrete, render, and paving.

• Does it change the appearance of the surface?
  No, it dries clear and leaves the natural finish unchanged.

• How does Sika Water Seal work?
  It penetrates into porous materials to create a breathable, water-repellent barrier.

• Can it be applied in damp or wet conditions?
  No, apply only to clean, dry surfaces for best results.

• How long does it take to dry?
  Typically dries within 24 hours, depending on conditions.

• How many coats are required?
  Most surfaces need one coat; highly porous substrates may require a second.

• Is it suitable for indoor use?
  Only in well-ventilated areas; primarily intended for exterior use.

• How long does the protection last?
  Up to 10 years depending on substrate and exposure.

• How much area will 5 litres cover?
  Approximately 15–40m² depending on porosity.

Additional Note
Always read the Technical Datasheet before use to ensure correct application.
Please note: tins may dent during transit; this is not a reason for return.

"Always read the Technical Datasheet prior to first use to ensure you have the correct information and  product for your application"

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(Please note that tins may get dented in transit and this is not a reason for return please do not purchase tined products if this is an issue for yourself.)