Sherwin-Williams Magnalux 43VC is a two component resin-rich cold cured vinyl ester acrylic copolymer containing wax additives.

For use as a veil / topcoat in aggressive environments, which would attack the glass pigmentation in Magnalux Glass Flake products.

Magnalux products must not be applied over any existing painted surface, or any substrate which contains copper or zinc compounds. This includes copper or zinc based paints, or metal sprayed surfaces.

Please note: This product is subject to a 14 day lead time upon ordering.

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• Features & Benefits
• Recommended Application Methods
• Product Characteristics
• Recommended Systems
• Practical Application Rates
• Average Drying Times
• Application Equipment
• Surface Preparation
• Application Conditions & Overcoating
• Additional Notes
• Health & Safety

Features & Benefits

• Two component resin-rich cold cured vinyl ester acrylic copolymer containing wax additives
• For use as a veil / topcoat in aggressive environments, which would attack the glass pigmentation in Magnalux Glass Flake products
• To be applied over Magnalux Glass Flake products only i.e.
  • Sherwin-Williams Magnalux 42PE
  • Sherwin-Williams Magnalux 42SF
  • Sherwin-Williams Magnalux 41V2
• Low VOC - <50 gms/litre determined practically in accordance with UK Regulations PG6/23
• Theoretical coverage of 4.5m²/litre at 200 microns
• Magnalux products must not be applied over any existing painted surface, or any substrate which contains copper or zinc compounds. This includes copper or zinc based paints, or sprayed metal surfaces

Recommended Application Methods

Application Method:

• Airless Spray
• Brush application is not recommended

Recommended Cleanser:

• No.13 for cleaning only
• Product must not be thinned

Product Characteristics

*All vinyl/polyester resin systems are subject to monomer loss and material shrinkage during application and curing.

Mixing Ratio:

• 98:2 base to hardener

Shelf Life:

• Base and catalyst (Hardener) 6 months, stored at temperatures below 20°C, away from heat sources and out of direct sunlight
• Frequent temperature cycling will shorten storage life

Recommended Systems

Topcoat for Magnalux Glass Flake products:

• Sherwin-Williams Magnalux 42PE
• Sherwin-Williams Magnalux 42SF
• Sherwin-Williams Magnalux 41V2

Practical Application Rates

*Maximum sag tolerance typically 444μm wet (400μm dry) by airless spray

Average Drying Times

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

Application Equipment

• Airless Spray - Graco King 30:1 or similar - all filters removed - Min 3/8” hose diameter

Airless Spray:

• 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

Brush application is not recommended.

Surface Preparation

• To be applied over Magnalux Glass Flake products only
• Ensure surfaces to be coated are clean, dry and free from all surface contamination

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
• At application temperatures below 10°C, drying and curing times will be significantly extended, and spraying characteristics may be impaired
• If application and curing temperatures fall below 5°C, full cure may not be obtained - post curing may be required for certain aggressive environments - see additional notes
• It is not advisable to apply polyester coatings when the air or substrate temperature exceeds 45°C, or the substrate temperature exceeds 55°C
• These conditions can introduce paint film formation defects such as dry spray, pinholing, bubbling etc
• If it is desired to overcoat outside the times stated on the data sheet, please seek advice of Sherwin-Williams

Additional Notes

• Drying times, curing times and pot life should be considered as a guide only
• For optimum immersion service normal full cure must be achieved, ie 72 hours at 20°C (post curing at 80-100°C will shorten the cure time to 3 hours and may be recommended for some aggressive environments)
• For immersion spark test at 5kv per 1.0mm dft and repair defects by overcoating with the specified dft of Magnalux 43VC
• The reaction between the base component and catalyst is highly exothermic
• Deviation from the recommended mixing ratio should not be undertaken without first consulting Sherwin-Williams
• The catalyst must be stored separately from the base, and from any other paint or chemical products, in accordance with the product safety data sheet
• The quoted pot lives are typical figures for a full 20 litre unit @ 2% catalyst level
• Should any thickening or lumps appear in the mixed product, this should be discarded and the equipment flushed through and cleaned immediately
• Reduction in catalyst level and/or volume of mixed product will extend the pot life
• Flushing of spray equipment is essential before any break in work, and is recommended at regular intervals throughout the application procedure
• Only mix units of Magnalux as they are required for immediate use
• Magnalux products should not be thinned with cleanser thinners or any other solvent
• Thinning will severely impair the curing mechanism and subsequent performance
• Thinning with normal paint solvent can lead to exothermic reaction and possible fire or explosion hazard
• Magnalux products must not be applied over any existing painted surface, or any substrate which contains copper or zinc compounds
• This includes copper or zinc based paints, or metal sprayed surfaces
• Numerical values quoted for physical data may vary slightly from batch to batch

Health & Safety

Consult the Safety Data Sheet for information on safe storage, handling and application of this product.

Please contact Rawlins Paints' Technical Support Team on 0113 2455450 (option 2) or send a message to [email protected] for more information.