20L Paver Sealer - Invisible Breathable Paving Sealer (Silicone)

Intro

• Penetrating silane sealer for pavers. 40% active silane in an aromatic-free carrier.
• Reacts inside the pore. No film, no gloss, no colour change.
• Solvent carried, low odour. Not a Dangerous Good under the ADG Code. Combustible liquid, keep away from heat and ignition sources.

Coverage

• Dense concrete pavers: 5 to 8 m² per litre
• Standard clay and concrete pavers: 4 to 6 m² per litre
• Porous, aged or weathered pavers: 2 to 4 m² per litre

Coverage varies with paver type, age and porosity. Test a small area and measure your own rate before ordering for the full job.

Intended Use

• Reducing rainwater absorption in concrete and clay pavers
• Reducing moisture driven staining and discolouration
• Keeping paved areas drier between rain, so moss and algae have less to establish in
• Maintaining vapour permeability of the paving

Suitable for new and existing paving where the natural appearance must be kept.

Suitable Substrates

• Concrete pavers
• Clay and terracotta pavers
• Tumbled and textured pavers
• Sandstone and bluestone
• Exposed aggregate and pressed concrete

Not suitable for:

• Limestone, travertine and marble. These are calcareous and contain no silica for the silane to bond to. Use a modified siloxane made for calcareous stone.
• Permeable paving systems. These are designed to drain water through the surface. Sealing defeats the design and may breach a stormwater approval.
• Paving that already has a sealer on it. Strip it first.
• Paving over an active moisture source, or with a history of salt staining or efflorescence. Fix the moisture source first.

Functional Characteristics

• Penetrating, non film forming treatment
• Chemically bonds to the pore walls of the substrate
• Repels liquid water and reduces capillary uptake
• Allows water vapour to escape
• Keeps the natural colour and texture of the paver
• No surface film to peel, cloud or lift

What it does not do

1. No wet look, no gloss, no colour enhancement. The paving looks the same afterwards.
2. No oil, grease or tyre mark resistance. Silane repels water only. Oil will still stain.
3. Does not stabilise joint sand. Sand still washes out. That is a separate product.
4. Does not stop weeds in joints.
5. Does not stop water rising from below.

Application

Low pressure sprayer, brush or roller.

1. Clean thoroughly. Remove dirt, moss, oil, efflorescence and any existing sealer. Allow to dry completely.
2. Water bead test. Splash water on the surface. If it soaks in, the paving is ready. If it beads, there is a sealer present and it has to come off first.
3. Mask glass, glazed tile, powder coated aluminium, painted surfaces and anything you do not want treated. Silane bonds permanently to glass. Wet down plants before and after.
4. Apply evenly and liberally until the surface stops taking it in.
5. Sweep excess out of joints and off any low porosity areas before it dries.
6. Highly porous or aged paving may need a second coat. Apply wet on wet within 15 minutes of the first.

Conditions

• Substrate dry. Minimum 28 days cure on new concrete pavers.
• Apply between 5°C and 30°C. Not in direct sun on a hot surface.
• No rain forecast for 6 hours.
• Foot traffic after 4 to 6 hours. Vehicle traffic after 24 hours. Full cure 5 to 7 days.

Coverage and cure times are guidance. Performance depends on substrate condition and correct application.