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Cuprinol Ultimate Decking Protector

Rot/Decay & Colour protection

Cuprinol Ultimate Decking Protector
  • Active ingredients prevent rot & decay
  • Wax-enriched for advanced weather protection
  • UV filters ensure long lasting colour

Cuprinol Ultimate Decking Protector has a superior triple action formulation that works in 3 ways to provide new and weathered decking with rich colour that lasts up to 5 years due to its pigments and UV filters; advanced weather protection from the added waxes and resins to help waterproof the wood; plus active ingredients that penetrate into the timber to preserve and protect it against rot & decay.

How much do you need?

A 2.5L can covers up to 12m² with 2 coats.

Coverage can vary depending on application method and the condition and nature of the surface.

Available to buy in these colours:

  • Clear
  • Country Oak
  • Autumn Brown
  • Golden Cedar

Pack sizes


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Usage guide

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Stir thoroughly before and frequently during use. Apply a minimum of two even brush coats to give a uniform finish. Allow the previous coat to soak in before applying the next, usually 2-6 hours under normal weather conditions. Please note that the type of wood and any previous treatment will affect colour. Try a representative test area first to ensure colour is acceptable when dry. Do not apply in temperatures below 5 degrees C, in damp conditions or if rain is likely before the product has dried. Avoid splashing surrounding plants, brickwork, glass, PVCu, etc. Any splashing should be cleaned up immediately (whilst still wet) with water and household detergent. Excessive spillage on plants should be rinsed off immediately before drying. Where a strong colour change is involved, more coats may be required. If using more than 1 pack it is advisable to mix them together in a larger container or finish in a corner before starting a new pack. This product is wax enriched to repel water. Recoat within 2-3 days of previous coat. If a longer period elapses try a test area to ensure product is not repelled.


2-6 hours. Drying times can vary depending on the nature of the surface and the weather conditions.


Remove as much stain as possible from equipment before cleaning with water.