
BeforeAfterWe remove water scale, oil deposits, rust, sludge and algae from cooling towers, chillers, boilers, heat exchangers and production machinery using KCA chemicals. Clients pay only for the chemicals; on-site application by our technicians carries no service fee and can be scheduled at night or on holidays to avoid production disruption.
*Complimentary site survey within Greater Jakarta.
BeforeAfter
Drag to compare the chiller fan cleaning
PT Sinar Karya Sejahtera (SKS) was founded in January 2008. Our head office and showroom are in Kapuk, Jakarta, with a branch office in Cikarang close to the Bekasi and Karawang industrial estates.
SKS is the official sole distributor of KCA chemical maintenance products in Indonesia. Our service goes beyond supplying chemicals. Our technicians survey your site, inspect the equipment, calculate the exact chemical requirement and carry out the cleaning to completion, with no separate service fee. We then help maintain your equipment through a scheduled water treatment program.
Most of our clients are manufacturing companies. We also serve hotels and hospitals whose cooling systems and utilities must operate continuously.
“SKS focuses on cleaning and maintaining machinery with the right chemicals, so your equipment performs at its best every day.”
Equipment that operates with water or oil accumulates internal deposits over time, including water scale, oil deposits, sludge, rust and algae. These deposits impede heat transfer, causing higher operating temperatures, increased power consumption and a greater risk of breakdown. We dissolve them with chemicals selected for the specific problem.

| Chemical type | Removes | Typical use |
|---|---|---|
| Acid-based + corrosion inhibitor | Water scale (lime, calcium, magnesium), rust, sludge, algae | Cooling towers, condensers, boilers, water side of heat exchangers |
| Alkaline high pH | Water-soluble oil and grease deposits | Oil coolers, moulds, machine parts |
| Solvent-based non water-based | Stubborn oil deposits on components that must not contact water | Gear boxes, oil side of heat exchangers, electrical parts |
Our acid cleaners contain a corrosion inhibitor, so they dissolve scale without attacking the metal. The method depends on the equipment: circulation flushing, dip tank soaking or spraying. Chemicals are supplied in 25 kg / 25 L pails.
“We choose the chemical for the case at hand, not one product for every problem.”
Once the equipment is clean, the next step is to stop scale, rust and algae from coming back quickly. We do this with water treatment chemicals dosed according to an analysis of your site's water.
The water is exposed to air, making it the most prone to scale, corrosion and algae. We use a scale & corrosion inhibitor plus a biocide for algae control.
The focus is preventing corrosion, sludge and biological growth inside the loop. We use a corrosion inhibitor designed for closed systems.
Technician visits to dose chemicals and clean the area around the unit.
Water analysis in our lab with regularly calibrated Hanna Instruments meters: pH, conductivity, total hardness, silica, iron (Fe), sodium, magnesium and other minerals.
Cleaned surfaces need protection so they do not rust again quickly. Coating helps the cleaning results last longer.


Select a card to see which parts we clean and coat.
SKS is the official sole distributor of KCA. Every product comes with an MSDS and labels that meet ISO standards. Select a product to view its full specifications. To request a TDS or MSDS in PDF format, please contact us via WhatsApp.
Degreaser for grease, oil, nicotine, dust and dirt. KCA-201 emulsifies and breaks the bond of oil and grease so the soil can be dissolved and rinsed away with water.
Workshop floors, engine rooms, generator rooms and ship decks.
25 L pail

Formulated to strip all types of industrial paint. Non-corrosive, safe on metal and free of toxic phenol.
Hotels, workshops, industry, fabrication, aeronautics, marine and other heavy industries.
Caution: Use in a well-ventilated area with gloves and eye protection. Rinse skin contact with plenty of water.
25 kg pail




A coil cleaner that combines cleaning agents with an inhibitor so its organic acids are non-corrosive. Works immediately without etching metal.
Evaporators, coils and AHUs. Also surfaces covered in rust, water scale, lime and mineral deposits.
25 kg / 25 L pail




Quickly dissolves organic blockages such as paper, tissue, cloth, soap, cotton, rice, sanitary pads, bones and other organic matter.
Sinks, WCs and manholes.
5 L gallon


All-purpose cleaner and light degreaser that does not strip or etch floor or vehicle paint and leaves no residue. Excellent for removing grease, oil and dirt from dishes, pots, glasses and silver-plated items.
Floors, kitchenware and silver-plated items.
25 L pail
Removes grease, oil, dust and dirt from dynamos and electric motors without full disassembly.
Motors, coils, contactors, generators, AC and compressor motors, turbines, radar equipment and other sensitive equipment that must not be cleaned with alcohol or water.
25 L pail
Water-based solution that removes rust and stains from metal surfaces, leaving them clean and ready for painting or further treatment.
Drilling and refineries, heavy industry on land, sea and air: exhaust pipes, boilers, steel tanks, steel pipes and other metal equipment.
25 kg pail
Water-soluble oil-based cutting coolant with corrosion inhibitors and biocide/fungicide for lubrication and cooling. For machining ferrous and non-ferrous metals: milling, turning, drilling, cutting, grinding and sawing.
Milling, turning, drilling, cutting, grinding and sawing machines.
25 L pail

High-concentration cleaner, free of acid and alkali, for vinyl, plastic, glass, oily concrete floors and heavy parts such as engine components and engine blocks. Widely used for degreasing oil tanks and dusty or oily surfaces.
Workshop floors, oil coolers, pumps, machine parts and engine blocks.
25 L pail
Multi-purpose solvent that dissolves light soil, dust, grease, oil and adhesive residue.
Machine parts and metal surfaces contaminated with oil and grease.
25 kg / 25 L pail


Dual-function wire rope lubricant with molybdenum disulfide that lubricates and forms a protective coating. High-grade bituminous base with extreme-pressure, anti-wear, anti-oxidation, anti-rust and anti-corrosion additives. Penetrates the rope and dries to a tough film in 20–30 minutes so sand and dust do not stick.
Wire ropes and steel cables, chains, derricks, cranes, hoist ropes, guy wiring and cargo chains.
20 kg pail
Controls corrosion and scale in cooling tower systems.
Cooling towers and open recirculating cooling water systems.
25 kg / 25 L pail


Biocide that controls bacteria, slime and algae. Active ingredient: quaternary ammonium chloride (water-based).
Cooling towers, swimming pools, and as a disinfectant for locker rooms and pool surroundings.
25 kg / 25 L pail
Protects closed cooling systems from corrosion caused by oxygen and dissolved minerals, and prevents scale inside the system.
Radiators, chillers, diesel engine cooling. Keeps heat exchangers, AHUs and valves corrosion-free.
25 kg / 25 L pail
Dissolves rust, magnesium and calcium scale, and water scale.
Descaling of heat exchangers, AHU tubing, evaporating equipment, inside heating & cooling coils, coolers and condensers.
25 kg pail



Removes lime, calcium, magnesium and water scale, cement, soap residue, algae and rust from metal and copper surfaces.
Descaling of bundle tube condensers, cooling towers, stainless steel evaporating equipment, boiler water systems, condensers.
Caution: Not for aluminium or galvanised steel.
25 kg / 25 L pail





For small to medium hot water systems. Reduces hardness by converting scale-forming minerals so they stay soft and non-adherent and can be removed through regular blow-down. Contains an oxygen scavenger that removes dissolved oxygen to prevent corrosion.
All hot water systems. Not for systems in direct contact with food (not food grade).
25 L pail
Heat-resistant paint for metal surfaces operating at high temperatures.
Genset exhausts, vehicle exhausts, heaters, chimneys and hot components in industrial, automotive and marine use.
5 L gallon · silver aluminium and black

Epoxy coating that forms a hard, durable layer against rust and corrosion. Well suited to lining water tanks.
Water tanks, fuel tanks, immersed or chemical-exposed surfaces.
1 kit = 4 kg base + 1 kg hardener


High-gloss alkyd paint that protects surfaces from rust and direct sunlight.
Metal, wood, industrial equipment and steel structures.
5 kg gallon


High-quality fast-drying solvent formulated to thin alkyd urethane-based paints, including KCA-1178.
Thinner for KCA-1178 Alkyd Synthetic Enamel Paint.
Caution: Flammable. Use with adequate ventilation and keep away from ignition sources.
5 L gallon or 20 L pail
Two-component polyurethane/polymer coating (acrylic polyol + isocyanate) forming an elastic, tough, abrasion- and scratch-resistant film.
Pharmaceutical, food & beverage and hospital facilities, WWTP tanks, fibre basins, carbon filter and resin tanks. For floors, walls, ceilings, metal, masonry and wood. Coverage: 1 kg + ½ L KCA-1581 thinner ≈ 6 m² @ 50–70 microns.
Contact us

Solvent thinner formulated for polyurethane-based paints such as KCA-1580 Polycoat.
Thinner for KCA-1580 Polycoat.
5 L gallon or 20 L pail
Two-component high-gloss epoxy self-levelling finish that forms a thick, tough, anti-slip coating. Available in many colours; resistant to impact, abrasion, friction and chemicals.
Floors and walls of warehouses, assembly plants, parking decks, workshops, food processing plants and WWTP tanks. Coverage: 1 kg ≈ 1 m² at 1,000 microns.
1 kit = 3.5 kg base + 1.5 kg hardener


Solvent thinner formulated for epoxy-based paints such as KCA-1175 Epoxy Coating and KCA-1599 Corr-Pro.
Thinner for KCA-1175 and KCA-1599.
5 L gallon or 20 L pail
Treats rust in three stages: neutralises rust into a magnetite (Fe₃O₄) layer, forms an anti-corrosion barrier, and acts as an undercoat ready for primer.
Rusted metal surfaces before painting.
5 L gallon
Two-component epoxy polyamide anti-corrosion primer with rust-inhibiting pigment.
Primer for iron and steel. Filler on cement render, concrete, steel, wood and masonry.
1 kit = 4 kg base + 1 kg hardener

Clear two-component epoxy that acts as both a sealer/base coat and a bonding layer on concrete.
Concrete waterproofing, bonding primer for floor paint, ceramics and PE plastic (thinner 1:½), and wood-to-wood adhesive (no thinner).
1 kit = 2 kg base + 1 kg hardener




Tough, flexible insulating varnish that protects exposed terminals and wiring. Forms a coating resistant to dust, dirt, salt water, acids and chemicals, with high dielectric strength and heat resistance.
Field coils, exposed metal, bus bars, electrical windings, frayed insulation, commutator ends, collector rings, motors and transformer armatures.
Aerosol, 12 cans per box
Dry lubricant containing molybdenum disulfide that performs under pressures up to 20,000 psi. Ideal for assembly work and conveyor lines.
Automotive and industrial gaskets, screw threads, hinges, gears, shafts, metal belts, conveyor belts and drive chains. Also when assembling or dismantling motors, machines, pumps, compressors and valves.
Aerosol, 12 cans per box
Formulated to coat V-belts to prevent slipping and squealing and stop belts slipping off pulleys. Recommended every 60 days as part of preventive maintenance.
Flat industrial belts and V-belts on transmissions, water pumps, fans, generators, power steering, AC units and AHUs.
Aerosol, 12 cans per box

Molybdenum disulfide lubricant that forms a film resistant to fast, heavy friction. Ideal for metal-to-metal contact under high pressure up to 20,000 psi.
Bearings, open gears, slings, elevator cables, tractors, conveyor rollers, construction machinery and trucks.
Aerosol, 12 cans per box
Multi-purpose silicone lubricant for hinges, locks, windows, doors, gates, drawers, padlocks, wheels and zips. Stops squeaks, prevents locks and hinges from seizing or rusting, and protects and shines leather, chrome, steel, vinyl and nylon.
Fan belts, metal-to-metal and metal-to-rubber contact, hinges, cabins, rubber and plastic parts, ignition locks, and moisture protection for electronic circuits.
Aerosol, 12 cans per box
Forms a film that prevents weld spatter from sticking during welding.
All welding work.
Aerosol, 12 cans per box


Locates cracks and flaws in metal, ceramic, porcelain, plastic and other solids accurately and at low cost, without special equipment and without damaging the test piece. Consists of KCA-1750C Cleaner, KCA-1750P Penetrant and KCA-1750D Developer.
Leak testing, welds, forgings and castings.
Aerosol, 12 cans per box
Solvent-lubricant blend with strong penetrating power to free seized and rusted components. Sprays directly and creeps into hard-to-reach places.
Bearings, pipes, pumps, hinges, valves, screws, pulleys, shafts, conveyor rollers and other seized parts.
Aerosol, 12 cans per box

Aerosol cleaner for grease, oil, dust, dirt and moisture. Non-flammable, evaporates quickly without residue, non-conductive, and does not damage paint, coatings or component materials.
Electrical components, panels, circuits, audio-video equipment, telecoms, computer instruments, motors and switches.
Aerosol, 12 cans per box
Loosens rust on nuts, bolts and screws, lubricates hard-to-reach points, leaves a clear anti-rust film and prevents moisture damage.
Nuts, bolts, screws, hinges, locks, lathes, drills, electronics, switches and sockets.
Aerosol, 12 cans per box
High-pressure, fast-drying cleaner/degreaser that removes dirt, oil and grease thoroughly without dismantling, even in hard-to-reach spots. A replacement for solvents that are hazardous to users and the environment.
Bearings, compressors, spare parts, pumps, dynamos, coils, chains, relays, solenoids and switches.
Aerosol, 12 cans per box

Leaves a clear, amber, non-tacky film. Rust protection for moulds, metal stampings, spare parts and tools in long-term storage or harsh weather.
Marine equipment, boat trailers, moulds/dies, spare parts, electric motors, machinery and metal surfaces.
Aerosol 12 cans per box · 5 L gallon
We check the equipment condition, type of deposits and system volume. Free within Greater Jakarta.
We calculate the chemical quantity and job duration, and tell you honestly.
If needed, we prove the chemical and method work on your equipment before you buy.
Clients purchase only the chemicals. Work is scheduled during shutdowns: nights, weekends or public holidays.
We hand over photo documentation and job notes. If the result is not yet satisfactory, we repeat the work until it is complete.
Routine water treatment and technical support, including a 24-hour emergency line.




We can demonstrate our chemicals and methods first against your company's standards.
If the cleaning result is not satisfactory, we repeat the work.
Products can be returned if specs differ from the tested sample.
Aerosol products can be exchanged if they jam with content still inside.
Every product has an MSDS and labels that meet ISO standards.
Clients purchase only the chemicals. Our technicians' work is not billed separately, and site surveys within Greater Jakarta are complimentary.
You buy directly from KCA's sole distributor, so products and technical support come from one source.
We protect the KCA name. We tell you how much chemical you really need, with no overpromising.
Equipment problems directly affect output and cost, so we follow up every client request promptly.
We routinely work at night, on weekends and on public holidays while your machines are down.
Every job ends with a before–after report.
“We are committed to being your long-term partner by consistently maintaining the quality of our work.”
Drag the slider on each photo to compare the condition before and after the work.

BeforeAfter
BeforeAfter
BeforeAfter
BeforeAfter
BeforeAfter
BeforeAfter
BeforeAfter
BeforeAfter
BeforeAfterThere is no service fee. Clients purchase only the KCA chemicals required, and our technicians' work is not billed separately. Site surveys within Greater Jakarta are also complimentary.
It depends on the unit size and how thick the scale is. After the survey we give you a clear time estimate, and the work can be scheduled around your shutdown.
Our cleaning chemicals contain corrosion inhibitors, so scale and rust dissolve without attacking the metal. For sensitive materials such as aluminium and galvanised steel, we select a suitable product.
Yes. We routinely work outside production hours so that your plant does not incur additional downtime.
Yes. We can run a demo or sample test at your site to prove the results.
In a routine program our technicians visit twice a week for chemical dosing, and the water is analysed monthly. The frequency can be adjusted to your water conditions.
Our main area is Greater Jakarta, including Bekasi, Cikarang and Karawang. We can serve other locations with additional transport and accommodation costs.
Yes. KCA chemicals are available in 25 kg / 25 L pails. Technical data for each product is in the Products section.
Free site surveys across Greater Jakarta. We also serve other locations with additional transport and accommodation costs.