£7.00£200.00 inc. VAT


A water based, siliconate resin emulsion brick sealer that imparts excellent water repellency to many external concrete, masonry and brick surfaces


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“Great product, does what it states, water just beads off my brick work and I no longer have an issue with patchy white salts marks, Very Happy!”
Jamie Johns

5 star rating

“Product works well, received my order next day”
Tom P

5 star rating

Universeal Brick-Seal Brick Sealer


Usage Guidelines

Coverage: 5-10m2 per litre per coat
Coverage offered as guidance. Will vary depending on surface porosity, texture and application process.
Drying Time: 45-60 mins
Applications/Coats: 2 Coats
Application Method: Sprayer / Mop / Brush
Dilution: Undiluted


Download a PDF Technical Application Guide


Universeal Brick-Seal is a water-based, siliconate resin emulsion. Brick-Seal serves as a high-quality, general-purpose treatment to impart excellent water repellency and stain resistance to many external concrete, natural stone and masonry surfaces.

Universeal Brick-Seal significantly reduces the capillary water absorption of treated surfaces, whilst it is a high-performance brick sealer, it doesn’t clog the pores or capillaries; allowing the surface material the ability to “breathe” and transfer moisture vapour.

Special Features

  • Rapid development of excellent water repellency
  • Significantly reduces efflorescence, moss and algae growth
  • Reduced water ingress and surface dampness
  • Long-lasting protection


  1. Due to the nature of this product, it is very important to avoid skin and eye contact, and to not inhale any mist/vapour. ALWAYS WEAR APPROPRIATE PPE DURING APPLICATION.
  2. Before application, the surface must be completely clean and dry. Application methods include a low-pressure sprayer, natural fibre brush or mop (we do not recommend using a roller).
  3. Apply Brick-Seal, to saturation, two coats “wet on wet” are needed to ensure complete coverage. DO NOT DILUTE. Surface dry after 45-60 minutes. If rain is forecast or starts, then stop treatment immediately and cover the freshly impregnated areas, the surface is required to stay completely dry for the first 6 hours after application. Allow 24 hours curing time for the product to achieve best performance.

Please Note:

Always try product in an inconspicuous area on-site prior to use. Surfaces which are not to be sealed should be protected with masking material. Any overspray or spills must be rinsed with clean water to avoid white spots/staining. If white spots appear, do not allow to dry; quickly wash down the affected area with clean water and agitate with a stiff brush.


We recommend you clean sealed areas with No More Algae Cleaner, our safe & environmentally sensible cleaner. Do not use harsh or abrasive cleaning agents as this can have a negative effect on the treated surface.


5-10m2 per litre per coat
Coverage is offered as guidance. Will vary depending on surface porosity, texture and application process. Check the surface after application to ensure full effectiveness of repellent.

Storage Information:

Product lifespan symbolsProduct shelf life is 12 months from production date (shown on cap) when unopened and stored at room temperature. After opening, use within 3 months.

External Chemicals: Handling

Please note, our outdoor chemicals must always be handled with care. Upon receipt of your goods, you should open the packaging in a safe, suitable outdoor environment. Despite our best efforts with robust, layered packaging, there is always a small risk that damage or leakage could occur during transit. Our chemicals have the potential to damage sensitive surfaces if left unattended and we do not recommend that you store them indoors unless specifically indicated.


Do not get in eyes, on skin, or on clothing.
Wear protective gloves, eye-wear and face mask where needed.
IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
IF ON SKIN: Wash with plenty of soap and water.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Product SDS sheet available upon request.

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Additional information

Weight 6 kg
Dimensions 20 × 18 × 30 cm
Size Option:

150ml Tester, 5 Litre, 25 Litre

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