SARO anti-wear products
Industrial sectors served by SARO
Applications of SARO anti-wear solutions

SARPOL RP17

Low-friction ceramic-filled epoxy coating

SARPOL RP17 is a ceramic-filled epoxy characterised by an extremely smooth finish and a low coefficient of friction, designed to reduce turbulence, erosion, and surface wear.

The product is used both as corrosion protection and as a technical finishing layer in SARO wear-resistant systems, especially in applications requiring:

  • reduction of material flow friction
  • improved internal flow smoothness

The main applications concern:

  • heat exchangers and condensers
  • tanks and chutes
  • technical housings and worn surfaces
  • cooling pumps
  • butterfly valves
  • components subject to turbulence and abrasion
SARPOL RP17 low-friction ceramic-filled epoxy coating – SARO

SARPOL RP17 provides the following product characteristics:

TYPICAL POLYMERISATION PERFORMANCE

Technology

Epoxy

Chemical Type

Epoxy

Appearance (Resin)

White

Appearance – Mixture

White Liquid Mixture

Components

2 parts – Resin & Hardener

Mixing Ratio (Weight) Resin: Hardener

4.5 : 1

Polymerisation

At ambient temperature after mixing

Application

Anti-Wear Coating

Application Temperature

15 – 30°C

Operating Temperature

-30 : 90°C

Advantages

Ceramic fill – for excellent abrasion resistance

Reduced working time

Brushable – very smooth consistency, extremely glossy

Superior adhesion

Very low coefficient of friction

TYPICAL CHARACTERISTICS OF MATERIALS

Properties of Part A

Density @ 25 °C, ISO 1675, g/cm³

1.85

Brookfield viscosity - RV, 25 °C (cP) – Spindle 7, 20 rpm

120 000 - 180 000

Properties of Part B

Density @ 25 °C, ISO 1675, g/cm³

1.05

Brookfield viscosity - RV, 25 °C (cP) – Spindle 2, 20 rpm

500 - 900

Properties of A + B Mixture

Density @ 25 °C, ISO 1675, g/cm³

1.81

Cone & Plate viscosity, 25 °C (cP) – Velocity Gradient 10 s⁻¹

17 000

Hardening Properties

Open time, ASTM D2471 minutes

35

Time between coats @ 25 °C, hours

1 – 3

Polymerisation time @ 25 °C, hours

5

Coverage

To achieve a thickness of 0.5 mm

coverage of 1.1 m² per 1 kg

GENERAL INFORMATION

This product is not recommended for use in oxygen-rich and/or pure oxygen systems and should not be selected as a sealant for chlorine or other strong oxidising materials.

For information on the safe handling of this product, consult the safety data sheet (SDS).

INSTRUCTIONS FOR USE

Surface Preparation

Surface preparation is important for the long-term performance of the product. The parameters can vary depending on the severity of the application, expected service life, and initial conditions of the substrates to be treated.

  1. Remove any dirt, oil, grease etc. with a suitable detergent.
  2. Any irregularities, weld splashes or residue, and any other surface roughness must be levelled and ground smooth; any depressions or porosity must be filled and ground smooth. All protrusions, edges or joints must be levelled to a minimum radius of 3 mm and all corners must also be rounded to the same specifications.
  3. Blast the entire surface to be treated with angular grit until you achieve roughness of 50-70 microns, and near-white metal blast cleaning level (SIS SA 2½ /SSPC-SP 10). For immersion applications, a white metal blast cleaning (SIS SA 3/SSPC-SP 5) level is required.
  4. After abrasive blasting, the metal surface must be cleaned with a cleaner which does not leave residue, or with a solvent, to remove dust and contaminants. Clean, dry compressed air can also be used to remove dust and contaminants. The surface must be coated before any new oxidation occurs.

Method of Application:

  1. Film thickness for coating: 200-300 microns. It is recommended to apply a minimum of 2 layers to avoid micro-pitting.
  2. Application temperature (surface and ambient): 15-30 °C.
  3. Relative humidity: <85%; The surface temperature must always be at least 3 °C above the dew point.

Subsequent coats must be applied once the product layer has gelled but not cured, within the “overcoating time”. If this time is exceeded, lightly abrade the surface and clean it with a solvent to remove residues.

Check:

  • Perform a visual check as soon as application is complete to ensure there is no untreated porosity.
  • Once the coating has cured, repeat the visual inspection to confirm the absence of untreated areas, porosity, or mechanical damage.
  • Check the coating thickness, especially in critical areas.

Attention: Use an approved positive-pressure air-supplied respirator when welding or cutting near cured compound. Do not use open flames on the compound..

Repairs

Any untreated area or porosity, or zone with insufficient thickness, that is detected must be restored or repaired by applying additional product, after light abrasion and surface cleaning.

Cleaning

Clean the equipment immediately after use with a solvent such as acetone or isopropyl alcohol. Once hardened, the product can only be removed mechanically.

2

Not for Product Specifications

The technical data contained herein is for reference purposes only. Please contact the technical department for assistance and recommendations regarding specifications for this product.

Storage

Store the product in the closed container in a dry place. Storage information may be indicated on the product container's label.

Optimal storage: 8 to 21 °C. Storage below 8 °C or above 28 °C may negatively affect the product's properties. Material removed from containers may become contaminated during use. Do not return product to the original container. SARO Srl cannot assume responsibility for product that has been contaminated or stored under conditions other than those indicated above. If further information is required, please contact technical support or your local representative/vendor.

Disclaimer

The information provided in this technical data sheet (TDS), including recommendations for the use and application of the product, is based on the manufacturer's knowledge and experience as of the date of this TDS. The product may have a variety of different applications, as well as different application and working conditions in the environment of use beyond the manufacturer's control. SARO Srl, therefore, is not responsible for the suitability of the product for the production processes and conditions for which it is used, nor for the intended applications and results. It is strongly recommended to conduct your own tests to confirm its suitability. Any liability relating to the information contained in the technical data sheet or any other written or oral recommendation regarding the product is excluded.

SARO Srl expressly disclaims all express or implied warranties, including warranties of merchantability or fitness for a particular purpose, arising from the sale or use of SARO Srl products. SARO Srl expressly disclaims any liability for consequential or incidental damages of any kind, including lost profits.