Sadolin Superdec Gloss Opaque Wood Protection - New Formula

Sadolin Superdec Gloss the ultimate all-in-one solution for a flawless, long-lasting finish. Designed to deliver a rich, opaque solid colour, it effortlessly hides timber blemishes while providing superior protection for your surfaces. Its highly flexible, microporous formulation resists cracking, peeling, and flaking, allowing wood to breathe while staying beautifully protected.

Ideal for both new and previously coated wood, Sadolin Superdec Gloss is self-priming and doubles as an undercoat, simplifying your painting process. It also contains a built-in biocide to safeguard the dried paint film against fungal degradation, offering up to 10 years of durable protection.

But that’s not all this versatile coating isn’t limited to wood. Superdec Gloss can be applied to weathered plastic, metal, cladding, concrete, and masonry, making it a true multi-surface solution for a polished, professional finish every time.

• Up to 10 years protection
• Multi-surface application
• Self-priming and undercoating
• Highly flexible formulation
• Microporous for breathability
• Biocide protection against fungal growth
• Covers timber blemishes for a flawless finish

All surfaces must be clean, dry, and free from contaminants that may interfere with adhesion, including dust, grease, wax, resin, and timber extractives. Once prepared, clean all surfaces with warm water and a mild detergent, rinse thoroughly, and allow to dry completely.

• Resinous knots should be treated by drilling out and filling, or by applying an appropriate blocking primer.

New or Bare Wood

• Grey, denatured timber must be sanded back to a clean, bright, sound surface.
• Degrease using methylated spirits applied with a clean, lint-free cloth.
• If required, treat with Sadolin Quick Dry Wood Preserver, paying special attention to freshly cut end grains.
• Fill small holes with Sadolin Woodfiller and sand smooth, following the direction of the grain.

Previously Varnished Surfaces

• Strip back to bare wood and prepare as for new wood.

Previously Painted or Wood-Stained Surfaces

• Remove all loose or flaking coatings using a scraper or abrasive paper.
• Grey, denatured timber or surfaces in poor condition must be sanded back to a clean, bright, sound surface and treated as new wood. Do not use wire wool.
• Sound glossy surfaces should be lightly abraded to provide a good key. Clean as described above.

Weathered Plastic and Composite Surfaces

• On smooth, shiny surfaces, lightly abrade using a Scotch-Brite pad to provide a key. Clean with warm water and a mild detergent and rinse thoroughly

Metal Surfaces

• Suitable for use on steel. Remove all rust and residues thoroughly.
• Prime all bare metal with Sandtex Trade Rust Inhibiting Primer Undercoat.

Concrete, Masonry, Brick, and Stone

• Remove loose or flaking material using a scraper or stiff bristle brush (not wire).
• Remove organic growth using Sandtex Fungicidal Wash.
• Fill small cracks with Sandtex Ready Mixed Filler.
• Stabilise bare, filled, and previously decorated chalking areas using Sandtex Trade Quick Dry Stabilising Solution.
• New concrete must be allowed to cure for at least 30 days before coating.
• Clean glossy painted surfaces as described above.

PRECAUTIONS: Do not paint white UPVC with dark colours. Work in well ventilated areas. Use suitable personal protective equipment. Avoid the inhalation of dust. Wear a suitable face mask if dry sanding. For further detailed advice please refer to the technical datasheet.

We recommend carrying out a small trial application before starting your project. The final colour and coverage will depend on the original surface colour, condition, and number of coats applied. For consistent colour, always intermix multiple packs before use. Stir thoroughly before and during application.

• Apply using a synthetic brush, roller, or airless spray. For spray application, always follow the manufacturer’s instructions for your equipment.
• Sand lightly between coats if the grain raises.Use 180–220 grit sandpaper. This lightly smooths the raised grain that can appear after the first coat without cutting through the paint layer.
• For new and bare wood apply 3 coats for optimum protection and finish.
• For weathered and maintenance apply 2-3 coats depending on the degree of weathering.

Following these steps will ensure a durable, flawless, and long-lasting finish with Sadolin Superdec Gloss.

Q. How long is the protection for Sadolin Superdec Gloss Opaque Wood Protection before maintenance?

A. This product offers 10 years durable protection making it ideal for protecting exterior surfaces.

Q. Can I use this on the wood and concrete posts?

A. Yes absolutely, this product is a multi surface self priming paint. It can be used on exterior wood, weathered plastic, concrete, steel, masonry, cladding and more!

Q. Is Sadolin Superdec Gloss Opaque Wood Protection a stain or a paint?

A. Sadolin Superdec Satin is a water-based paint for exterior wood that comes in an opaque satin finish.

Q. Can this product be tinted to any RAL?

A. We can tint this product to many RAL colours. Sadolin also offer a large colour range from neutrals to bright bold contemporary colours which can be found on our Sadolin Superdec Satin Opaque Wood Protection - tinted under the Sadolin colour range.

Delivery - All orders placed on a working day before 3pm will be dispatched on the same day for next working day delivery. Orders placed before 3pm on Friday will be delivered on Monday (excluding bank holidays). Orders placed after 3pm on Friday, weekends and Bank Holidays will be dispatched on the next working day. 

Delivery of Tinted Products - Tinted paints are dispatched in line with our express order process, shown below. However, due to their bespoke nature, please allow up to an additional 5 working days to accommodate any potential courier delays or delivery issues before receiving a refund or replacement.

We strongly suggest customers avoid booking tradespeople until they receive their order. Next Day Paint will not be held liable for any costs incurred due to order processing errors, delivery delays, or other issues that may result in financial loss.

Delivery Options

Express Shipping - £3.99

Order by: 3pm, Monday - Sunday

Expected delivery: Next working day, 8am - 9pm

AM Delivery - £12.99

Order by: 4pm, Monday - Sunday

Expected delivery: Next working day by 4pm

Late Cut-Off - £5.99

Order between: 3-4pm, Monday - Friday 

Expected delivery: Next working day, 8am - 9pm

Extended Late Cut-Off - £7.99

Order between: 4-5pm, Monday - Thursday

Expected delivery: Next working day, 8am - 9pm

Saturday Delivery - £9.95

Order by: 4pm, Friday 

Expected delivery: Saturday, 8am - 9pm

Standard Delivery (Out of Zone Postcodes Only) - £8.99

Order by: 3pm, Monday - Sunday 

Expected delivery:  3-5  working days, 8am - 9pm

Note: Orders placed on weekends or bank holidays will be dispatched on the next working day for delivery on the following day

We do not deliver to the Channel Islands or the Republic of Ireland

Certain postcodes delivery times and charges may vary please head to the cart to see your available delivery options.

Returns

We offer a 14 day money back guarantee for all goods shipped correctly that are not required. If the item is not required, please send the item back for a full refund in its original condition, unused with its original packaging. Please note return for unwanted item is at your own expense.

Contact us as soon as possible to inform us you will be returning the product either by a contact form or by calling our team on 0161 960 0217.

All tinted paint purchases are final and non-refundable. If you're unsure about your selection, please refer to the product listing or contact us for guidance before ordering. Once mixed, tinted paints cannot be returned or refunded, regardless of delivery delays or changes in circumstances.

While we aim to meet delivery timelines, we are not responsible for delays caused by couriers, weather, or other external factors.

We recommend ordering samples or colour charts before purchasing. While we strive to represent colours accurately, screen settings and surface types can affect appearance. Opened tins cannot be returned due to dissatisfaction with colour.

For non-tinted products, we offer a 14-day money-back guarantee. Items must be returned unused, in original condition and packaging, at your own expense.

Damaged Paint

Please visit our damages page, where we can help resolve the issue for you. 

Incorrect Item

If we have sent you a different item from what you ordered, we will be happy to organise an exchange for the correct goods at no extra charge to yourself, please get in touch to organise this.

Faulty Items

Faulty items can be refunded or exchanged within 30 days. All returns are tested, and if no fault is found, no refund will be issued you'll have the option to have the item returned. For faults discovered after 30 days, please contact the manufacturer for further support.