Velox Plus

Possibly the Most Effective Antifouling for Propellers on the Market

Twin Pack of .250 litre tins of Primer and Antifoul Suitable for the average Sailing Yacht. £38.90
Twin Pack of .500 litre tins of Primer and Antifoul Suitable for Twin Screw Motor Yachts £58.90

Available by post from:


Marine Superstore, Chichester
Tel No. 01243 514755

Marine Superstore, Port Solent
Tel No. 02392 219433


Attached please find three pictures of the sterngear of Sirdar as we discussed yesterday. When the vessel was lifted at Granville on the 19th March after, I am told, 8 months afloat mostly in UK (Chichester Harbour) and the rest of the time in Guernsey, the hull had a modest level of weed and slime attached. The parts treated with Velox, props and shafts, were clear. There were several small areas on the props where the adhesion of the paint had failed. Otherwise the Velox appeared to have been effective with no weed or crustaceans. We have treated all the sterngear with Velox and the other two pictures shows this before relaunch. A small roller was used which appeared to produce a somewhat better finish than a brush.

Instructions for Use

    Before you start, make sure you have all the necessary tools,
    paints and solvents:
    1. METAL PRIMER 5. Stirring paddle
    2. VELOX PLUS 6. Sandpaper n. 80
    3. SOLVENTE 102 7. Clean rags (or MIBK - or pure ACETONE) 8. Brushes
    4. PPE (mask, gloves, etc. - read label)


    Surface preparation can be divided into four steps:
    1.1 Remove old antifoulings or other coatings (jump to 1.2 in case of new propellers/stern drives).
    1.2 Clean and degrease all bare metallic surfaces.
    1.3 Roughen well the clean metallic surfaces.
    1.4 Remove dust and carefully clean the surfaces.
    1.1 Remove all existing antifouling or other coating
    using sandpaper n. 80, manually or with careful use of a dual action rotary sander (we suggest using a soft pad in order not to damage the propeller). Do not remove old VELOX PLUS from previous season (see recommendations, point 3.2). Do not remove factory finish from aluminium stern drives.
    1.2 Wash and degrease carefully all metallic surfaces with our SOLVENT 102 ANTISILICONE (or MIBK or a good and fast degreasing solvent like pure ACETONE) and a clean rag. Change rag frequently, especially in case of new or folding propellers, which usually have more grease on them.

  • 1.3 Sand thoroughly all metallic surfaces with dry sandpaper n. 80, renewing it often. A dual action rotary sander can be used. Do not use wet sandpaper. The surface must be rather rough after sanding. Do not use coarser than 80 grit, nor finer, nor worn out sandpaper. Do not use scotch brite. We do not recommend sandblasting unless done by an experienced professional.
    1.4 Brush all surfaces with a dry and clean cloth. Do not touch the surfaces with bare hands, that may leave traces of grease or dirt. If the surface gets contaminated again with some grease or dirt, use only MARLIN SOLVENTE 102 or pure MIBK to clean it. If MIBK is not available, start again from point 1.2 then clean the surface with a dry rag only. Absolutely do not wash the sanded surface with water, soap, acid.

  • NOTE: We suggest protecting bare aluminium with an appropriate
    epoxy coating (after careful surface preparation as explained above).
    This is not necessary when aluminium is already proteceted with
    factory finish (like new stern drives). On epoxy cycles or factory finish,
    just lightly sand the surface with abrasive pad (like Scotch Brite) or
    fine sandpaper (n. 180-220) before applying METAL PRIMER.

    2.1 Apply one coat of METAL PRIMER (maximum wet film thickness 100°, dry film thickness 30°). We suggest application with a small/medium brush. Leave it dry for at least 3 hours at 68° F (20° C). A light coat is enough, applying thicker cvoats than recommended may result in worse adhesion.

  • 2.2 Apply one coat of VELOX PLUS by brush (wet film thickness 100°, dry film thickness 30°). Apply it with continuous long brush strokes. Avoid going back and forth on the same spot, as this will soften too much the METAL PRIMER. As pictured below, full coverage will not be achieved with first coat of VELOX PLUS. The first coat will normally slightly soften the primer, showing some of its green colour.

    2.3 Wait at least 3 hours at 68° F (20° C) then apply a second coat of VELOX PLUS (wet film thickness 100°, dry film thickness 30°). For best result, apply it by brush with long and continuous strokes, perpendicular to the brush strokes of the first coat. A third coat of VELOX PLUS may be applied to obtain perfect coverage or in areas where fouling growth is particularly agressive.

  • 2.4. Wait at least 12 hours at 68° F (20° C) before launching.


    3.1 Prepare the surface carefully: at the time of applying METAL PRIMER all metallic surfaces should be very rough and clean (free from grease, dust, fingerprints, sweat, water, soaps or any kind of dirt or contaminating
    agent). Below there are two pictures showing paint detachment caused by surface not well prepared.

  • 3.2 On top of VELOX PLUS from previous season, another two coats of VELOX PLUS can be applied directly as explained above in points 2.2 and 2.3, after cleaning and lightly sanding the surface with fine sandpaper or abrasive pad (like Scotch Brite). We suggest removing all the antifouling paint in any case at least every three years. Do not apply METAL PRIMER or VELOX PLUS on any other antifouling.
    3.3 Do not apply VELOX PLUS on bare metal.
    3.4 For spraying both VELOX PLUS and METAL PRIMER, it is not necessary to dilute the product.
    3.5 Stir very thoroughly both METAL PRIMER and VELOX PLUS before application as both contain heavy particles that may sediment. Scrap the bottom of the can and stir until the paint becomes homogeneous.
    3.6 Brush out immediately any sag or dip that may form when applying METAL PRIMER or VELOX PLUS,
    check carefully the edge of the blades for dips after the application of every coat.
    3.7 Read carefully the instructions on the label and always wear suitable protective clothing, goggles, mask,gloves as prescribed.

    Colour: White
    Specific gravity 1.20 - 1.30
    Application brush, spray gun
    Thinner not necessary
    Drying time
    touch dry 1 hours at 68°F
    for recoating 3 hours at 68°F
    for launching 12 hours at 68° F


  • The following pictures show some propellers treated with VELOX PLUS after one year service.

  • The following pictures show some propellers treated with VELOX PLUS after one year service.

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