When is Koster ORS used?
Koster ORS is used for cleaning and coating concrete
contaminated with : OIL, CHEMICAL, FAT, LUBRICANT OR ANY LIQUID.

What does Koster ORS acheive?
After the application of Koster ORS on contaminated
concrete floors,
• Oil contamination is removed and concrete is made ready for new floorings
• In the process concrete does not lose its properties and retains its original strength.
• The Koster ORS prevents any further oil contamination.

What is Koster ORS ?
The Koster ORS System comprises of ORS D which is a specially designed chemical based detergent application which penetrates deep into the concrete to remove the contaminants, and the ORS C which is a high specific gravity based oil resistant epoxy base coat. These provide a combination of removal of the contaminants from deep into the surface and then providing a barrier for up / down movement of the contaminants. This once achieved provides a problem free surface for over lays with floor coating finishes.

How is Koster ORS applied ?
The entire application is mechanized, which renders it quick, with least disturbance to ongoing working areas and almost dust free. The surface preparation is carried out with a fully automatic shot blasting machine, which assists in opening out the surface pores of the concrete.
The ORS D is then applied on the surface using a foam gun. This is allowed to remain over the surface for about 60 minutes. The ORS D is forced into the concrete using a mechanical spinner which ejects hot water at 90 deg. C and at 250 – 300 bar pressure forcing the detergent deep into the concrete. Depending on the degree of contamination, the ORS D application is repeated 2 or more time. The detergent along with the contaminants is vacuumed off the surface using high powered industrial cleaners. The waste water is transferred to containment tanks from where it is disposed. This cleaning may be repeated to get a clear and clean surface.

The ORS C is now ready for installation. The ORS C is a 2 Component system which is mixed on site to achieve a streak free consistency. This is then poured on to the floor surface and evenly spread using handheld sweegees followed by back rolling using a nap roller. After about 15 to 20 minutes graded sand is broadcasted over the surface to provide a finish ready to take the final epoxy floor finish. Foot traffic is permitted about 12 hours after the ORS C installation.

Preparing the Surface
ORS application is used for any type of surface. Contamination such as adhesives, adhesive residue, old coatings, curing compounds and underlayments must be removed completely by shot blasting prior to the ORS treatment being applied. Our first observation to determine the level of contamination. It may be necessary to mechanically remove surface buildup of oily crusts prior to the application of special detergent ORS-D. The substrate must be cleaned with ORS-D and hot water (82ºC) blaster with a minimum of 5000psi in accordance with the detergent scrubbing method as given by Chowgule Koster. Vaccum the oily waste water into containment tanks.
Repeat process until oil is removed fully from the concrete slab. Dispose of the oily waste water in accordance with all state and local regulations.

Advantages
• As the test cores indicate, cleaning can take place to considerable depth without damage to concrete.
• Coverage upto 1000 sqmts per 8 hr. shift.
• Fully Mechanised process right from surface preparation to removal of contaminants.
• Concrete will not lose alkalinity
• No toxic fumes, dust or disruptive noise during application.
• No interruption of other activities.
• Cost effective.

The entire application is simple, quick and mechanized, and can be done in parts with least disturbance to on going working areas and almost dust free. The application can cover up to 1000 sqmt. per 8 hr. shift.

Disposal
Containment and dispose of all waste material & waste water generated by the ORS cleaning & coating procedures in accordance with all current regulations and requirements. Collect any spills with absorbent materials.
Note : The Koster ORS System can take vapor-pressure upto 5 lbs/1000 ft²/24 hour period or less (ASTM F 1869 calcium chloride test). This unique ORS Coating is compatible with most underlayments, floor adhesives and industrial coating systems. For vapor pressures upto 25lbs/1000 ft²/24 hrs use Koster VAP 2000.
Contact Chowgule Koster technical support for further details or for specific applications.
Chowgule Koster offers a complete warranty for the entire system when properly applied.

Environmental Conditions
The Koster ORS System must be applied at ambient and substrate temperatures between 50° and 90° F. (10° C and 32.2° C). The relative humidity must not exceed 80%.

Warranties
LIMITED WARRANTY: CHOWGULE KOSTER warrants that its products shall be in accordance with their published specifications and covenants that, in the event any of its products fail to meet their published specifications or their published performance standards (subject to published conditions such as proper application and surface preparation), CHOWGULE KOSTER shall replace those products proved defective, but Koster shall not be responsible for consequential damages due to the breach of its warranties. Notwithstanding the foregoing, CHOWGULE KOSTER’S liability hereunder shall not exceed one and one-half (1 1/2) times the cost of the defective product originally purchased. EXCEPT AS SET FORTH ABOVE, KOSTER MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, AND MAKES NO WARRANTY AS TO THE MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.