Sprayed tank / containment lining
- Abrasive-blast the concrete or grit-blast the steel
- Fill blowholes and prime with the specified Rayson primer
- Spray-apply SealForce SP200 to the specified thickness
- Post-cure before returning to service
Rayson SealForce · Polyurea
Rayson SealForce SP200
Rayson SealForce SP200 is a hot spray-applied, 100% solids, rapid-curing pure polyurea membrane that forms a seamless, chemically resistant waterproof and protective lining on concrete and steel.
ConcreteExposed structuresWet areas TDS RY-TDS-1103
Best for
Best for tanks, below-grade structures, water containment, marine environments and roofs that need a seamless, fast-return, chemically resistant polyurea lining.
SealForce SP200 is Rayson's spray-grade pure polyurea: a two-component, 100% solids system that gels in seconds and builds a seamless, monolithic membrane over concrete and steel — including across field joints. It is placed by heated plural-component spray equipment and is put into light service within minutes.
The cured film combines high tensile strength, strong elongation and excellent impact, abrasion and puncture resistance with very low permeability, so it both waterproofs and protects — significantly extending the durability of the reinforced concrete and steel it covers. VOC content is very low.
It is specified for below-grade tanking, tank and waste-water linings, marine structures, roofs, containment and water features, and is suitable for potable-water contact when the substrate is primed with the specified potable-grade primer. As an aromatic polyurea it may discolour under UV, with no effect on performance.
In Malaysia
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 enquiryKey benefits
- Seamless, monolithic pure polyurea — including across field joints
- Rapid cure — light service within about an hour
- Excellent chemical resistance, impact, abrasion and puncture resistance
- Very low permeability and very low VOC
- Suitable for potable water with the specified primer
Recommended uses
- Below-grade waterproofing and tanking
- Tank coating and waste-water tank lining
- Water containment, landscape water features and waterparks
- Secondary containment linings
- Marine and splash-zone structures
- Roof waterproofing where a sprayed seamless membrane is specified
Application
- Hot airless spray (plural-component)
| Specification | Data sheet value |
|---|---|
| Coverage | 1.0–3.0 litres/m² depending on specification; normal minimum 1.5 litres/m² (1.5 mm DFT external, 2.5–3.0 mm for water-retaining structures) |
| Mixing | Two components metered and mixed in the heated spray gun at a 1:1 volume ratio; block and hose temperature 60–70 °C, spray pressure 2000–2500 psi; do not dilute |
| Drying and curing | Gel time 5–10 seconds; walkable ~2 minutes; light traffic 15–20 minutes; post-cure 24 hours |
| Pack sizes | Part A 22.5 kg or 225 kg; Part B 21 kg or 212 kg |
Typical systems
Limitations
- Applied only by specialist applicators with heated plural-component spray equipment
- Must be applied over the specified primer — never diluted
- Aromatic polyurea — discolours under UV (physical properties unaffected)
- Steel must be coated before flash-rust reforms after blasting
- Potable-water use requires the specified potable-grade primer
Not suitable for
- Hand application by roller or brush
- Application by non-specialist applicators without plural-component spray plant
- UV-critical exposed finishes without a stable topcoat
- Application over unprimed or contaminated substrates
Used with
Jobs and industries
Jobs that use Rayson SealForce SP200
Rayson-authorised applicators in Johor, Kuala Lumpur and Penang install Rayson SealForce SP200 on these jobs and in these industries; its layer is marked in each build-up. Each page shows how the work runs, what to send for a quotation and what decides the price.
Waterproofing systems, applied by an applicator or bought direct
Waterproofing in Malaysia ↗ 01 Rayson system
Polyurea waterproofing
SealForce polyureas: RC40 and RC30 rolled on for roofs, decks and planters, SP200 and the potable-grade SP210 hot-sprayed for tanks, containment and large roofs.
- SealForce RC40 polyurea, two layers, UV-stable and walkable
- The primer its data sheet names for the surface
- Roof or deck slab, cracks repaired, details reinforced
Decks, planters and car park decks: SealForce RC30, rolled on. Tanks, containment and large roofs: SealForce SP200, or the potable-grade SP210, hot-sprayed.
Quoted after inspection 02 Rayson system
Cementitious waterproofing
SealForce RW1 waterproof cement for slurry coats, renders and screeds, with SealForce WB20 as the membrane where cracks move: no bitumen sheets, and the honest line where cement stops.
- Tiles, bedded and grouted with SealForce RW1
- Screed with RW1 in place of the mixing water
- SealForce WB20, two coats, where the room needs a membrane
- Concrete or render, cleaned, roughened and repaired
Walls and floors with no membrane: a slurry coat of RW1, cement and sand on the old concrete, then the render or screed with RW1. Basements and tanks: SealForce SP200, sprayed.
Quoted after inspectionJobs in Johor
03 Rayson system
Factory and warehouse roof waterproofing
Large flat and metal roofs in Johor’s industrial parks, coated without stopping production.
- SealForce RC40 polyurea on exposed concrete roofs
- Primer to the data sheet
- Roof slab, laps, gutters and penetrations detailed
Metal and free-draining roofs: SealForce AC10, over an anti-corrosion primer on metal or AP05 on concrete. Hot metal and fibre-cement roofs, old bitumen: SealForce RC30. Large roofs: SealForce SP200, sprayed.
Quoted after inspectionBy industry, across Malaysia
Industries we cover ↗ 04 Rayson system
Food and beverage factory floors
Hot washdown, wet process and dry store floors for food and beverage plants, with coves and drains detailed.
- PurScreed PC70 PU-cement screed, 1.5–3 mm
- Concrete slab, prepared, coves and drains detailed
Dry stores and packing: FloorGuard R50 or LevelShield SL120 over PrimeBond E20. Walls: UraForce WB58. Water tanks and effluent pits: SealForce SP210 or SP200, sprayed.
Quoted after inspection The practical details
Rayson SealForce SP200: questions people ask
Can SealForce SP200 be applied without spray equipment?
No. It is a fast-gelling pure polyurea that must be placed by specialist applicators using heated, high-pressure plural-component spray equipment. For hand-applied waterproofing, use the roller-grade SealForce RC30 or RC40.
How soon can the structure return to service?
It gels in seconds and is walkable in about two minutes, taking light traffic in 15–20 minutes, with a 24-hour post-cure — one of the fastest returns to service of any waterproofing membrane.
Is it safe for drinking-water tanks?
It is suitable for potable-water contact when the substrate is primed with the specified potable-grade primer. Confirm the full potable system with our technical team for your project.
Will it change colour outdoors?
As an aromatic polyurea it can discolour under prolonged UV. This is cosmetic only and does not affect the waterproofing or physical performance; a UV-stable topcoat can be specified where appearance matters.
What thickness is applied?
Typically 1.5 mm dry film for external waterproofing and 2.5–3.0 mm for water-retaining structures, from a coverage of about 1.5 litres/m² upward depending on the specification.
Start a conversation / ↗
Send the job, or ask for materials
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.