Rayson SealForce AC10 is a one-part, water-based acrylic waterproofing membrane for exposed roofs, old roof tiles and external walls — applied cold, straight from the pail, by brush, roller or airless spray, and drying to a seamless, elastic, UV-resistant film.
SealForce AC10 is Rayson's one-part acrylic roof membrane: a modified acrylic dispersion in water, applied cold and straight from the pail, with no hardener to weigh and no heat or flame on the roof. It dries to a seamless, elastic film that stays exposed — resistant to UV, mould and fungus, and permeable to water vapour, so moisture in the substrate can escape through it.
It is used in two build-ups. As a roof coating, two coats at about 0.68 kg/m² each (0.5 mm wet film) go over a sound roof, old roof tiles or an external wall primed with SealForce AP05. As roof waterproofing, a polyester reinforcing fleece is bedded into the first coat and two more coats follow, for roofs with cracks, joints and many details. The dried film reaches at least 180% elongation and bridges cracks wider than 2 mm.
It is a membrane for surfaces that shed water. It must not be used where water ponds for long periods, and it is not a wearing surface for foot traffic: a flat roof that ponds or is walked on is a SealForce RC40 roof. Each coat has to stay dry until it has dried, so the work is planned around the weather.
Supplied by Epovex Coatings Sdn. Bhd., Company No. 202601042128 (1704223-A). The Malaysia launch is scheduled for 1 March 2027; confirm availability and lead time for your project. Installation through an authorised applicator in Johor, Kuala Lumpur or Penang introduced by Rayson, who quotes and warrants the workmanship, or by your own crew with Rayson’s application guidance.
Send an enquiry| Specification | Data sheet value |
|---|---|
| Coverage | Approximately 0.68 kg/m² per coat at 0.5 mm wet film; a 20 kg pail covers about 29 m² per coat — about 14 m² at two coats (roof coating) or about 9 m² at three coats (reinforced roof waterproofing), before allowances for porosity, surface profile and wastage |
| Mixing | One part, ready to use — applied directly from the pail |
| Drying and curing | Allow 4–8 hours between coats; where reinforcing fleece is bedded into the first coat, allow at least 2 hours before the second. Drying takes longer where air movement is restricted; protect each coat from rain, damp and condensation until dry |
| Pack sizes | 20 kg pail |
Rayson-authorised applicators in Johor, Kuala Lumpur and Penang install Rayson SealForce AC10 on these jobs; its layer is marked in each build-up. You can also order it direct and apply it yourself, with the step-by-step guide. Each page shows how the work runs, what to send for a quotation and what decides the price.
Order it direct, with a step-by-step guide
SealForce AC10 acrylic, RC40 polyurea and WB20 wet-area membrane, sold direct with the coverage and a step-by-step guide.
Flat roofs and decks that are walked on: SealForce RC40 polyurea. Toilets, under the tiles: SealForce WB20.
Quoted per orderJobs in Johor
Flat concrete, tiled and metal roofs: the cause found first, then a membrane over the whole roof.
Flat roofs that pond or are walked on: SealForce RC40 polyurea.
Quoted after inspectionRead the stain first: toilet above, roof, pipe or wall each need a different repair.
Under a roof: a roof membrane instead. A steady drip in any weather: a plumber first.
Quoted after inspectionDamp, peeling, mouldy walls: rain through the render, rising damp or a leak next door.
Water from a wet area behind the wall: that room is re-waterproofed instead.
Quoted after inspectionLarge flat and metal roofs in Johor’s industrial parks, coated without stopping production.
Metal and free-draining roofs: SealForce AC10, over an anti-corrosion primer on metal or AP05 on concrete.
Quoted after inspectionMachining halls, timber stores, packing and container loading, finishing lines and buyer showrooms in the furniture factories of Muar and Batu Pahat.
Timber and board stores: FloorGuard R50. Showroom: R50 under UraForce WB58, or an IFS finish. Finishing lines: after the chemical check.
Quoted after inspectionJobs in Kuala Lumpur and Selangor
Kuala Lumpur and Selangor ↗Flat roofs, porch roofs, tiled roofs and factory metal roofs in the Klang Valley: the leak traced, then the Rayson membrane that suits the roof.
Roofs that drain freely and old roof tiles: SealForce AC10 over AP05 primer. Metal roofs: AC10 over an anti-corrosion primer, with fleece at the laps.
Quoted after inspectionExposed surfaces that shed water: roofs in new construction and refurbishment, old roof tiles, external walls, and roofs crowded with penetrations, drains and roof lights. It is applied cold from the pail and left exposed. It is not for roofs where water ponds for long periods, or for surfaces people walk on.
As a roof coating, two coats at about 0.68 kg/m² each, 0.5 mm wet film per coat. As roof waterproofing, three coats with polyester reinforcing fleece bedded into the first. A 20 kg pail covers about 29 m² per coat, so about 14 m² at two coats or 9 m² at three. Porous or uneven surfaces and wastage take more.
AC10 is the one-part acrylic for roofs that drain freely and are not walked on: pitched and tiled roofs, external walls, and sound roofs that need an economical recoat. RC40 is the two-component aliphatic polyurea for flat roofs that pond, carry foot traffic or plant, or have to stay elastic from −35 °C to +80 °C. If water stands on the roof after rain, it is an RC40 roof.
Yes, once the roof itself is sound. Loose tiles are fixed, broken or missing ones replaced, and the roof pressure-washed and dried; AC10 then goes on in two coats. It renews and seals weathered tiles and lets them breathe, but it does not repair a leak: a roof that leaks at a broken tile, the ridge, a valley or a flashing needs that repair first.
Yes, external walls are one of its uses: the wall is cleaned, cracks and joints are repaired and reinforced, and AC10 is applied in two coats. In an HDB block or a condominium the external wall is common property, so the Town Council or the management corporation arranges the work; in a landed house it is the owner's.
Yes, on concrete, render, brick, stone and tiles: one coat of Rayson SealForce AP05 at about 0.1 to 0.3 kg/m², two on very porous surfaces, left until it has dried clear, about 30 minutes, before the first AC10 coat. Metal is abraded to a bright finish and takes an anti-corrosion metal primer instead, and a sound old coating gets a trial area first.
Dry weather. Each coat has to be protected from rain, damp and condensation until it has dried, with 4 to 8 hours between coats. Apply between +8 °C and +40 °C, at no more than 80% relative humidity, on a substrate at least 3 °C above the dew point and with no more than 6% moisture. In Singapore that means planning the coats around the rain, above all during the Northeast Monsoon from November to January.
No. It must not be used on roofs where water ponds for long periods, and it is not recommended for direct pedestrian traffic. Correct the falls so the roof drains, or use SealForce RC40, which is walkable and resists ponding water.
White, grey, green, clay brown, brick red, tile brown, red and black, with other colours on request. Applied colours are approximate to the chart, and the colour can shift slightly in direct sunlight without affecting how the membrane performs.
SealForce AC10 is part of Rayson's upcoming waterproofing release. Send the project details and your required date, and Rayson will confirm supply timing, colours, quantities and, where you need one, an applicator in the Rayson network before you commit.
Tell us what the surface is, where it is and what it has to withstand. Rayson replies with a system recommendation; for installation, the applicator for your area in Johor, Kuala Lumpur or Penang is introduced to quote the job.
Malaysia launch: 1 March 2027. Enquiries are welcome now; supply, site assessment and installation timing are confirmed for each project.