• Sherwin-Williams Epidek M689

Sherwin-Williams Epidek M689


We no longer stock this product, but can recommend RSL Resuprime MVT as a great alternative for use as a concrete sealer.

Product not available
This Product has been Discontinued


We no longer stock this product, but can recommend RSL Resuprime MVT as a great alternative for use as a concrete sealer.

Sherwin-Williams Epidek M689 is a 100% solids two pack epoxy primer/sealer for application to suitably prepared concrete substrates.

Recommended Topcoats

  • Macropoxy M630V2
  • Epidek M153
  • Macropoxy M262
  • Epidek M339
  • Epidek M377
  • Epidek M689 must be overcoated within 3 days @ 23°C or 4 days @ 15°.

Consult Technical Team for further information.

Surface Preparation

Blastrack/scabble all surfaces to remove any laitance or contaminated surface layers to expose fresh, sound and firm concrete.

The underlying concrete core should be tightly bound and dry, remaining surface dust should be removed by brushing or further vacuum cleaning. Fibre filled concrete must be treated specially, please consult Sherwin-Williams.

The moisture content should be checked in at least two places within each section of concrete. The sections will normally be separated by a waterproof membrane. The maximum level acceptable is 7% for the application of M689 Sealercoat.

Where previous coatings have been applied, these must be completely removed prior to application of the M689 based systems. Any areas of floor which are pitted, very rough, or have any large blow holes, should be smoothed off using a 5:1 by weight blend of P515:M689 prior to application of the Epidek M689 Primer. It is recommended that prior to application of Epidek M689 systems contact is made with Sherwin-Williams.

Due to the varying nature of concrete substrates, it is to be advised that a small trial area is prepared of the Epidek M689 system prior to coating the entire floor area.

Application Conditions & Overcoating

The material must be applied at temperatures in excess of 10°C. the substrate and ambient air temperature must be in excess of 10°C and the relative humidity should be no more than 85%. Substrate temperature should be at least 3°C above the dew point and always above 0°C.

Application below 10°C is not recommended.

Development of satisfactory physical properties including hardness and abrasion resistance will be obtained within 24-48 hours at a temperature of 10°C. In order to achieve optimum water and chemical resistance, curing temperature needs to be maintained above 10°C during curing.

If it is desired to overcoat outside the times stated on the data sheet, please seek advice from our Technical Team. 

Product Details

Data sheet

Interior / Exterior Use
Water / Solvent Based
For Use On
Application Method
Roller, Float
Single, Two or Three Pack
5m² per litre
Touch Dry
6 Hours
UN Number (Activator)
UN Number (Base)

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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Sherwin-Williams Epidek M689 is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT