Authorised Distributor of RBS 25 & RBS 35 since 2005
The Sandpipers Pte. Ltd. has been an authorised distributor of RBS 25 Concentrate and RBS 35 Concentrate since 2005, exporting from Singapore to customers across the region. Manufactured in Belgium by Chemical Products R. Borghgraef S.A., these concentrated alkaline cleaners remove grease, oils, proteins and mineral residues, and rinse away completely without leaving any trace or film.
For manual and ultrasonic cleaning of glassware, optics, metal parts and electronics. Just 20 ml per litre of water.
RBS 25 and RBS 35 are designed for manual cleaning and ultrasonic baths, and for soaking. Both work at the same low dilution of 20 ml per litre of water, ideally at 50 °C.
Items are wetted or soaked in the RBS solution, which penetrates the soil. A brush or sponge then lifts and disperses it, followed by a rinse.
Best for: small batches and medium-sized items such as flasks, beakers, measuring cylinders and containers
Ultrasonic waves add mechanical action to the RBS solution. Faster and easier to control than manual cleaning, and safer for staff because it avoids splashes.
Best for: glassware, small parts, and items with narrow lines, manifolds and joints
No brushing needed. The solution's wetting, emulsifying and dispersing power removes the residue on its own. Higher temperature or concentration speeds it up.
Best for: delicate or awkward items; overnight or long cycles (RBS 35 recommended for soaks over 3 hours in tap water)
Tip: For stubborn soils, use an ultrasonic bath, raise the solution temperature, or increase the concentration. Always rinse straight after cleaning, preferably with demineralised water.
RBS 25 and RBS 35 are both recommended by the manufacturer for the glass and optics industry. They remove particles, dust, fats and oils completely, leaving surfaces free of the traces and residues that can affect optical performance.
Typical uses: optical lenses, microscope slides, thin glass, mirrors, technical glass and laboratory glassware.
Glassware and equipment in stainless steel, plastic, porcelain, quartz and ceramic. Removes organic and mineral residues, distillation residues, proteins and cell cultures for reliable, reproducible results.
Cleaning and degreasing of electronic components and silicon or quartz wafers.
Degreasing of metal parts, stainless-steel components and injection moulds.
Cleaning of production equipment and parts made of glass and stainless steel.
Not recommended for white metals (such as aluminium, zinc or tin) because both products are alkaline. Ask us if you are unsure about a material.
The original RBS cleaner. Cost-effective and multipurpose.
RBS 25 Concentrate is a multipurpose, concentrated, foaming alkaline liquid cleaner for manual cleaning, ultrasonic baths and soaking. Its high emulsifying and wetting power gives excellent penetration in the cleaning bath. It removes organic and mineral residues, greases, oils, distillation residues, proteins and cell cultures, then rinses away completely without leaving any traces or invisible film.
RBS 25 was the first product in the RBS range, introduced as a safer alternative to chromic acid solutions for cleaning laboratory glassware.
Recommended for: laboratory glassware and equipment; electronic components; silicon and quartz wafers; metal parts; injection moulds; glass and optical lenses; production equipment.
High-performance cleaning, unaffected by hard water.
RBS 35 Concentrate is a multipurpose, concentrated, foaming alkaline liquid cleaner for manual cleaning, ultrasonic baths and soaking. It is insensitive to water hardness, so items can soak for long periods in ordinary tap water without limescale deposits. It removes organic and mineral residues, distillation residues, fats, ointments and cell cultures, and rinses away completely without leaving any traces or invisible film.
RBS 35 is a safer alternative to solvents and sulfochromic acid cleaning mixtures, which are toxic and hazardous.
Recommended for: laboratory glassware and equipment in plastic, porcelain, ceramic, quartz and stainless steel; metal parts; moulds; lenses and glass; silicon wafers; production equipment.
Both products clean the same materials, at the same 20 ml per litre dilution, by manual, ultrasonic or soaking methods. Choose RBS 35 if your water is hard or items soak for more than 3 hours. Choose RBS 25 for routine manual and ultrasonic cycles where cost matters most.
RBS 25
RBS 35
| RBS 25 Concentrate | RBS 35 Concentrate | |
|---|---|---|
| Best for | Routine manual, ultrasonic and short soaking cycles | Long soaks, hard tap water, high-performance cleaning |
| Manual & ultrasonic cleaning | Yes | Yes |
| Glass & optics | Yes | Yes |
| Water hardness | Can leave limescale on soaks over 3 hours in tap water | Insensitive to water hardness |
| Maximum soak in tap water | 3 hours (longer with demineralised water) | Prolonged soaking |
| pH concentrate / 2% | 13.6 / 11.9 | 13.2 / 11.5 |
| Density at 20 °C | 1.094 | 1.07 |
| Hazard label (GHS/CLP) | Danger: causes skin irritation and serious eye damage | Warning: causes serious eye irritation |
| Transport | Not regulated as dangerous goods | Not regulated as dangerous goods |
| Pack sizes | 5 L, 4 × 5 L, 20 kg | 5 L, 4 × 5 L, 20 kg |
Not sure which to choose? Tell us what you clean and how, and we will recommend the right product.
RBS 25 and RBS 35 are professional and industrial cleaning products. Always read the Safety Data Sheet before use. Both products are non-flammable and are not classified as dangerous goods for road, sea or air transport.
| RBS 25 Concentrate | RBS 35 Concentrate | |
|---|---|---|
| Signal word | Danger | Warning |
| Hazard statements | H315 Causes skin irritation H318 Causes serious eye damage |
H319 Causes serious eye irritation |
| Pictogram | GHS05 (corrosion) | GHS07 (exclamation mark) |
Environmental note: The surfactants in both products meet the biodegradability criteria of EU Detergents Regulation (EC) No 648/2004. Their Safety Data Sheets are issued under EU REACH, and neither product contains substances on the REACH Candidate List (SVHC) or Restriction List.
RBS 25 and RBS 35 are manufactured in Brussels, Belgium, by Chemical Products R. Borghgraef S.A., a specialist in detergents for laboratory and industrial cleaning processes. Founded by René Borghgraef in 1958, the company developed RBS 25 as its first product: a safer alternative to chromic acid for cleaning laboratory glassware. Its quality management system is certified to ISO 9001:2015, and since 2025 the company has been part of the international Christeyns Group, with the same RBS products and quality standards.
Chemical Products R. Borghgraef S.A.
Rue Bollinckx 271-273, B-1190 Brussels, Belgium
rbs-cp.be
1958
René Borghgraef begins detergent activities; RBS 25 follows as the first RBS product
1964
Becomes Chemical Products R. Borghgraef; RBS 35 added to the range
1977
Distribution extended to the United States
1982
Moves to larger facilities in Brussels
1997
New laboratories and warehouses built at the Brussels site
2000
First ISO 9001 certification (now ISO 9001:2015)
2025
Joins the Christeyns Group
A Singapore company serving the industrial chemicals market since 2005.
2005
The Sandpipers Pte. Ltd. was incorporated in Singapore on 29 September 2005 to serve the industrial chemicals market in Southeast Asia.
Today
As an authorised distributor of RBS 25 and RBS 35 Concentrate since 2005, Sandpipers exports from Singapore to customers throughout the region, supporting their industrial and laboratory cleaning requirements.
An authorised distributor of genuine RBS 25 and RBS 35 since 2005, appointed by the Belgian manufacturer.
Singapore-based team for enquiries, product selection, documentation, bulk orders and export shipments anywhere in Southeast Asia. Neither product is regulated as dangerous goods, which keeps export by sea, air or road simple.
Technical Data Sheets and Safety Data Sheets available for every product, ready for your QA and EHS teams.
For pricing, availability, bulk orders, data sheets or help choosing between RBS 25 and RBS 35, contact our Singapore team. As an authorised distributor since 2005, we export to customers throughout the region.
The Sandpipers Pte. Ltd.