Flood Test Balloon
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ACTFLEX 400 CLEAR Over-Tile Leak Repair Coating
$66.00
Innovative Tools 230mm FC Sheeting Puddle Flange Recess Kit
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Puddle Pro 90mm Puddle Flange
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STAIN-PROOF Premium Impregnating Sealer by Dry-Treat
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Actnow 100mm Rubber Puddle Flange
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Let's get your project sorted - start with a system below.
Stops a leaking tiled balcony or shower without lifting a tile. Three thin coats, no primer, up to five years.
ACTFLEX 400 CLEAR is a single-pack clear coating that goes straight over existing tiles. It is a temporary leak repair, not a waterproofing membrane. Fill the corners, put on three thin coats, and the leak is fixed for up to five years. 1 kg, 3 kg and 7 kg packs.
Where to use it
Why waterproofers buy it
Coverage
Over tiles at 0.2 mm DFT, diluted 2:1: 1 kg approx. 3 m², 3 kg approx. 9 m², 7 kg approx. 21 m². Over grout lines, mortar and concrete build to 0.5 mm DFT, approx. 0.9 to 1.1 kg/m².
Not for
Use as a waterproofing membrane, broken or loose tiles and grout (fix them first), crack repair (use ACTFLEX MS PRO or Soudal T-Rex), substrates over 4% moisture, or surfaces below 10°C. Keep rain off for 3 to 5 days after the final coat. Not slip-resistant as supplied. No product warranty.
All times at 25°C and 50% RH.
A temporary solution only - it fixes the leak for up to 5 years, it is not a waterproofing membrane and is never specified as one, and no product or performance warranty is offered. It does not fix broken, popping or loose tiles or loose grout; every defective tile and grout line is rectified first and all cracks repaired with ACTFLEX MS PRO or Soudal T-Rex before application. Never apply to a damp surface - substrate moisture must be below 4% and the surface completely dry, and never apply over water trapped beneath the tiles until the substrate has been aerated 3-5 days and confirmed dry. Do not apply below 10C surface temperature. Apply all coats within 48 hours of each other. No rain, washing or standing water on the surface for at least 3-5 days after the final coat. The film may turn cloudy white where water ponds or sits and some yellowing may occur within the service life. Not slip-resistant as supplied - broadcast ACTFLEX ANTISLIP to the designed slip rating. Complete an adhesion trial area on every substrate before full application. Classified a Hazardous Chemical and Dangerous Goods - causes skin and serious eye irritation, may cause respiratory irritation, and is toxic to aquatic life with long lasting effects.
Drag the handle to reveal the same surface once it is sealed.
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Over tiles, 1 kg covers about 3 m² for all three thin coats, mixed 2 parts product to 1 part water for brush or roller. Grout lines, joins, concrete and level surfaces use more than twice as much. Enter your area and surface and we will size the packs.
Estimate only, from the TDS practical yield. Usage changes with surface texture, grout profile and porosity. For big jobs, check quantities with our team.
Every figure here comes from the technical data sheet.
A leaking tiled balcony or bathroom, fixed without lifting a tile. No primer and no system build-up: three thin coats on a clean, sound, dry surface, corners filled first. Up to 5 years is a typical Forspec R&D value, not an accredited test.
It is not a waterproofing membrane and no class is claimed. It buys time: when a permanent fix is wanted, the tiled system is replaced with a FORSPEC membrane system. Fix loose tiles, grout and cracks first.
Three thin coats, never heavy builds. Minimum 0.2 mm dry film over the tiles and 0.5 mm over grout lines, joins and level surfaces. First coat by mohair roller into the grout lines, or trowel it on neat.
Two parts 400 CLEAR to one part clean water, for example 1kg with 0.5L. Use it neat for trowel work, with no other dilution. Diluted and over tiles, a 7kg pack covers about 21m² in three coats, for estimating only.
Recoat after 4 hours and finish all three coats within 48 hours. Keep rain, washing and standing water off it for at least 3 to 5 days, with full cure at 5 to 7 days, then foot traffic. Times at 25°C and 50% RH.
Step by step from the technical data sheet. Always read the full TDS before you start.
Inspect every surface: it must be stable, sound and structurally intact, free of voids, protrusions and movement
Replace broken, popping or loose tiles and remove all compromised, loose or damaged grout, replacing it with new grout, ACTFLEX MS PRO or Soudal T-Rex
Repair all cracks in concrete, render or screeds with ACTFLEX MS PRO or Soudal T-Rex before coating
Remove dust, grease, laitance and all loose, flaking or friable material with stiff brushes, scrapers and vacuum equipment
Treat moss and mould with household bleach diluted 1 part bleach to 2 parts water, rinse thoroughly with clean water and allow to dry completely
Remove grease with appropriate detergents, rinse the detergent off, final-rinse with clean water and dry
Where water is trapped beneath the tiles, aerate the substrate for a minimum of 3-5 days and confirm it is dry
Confirm the surface has stayed moisture-free for at least 3-5 days with moisture content below 4%
Fill and fillet all corners, wall and floor junctions, hob junctions and penetrations with ACTFLEX MS PRO or Soudal T-Rex, tooled smooth and cured tack free
Complete an adhesion trial area on the substrate before full application
Stir thoroughly before use to a uniform consistency
Use neat and undiluted for trowel application; for brush or roller dilute 2 parts ACTFLEX 400 CLEAR to 1 part clean water, mechanically stirred
Apply the first coat with a mohair roller for full wetting into grout lines and surface texture
Allow a minimum of 4 hours between coats at 25C and 50% RH and apply all coats within 48 hours
Build three thin, even coats to 0.2 mm dry film thickness over tiles and 0.5 mm over joins, grout lines, mortar, concrete and level surfaces
Where slip resistance is required, broadcast ACTFLEX ANTISLIP onto the wet second coat and lock it in with the third coat
Check for a continuous, pinhole-free film over every grout line and junction, fillets fully encapsulated and no ponded material
Keep rain, washing and standing water off the surface for at least 3-5 days; full cure is 5-7 days after the final coat
Every figure from the technical data sheet, in one table.
400 Clear is a temporary clear leak repair coating that goes directly over existing tiles, grout and brick, so a leaking bathroom, shower or balcony can be fixed without demolishing and retiling. It is not a waterproofing membrane and no membrane classification applies.
ACTFLEX 400 Clear fixes the leak for up to 5 years on a clean, sound, correctly prepared surface. It is UV resistant for exposed balconies and rooftops and keeps the original tile appearance with a semi-gloss finish. It is a temporary fix, not a waterproofing membrane.
Apply three thin coats: minimum 0.2 mm DFT over tiles and 0.5 mm DFT over grout lines, joins, mortar and concrete. Diluted 2:1 with water, 1 kg covers approximately 3 m² over tiles for all three coats. Recoat after a minimum of 4 hours, with all coats within 48 hours. Keep rain and water off for at least 3-5 days after the final coat. Full cure 5-7 days at 25°C, 50% RH.
Clean the existing tiles thoroughly to remove all dirt, grease, mould, and loose grout. Repair any cracked tiles first. The 400 Clear chemistry depends on a clean sound substrate - skipping prep leads to bond failure.
400 Clear is a remedial system providing up to 5 years of protection. For new-build AS3740-compliant waterproofing, use the under-tile ACTFLEX 906 WPU or 929 system instead. 400 Clear is the right choice when tile removal isn't viable.
Dispatched same or next business day from Roselands NSW. Questions? Call the team on (02) 8021 3517.
