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Sherwin-Williams Ken-Kromik 489 (L489) | Steel Primer

Sherwin-Williams Kem-Kromik 489

489
SHE2163

Ken-Kromik 489 (formerly known as Sherwin Williams L489 and as Leighs L489) is a highly protective alkyd anticorrosive primer pigmented with minimum 40% zinc phosphate, used as an anticorrosive spraying or brushing primer for steel. 

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£84.14(ex. VAT)
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Description

Ken-Kromik 489 (formerly known as Sherwin Williams L489) is a highly protective alkyd anticorrosive primer pigmented with minimum 40% zinc phosphate, used as an anticorrosive spraying or brushing primer for steel, and can be applied by brush, roller, conventional and airless sprayers.

Recommended Primers/Topcoats


Indefinitely overcoatable with itself or a wide range of white spirit based undercoats and finishes.

Endorsements


  • Complies with BS5493:1977 - Table 4F Type FP3A
  • BS476 Part 7 - Surface Spread of Flame Material - for details of substrate/scheme, consult our Technical Team.

Surface Preparation


Ensure surfaces to be coated are dry and free from all visible traces of surface contaminants.

Application Equipment


Can be applied by brush and roller, as well as conventional and airless sprayers:

Airless Spray

  • Nozzle Size: 0.46mm (18 thou)
  • Fan Angle: 65°
  • Operating Pressure: 140kg/cm² (2000 psi)

The airless spray details given above are intended as a guide only. Details such as fluid hose length and diameter, paint temperature and job shape and size all have an effect on the spray tip and operating pressure chosen. However, the operating pressure should be the lowest possible consistent with satisfactory atomisation. As conditions will vary from job to job, it is the applicators’ responsibility to ensure that the equipment in use has been set up to give the best results. If in doubt our technical team should be consulted

Conventional Spray

  • Nozzle Size: 1.27mm (50 thou)
  • Atomising Pressure: 3.5kg/cm² (50 psi)
  • Fluid Pressure: 0.7kg/cm² (10 psi)

The details of atomising pressure, fluid pressure and nozzle size are given as a guide. It may be found that slight variations of pressure will provide optimum atomisation in some circumstances according to the set up in use. Atomising air pressure depends on the air cap in use and the fl uid pressure depends on the length of line and direction of feed i.e. horizontal or vertical.

For application by conventional spray, thin up to 5%. Wet film thickness should be adjusted accordingly. NB - Thinning will affect VOC compliance.

Application Conditions & Overcoating


In conditions of high relative humidity, ie 80-85% good ventilation conditions are essential. Substrate temperature shall be at least 3°C above the dew point and always above 0°C.

Application at ambient air temperatures below 5°C is not recommended.

The maximum air and substrate temperature for application is 50oC providing conditions allow satisfactory application and film formation. If the air and substrate temperatures exceed 50oC and coatings are applied under these conditions, paint film defects such as dry spray, bubbling and pinholing etc, can occur within the coating. If for any reason it is desired to apply at a higher temperature, please seek advice of our Technical Team.

Additional Notes


Any skin that may form on the surface of the paint in the container should be removed carefully to avoid the necessity of sieving the paint.

Numerical values quoted for physical data may vary slightly from batch to batch. 

Typical Thickness and Coverage


Dry film thickness

75 microns

Wet film thickness

129 microns

Theoretical coverage

7.7m²/ltr*

*This figure makes no allowance for surface profile, uneven application, overspray or losses in containers and equipment. Film thickness will vary depending on actual use and specification.

Practical Application Rates


Microns per coat

Airless Spray Conventional Sprayer Brush Roller
Dry 75* 75 50 45
Wet 129 129 85 78

* Maximum sag tolerance with overlap typically 100μm wet (50μm dry) by airless spray

Average Drying Times


15°C 23°C 35°C
To touch: 4 hours 2 hours 1½ hours
To recoat: 24 hours 16 hours 12 hours
To handle: 24 hours 16 hours 12 hours

These figures are given as a guide only. Factors such as air movement and humidity must also be considered.

Product Details
2163-273738

Data sheet

Manufacturer
Sherwin-Williams
For Use By
Industrial Use
For Use On
Steel
Application Method
Airless Spray, Spray, Brush, Roller
Sheen
Matt
Colour
Standard / Ready Mixed
Single, Two or Three Pack
Single
Product Certifications
BS5493:1977 - Table 4F Type FP3A, BS 476-7:1997 - Surface Spread of Flame
Coverage
7.7m² per litre
Touch Dry
1.5 Hours
UN Number
UN1263
Base Type
Solvent-Based
Base Type
Alkyd
Suitable For Use On
Steel
Finish
Matt
Application Method
Brush
Application Method
Roller
Application Method
Spray
Usages
Atmospheric
Usages
Anti-Corrosive
Usages
Zinc Phosphate
Product Usage Type
Primer
Product Range
Kem-Kromik
Colour Family
Grey
Colour Family
Black
Dry to Recoat (@ 20-25°C)
16 hours
Attachments
Download


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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IMPORTANT SHIPPING & DELIVERY INFORMATION

Sherwin-Williams Kem-Kromik 489 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


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