Speedsil 2000 (Concentrate) is a high-performance injection fluid used to install a chemical damp proof course (DPC) in masonry. Suitable for all types of pressure injection DPC work, it is a water-based system designed to deliver solvent-based performance while remaining odourless, non-flammable and non-staining.

Key Features

• Water based with solvent performance.
• Out performs siliconates and micros.
• Non-corrosive to equipment.
• Diluted material stable for 6 months.
• Low alkalinity for safer working conditions.
• Fast cure to help prevent dissipation.
• Non-staining or salting.
• Odourless and non-flammable.

Typical Applications

• Injecting a chemical DPC to help control rising damp in masonry walls.
• Pressure injection DPC work where an aqueous (water-based) solution is preferred.

How It Works

When mixed with water, Speedsil 2000 forms an aqueous solution designed for chemical DPC use. Based on a multi-functional siloxane, it cross-links after application to waterproof a wide range of masonry materials. It forms a true solution in water for maximum penetration and works by lining the pores/capillaries of the substrate to create a barrier against rising damp.

Preparation & Application

• External prep: Remove porous/damaged plinths and cut external rendering back above the proposed DPC line. Lower external ground levels where possible, and protect plants/paths/glass from spills (wipe up immediately).
• Internal prep: Remove skirtings (treat and reuse if sound). Remove plaster to at least 1m high or 300mm above the last evidence of damp/salts (whichever is higher). Remove timber fixing grounds and rake out mortar beds 10–15mm ready for replastering.

Drilling Guidance (Brickwork)

• Select the injection line not less than 150mm above external ground level. Internally, aim as close as possible to floor level on solid floors; with suspended timber floors, inject below joists/wall plates where possible.
• Drill two 10–14mm holes at a slight downward angle to approx 2/3 depth of the brick (or through to terminate in a mortar bed where mortar joint injection is required).
• Hole spacing: do not exceed 170mm between holes.
• 115mm walls: drill from one side only.
• 225mm walls: drill from each side, or drill ~75mm, inject, then drill a further ~100mm and inject again.

Injection, Mixing & Finishing

• Walls over 225mm: drill in a stepped manner (preferably from both sides). Cavity walls: treat each leaf as a separate wall. For very damp walls, consider two rows of holes.
• Injection pressure: inject at low pressure 5–50 psi (vary to suit site conditions). Inject until fluid begins to be visible in mortar beds, ensuring sufficient fluid enters the wall.
• Mixing: clean the injection pump thoroughly before use. Always add Speedsil 2000 to the water. Dilute 1 part Speedsil 2000 with 4 parts clean water (by volume). 5L concentrate makes 25L ready-to-use product.
• Finishing: plug external DPC holes with strong cement/sand mortar or plastic plugs. Leave walls as long as possible before replastering.

Coverage

Coverage depends on masonry type and thickness. A useful rule of thumb is 2.5L of fluid per 1 metre of 230mm (9") thick wall.

Aftercare (Replastering & Decoration)

• Replastering must be carried out in accordance with the Biokil Crown Replastering Specification.
• After replastering, decorations should be regarded as temporary for 9–12 months. Use a non-vinyl based emulsion during this period and avoid vinyl paints and woodchip-type wallpapers.
• Maintain good air circulation around damp-proofed, replastered walls.

Cleaning

• Clean spills/runs/residue while wet using detergent and water.
• Dried residue may require methylated spirits.
• Always clean equipment immediately after use with detergent and water.

Storage & Shelf Life

• Store in dry conditions.
• Diluted material may be kept for 6 months.
• Undiluted Speedsil 2000 may be stored for up to 2 years.

Safety

• Read the product label and MSDS before use.
• Concentrate: risk of serious eye damage — wear eye/face protection when diluting (diluted product is not classified).
• If product contacts eyes, rinse immediately with plenty of water and seek medical advice.
• Keep out of reach of children.

Specifications