Description
PureSeal BacClear Pro is our fully approved and licensed 50% BAC biocide. The HSE has registered it on the COPR database (No. 10878) as a surface biocide. In fact, it remains the only BAC50 (50%) product licensed by the HSE for use on all surface types.
Professional Use Only
This product is licensed for professional use only. Therefore, you must hold the appropriate training and qualifications required by the HSE before using professional-use biocides. As the end user, you are responsible for ensuring you meet all relevant legal requirements.Uses
PureSeal BacClear Pro is a professional-grade biocide that rapidly targets biological growth on exterior surfaces. You can use it on roofs, render, paving, and other hard surfaces. In most cases, a single application with a brush or sprayer will break the reproductive cycle of surface contaminants such as algae, moss, mould, and lichen. When using any biocide, you should consider several factors before selecting a dilution ratio. For example, environmental conditions, temperature, surface type, and surrounding vegetation can all affect performance and longevity. As a general rule, porous surfaces tend to absorb biocides more effectively than non-porous surfaces. On non-porous materials such as coated cladding or porcelain, a biocide may not provide the same long-term protection. However, it will still deliver a rapid kill, allowing the biofilm to weather away naturally over time.Precautions
You should also consider pets and children before applying any biocide treatment. If they have access to the treated area, we recommend allowing the product to remain on the surface for at least one hour after application. The product may dry during this period, which will not affect performance. After one hour, rinse the treated area thoroughly with clean water. This step removes any remaining residues and helps protect pets, children, and other surface users.How to Use
For general applications, dilute BacClear Pro at a ratio of 1 part biocide to 20 parts water when treating render, roof slates, or roof tiles following scraping. For ground surfaces, dilute the product at a ratio of 1 part biocide to 30 parts water. Once diluted, apply the solution at a coverage rate of approximately 4m² per litre. For more specific application rates and dilution guidance, please refer to the dilution chart below.Safe for all surfaces including:
- Block paving
- Natural stone
- Tarmac
- Render
- Roofs
- & much more
The dilution ratios in the chart below are approximate and will depend on the surface’s porosity and condition. Apply BacClear Pro onto the surface and leave it to self-cleanse.























Artificial and Sports Surfaces
Awnings / Canopies / Gazebos
Block Paving
Brickwork
Composite Surfaces
Decking / Timber
Granite
Imprinted Concrete
Internal Masonry
Limestone
Marble
Metal Cladding
Polished or Honed Stone
Porcelain
Render
Resin Bond
Road and Rail Signs
Roof Tiles / Slates
Sandstone
Slate
Solar Panels and Glass
Stone Sills and Pier Caps
Tarmac and Asphalt
Gutters & UPVC
Acid Damage
Biofilm
Bitumen
Blood
Carbon
Concrete / Grout / Mortar
Copper Oxide
Efflorescence
Egg
Failed Sealer
Fire Damage
Fuel / Oil
Graffiti
Grease / Fat / Cooking Oil
Lawn Fertiliser
Lead Carbonate
Lead Oxide
Paint Splashes
Rust
Tar & Glue
Tannin Removers
Traffic Film Removers
Trapped Moisture / Sealer Repairs
Urine Neutralisers
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