What Paint To Use On Gel Coat

Painting directly onto the Gelcoat

Preparation

Practiced surface preparation is essential. Surfaces must be thoroughly degreased using a water soluble degreaser which must exist washed off subsequently with clean fresh water.  Afterwards degreasing the surface must exist sanded down and washed again to remove sanding debris and immune to dry. Nosotros recommend a 180 -240 grit sandpaper and standard washing up liquid as a degreaser.

Primer

Use SHIELD High Build Epoxy to repair and build upwards the GRP/gelcoat layer. SHIELD High Build Epoxy is easily sanded to provide a smooth cease ready for your topcoat. Three castor or roller applied coats at a spreading rate of 7 m² per litre of paint used, volition typically requite 10 years protection on a properly prepared surface. Available in a wide range of colours - you can choose a colour to lucifer the topcoat colour and can exist useful to come across how a last colour will look before committing to the topcoat.

For larger projects we recommend Jotun Penguard HB as it is available in v litre tins however information technology is but bachelor in a few colours.

Topcoat

You lot volition usually only need to utilize a topcoat above the waterline every bit below the waterline you lot would generally utilise an antifouling or, as it is not seen, you can leave the SHIELD High Build Epoxy Primer or Jotun Penguard HB as your final coat. Topcoats are available in either single pack or 2 pack varieties and are usually a gloss or satin finish. You tin can view our range of topcoats here.

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SML PPE Pack

Personal Protection Equipment Pack containing coveralls, goggles, respirators and gloves.

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Flexible Sandpaper Fabric Backed - 5 metre ringlet

Premium quality sandpaper available in several grades. The abrasive surface is cloth-backed rather than paper backed. This provides maximum flexibility and makes it extremely resistant to bottleneck and cracking. Much more durable than normal sandpaper.

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Penguard HB

Penguard HB is a high build, two-pack pure epoxy primer. It is ideal for application on GRP or gelcoat as it provides fantabulous waterproofing and will help prevent osmosis.

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Pioner Topcoat

Jotun Pioner Topcoat is a single pack, semi-gloss, acrylic topcoat which is suitable for employ both above and beneath the waterline.

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Hardtop XP

Hardtop XP is a loftier volume solids, glossy two-pack polyurethane topcoat with fantabulous gloss and color retentivity.

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Hardtop HB

Hardtop HB is a satin terminate two pack polyurethane topcoat with excellent color retention.

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4" Superfine Foam Roller

Unique concave terminate makes it possible to curlicue corners precisely and eliminates tram lines. High density cream for a smooth, loftier quality finish on apartment surfaces. Solvent resistant so volition not deliquesce or fall apart fifty-fifty when exposed to the strongest two-pack thinner. Available in packs of v or 10.

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Roller Tray

A black plastic roller tray that is bachelor in 4", 9" and 11" sizes. The 11" roller tray is heavy duty, reusable and suitable for utilize with larger rollers and when painting larger areas.

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Xylene Thinner

SML Xylene Thinner is ideal for utilize with antifouling and with quick drying unmarried pack acrylic primers and topcoats.

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Epoxy Thinner

SML Epoxy Thinner is ideal for employ with most ii-pack epoxy primers and topcoats.

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Source: https://www.smlmarinepaints.co.uk/painting_on_gelcoat

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