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🌿 Protect your deck like a pro—natural, durable, and rainproof perfection!
RONSEAL Ultimate Protection Decking Oil Natural 5L is a water-based linseed oil formula designed to deeply nourish and protect wooden decks. It offers a natural glossy finish, resists weather damage, dries to touch in 4 hours, and lasts twice as long as standard oils. Ideal for maintaining and restoring wood’s natural beauty while providing fast rainproofing and anti-slip benefits.


| ASIN | B00H5W3ZEY |
| Base Material | Water Based |
| Best Sellers Rank | 214 in DIY & Tools ( See Top 100 in DIY & Tools ) 7 in Stain |
| Brand | Ronseal |
| Coating Description | Water Based |
| Colour | Natural |
| Compatible Material | Wood |
| Coverage | 8m2 per litre |
| Customer Reviews | 4.6 out of 5 stars 8,572 Reviews |
| Finish | Glossy |
| Global Trade Identification Number | 05010214872978 |
| Included Components | 1 Tin |
| Item Dimensions | 18 x 11 x 29 centimetres |
| Item Type Name | Decking Oil |
| Liquid Volume | 5 Litres |
| Manufacturer | Ronseal |
| Material | Water Based |
| Model Name | RONSEAL Ultimate Protection Decking Oil Natural 5L |
| Model Number | 338461-STX |
| Model name | RONSEAL Ultimate Protection Decking Oil Natural 5L |
| Number of Items | 1 |
| Opacity | 0.2 inches |
| Paint Type | Water Based |
| Part Number | 37297 |
| Recommended Uses For Product | protecting and enhancing the appearance of wooden decks |
| Size | 5 Litre |
| Special Features | Restores Natural Look of Wood |
| Style | Single |
| Surface Recommendation | Wood |
| Surface recommendation | Wood |
| Unit Count | 1000.0 millilitre |
C**G
Revived our decking
This decking oil is great. Our decking is quite old so after cleaning it with fungicidal cleaner and letting it dry in the hot sun, I used this. It's great stuff and soaked into the wood almost immediately. Initially I put the first coat on a bit too thick which meant that it took a long time to soak in. In fairness the instructions were clear about thin coats - so it was my own fault. It will easily cover a medium sized deck like ours. I did two coats and it looks great. There's a great depth to the colour. I used this oak colour as it was an old deck so it hides the old wear and tear. The water beads off the surface so I know it's definitely doing its job. Two coats was great for our old decking. I'll probably do another very thin coat in the spring to give it a bit of a lift.
E**E
Great on waxed decking
Created a patio using “waxed” decking. This applies evenly, smoothly and allows the natural colour of the decking to shine through - so applies as a translucent oil which enhances the natural wood colour and not a stain. Covers well when applied with a good quality brush. Touch dry within 4 hours, fully useable within 24 hours. Rain sits on the decking. Having used this for about 5 years, I can honestly say that it is very anti-slip. The price has fluctuated and it’s now considerably more expensive than when I first used it but great quality, functionality / use and, most importantly - non-slip.
J**M
A good choice from a range of decking protection products
There is a rather confusing array of products when it comes to decking oils/stains/protectors etc. I had to do some research to differentiate the products. Briefly; - Decking Stains are water based which form a protective top-coating in the selected colour. This topcoat protects from water and sunlight damage to the wood, and it provides the most protection. The downside is that it can peel with time and leave a very scrappy appearance. - Decking Oils are oil-based, and absorbed into the wood replacing natural oils rather than sitting on the surface. These are coloured (even natural) to protect against UV, and the oil prevents water penetrating the wood. The advantage is because it isn't like a surface paint, it will not peel with time and so can be readily re-oiled with less preparation. They contain a pigment for UV protection, but offer lower weather-proofing than decking stains (according to claims). - Decking Protectors are waxed based, and provide a waxy waterproof coat when dry. Again, this is a surface water protector which can flake/peel over time. - Wood preservers which are solvents containing anti-fungal and insecticide compounds. The solvent carries these into the wood helping to prevent insect and fungal decay. Most (probably all) decking has been pressure pretreated in a similar manner making wood preservatives unnecessary. However some treating of the cut ends and knots etc. is a good idea. Having said that the Ronseal Ultimate Decking Oil and Ronseal Decking Oil (regular) are slightly different. Although both are decking oils, the Ultimate is actually water-based, whereas the regular Decking Oil is a traditional oil-based product. The easiest way to differentiate is to look at the brush cleaning instructions; if it says 'wash brushes in water' it is water-based, whereas if it says 'use white-spirit' (or similar) it is an oil-based product. It seems a bit contradictory to have a water-based oil, but Ronseal claim this is a new linseed oil based technology, and offers greater protection over traditional decking oil. It seems to me more like an emulsion than an oil. So, my experience. It is very easy to apply with a fence-type coarse brush and permeates the contours of the decking easily. The 'natural' actually has a slight tint which offers UV protection and slightly darkens the wood to a shade similar to it having been wetted by rain. However, I thought this added pleasing and even colour. The natural oil looks a bit like café latte, smells of linseed oil, but does foam slightly on agitation, although this is not a problem. The smell is only slight but it does remind me of oiling a cricket bat. It is claimed to be rain proof in about 90 minutes. I didn't test this, but did notice the next day it had left in places, mainly in the grooves, left a slight residue a bit like light brown curds. I assume this is where there was slightly larger amounts of the oil and the residue was left on drying. Many have commented on this, but for me it brushed off readily and any remainder faded or was washed away leaving nothing permanent. However, it does suggest the formulation is not optimal. Personally I didn't notice any real tackiness the next day, and thought the finish was good; quite even, and a slight dull sheen as if it had been oiled, but not at all slippery (no change to grip). Rain water sits on the surface. In terms of coverage, it is claimed to cover 20m2 of grooved decking with two coats, but in my hands I would estimate more like 15-16m2 (and I didn't think I was being particularly liberal in application), so that's about 25% less than Ronseal claim. In all, I am pleased with the finish, found any issues (slight transient residues and less coverage) to be small, and would recommend as a suitable decking choice. However, I guess time will tell whether the protective properties are good! Last, and not least, the current price on this site is good compared with local DIY stores.
C**R
Great product. Great price
Wonderful product, went on very well with a beautiful finish. I did my homework and this was the best price to buy this product from
M**S
Absolutely brilliant
I've used a few brands of decking oil but always find myself going back to Ronseal. It's now dry enough to jetwash the decking, remove the moss and slippery stuff, and give it a good coating. It's 10 years old, but it gets treatment every year. This year, I did this with a ProDec Decking Brush, which cut the time of the job in half. Very recommended - washed clean for next year, I will get many years out of it. This oil really stands out because a) good coverage b) you can really work it into the wood c) the colour. The coverage and absorption are excellent; I worked it in with the decking brush; it did not need a lot of effort, just back and forth over each plank. No rush, no drama, work it in. This is really important, if like me, you only want to do one coat, so make it a good one. The oil was starting to cure after about 10 minutes (it was about 21c outside), and you could still work it in if needed. The colour is very good, the wood is patina'ed by its natural pine, knots, and years of various stain oils and age. The jetwash got a lot of the older 'oil' off, which cracked and flaked (!). I was left with a mishmash of light, dark and everything in between. I put this stuff on and thought, "Oh, orange, great..." Something to jetwash off next year. What happens is that it cures into a very nice russet and really lifts the grain out of the wood. The knotty darks comes through, and there is definitely a grain to each plank. You are left with a really nice natural look to the wood. I bought 2.5L, and for 20m2 of decking, I got through about 1.5L, including rails, top rails and posts, so not bad (yes, I make that one coat count). We had a little drizzle the morning after - it's definitely got very good repellent properties. I will definitely use this again, it is very easy to work with, it looks great, and its definitely some of Ronseal's best. Does exactly what it says on the tin.
A**E
Quality, lasting protection.
Delivery good, no dent in tin ,or spill good. It's worth getting the ultimate protection 👍
W**.
Good
I bought the natural colour and thought it would be clear; had a very light yellow/cream tint to it. First time I’ve painted a new deck so didn’t apply enough the first coat so applied more second coat. Easy to apply with long handled brush. I enjoyed using it and was super easy to apply.
P**E
Darker in colour but applied like a dream!
I used this on my balcony decking - it was green and worn out and tired. I didn’t strip it first, I just used a tough bristle brush and soapy water to scrape off the dirt and green stuff, then wiped the boards down. Once dry, I did a first layer, brushing it on, and 4 hours later a second layer. It was between 7 and 11 degrees celsius so not as warm as it should be ideally (warm and above 10 degrees) and it took about 4 days to properly dry. I’d say definitely do this on a warm day if you can, it was 10 degrees but feels like 4 when I did the first layer and I think it should have been warmer out. It’s a lot darker in colour than labelled, teak is a lighter paler wood but this gave my boards a slightly more mahogany look - which I’m okay with, but it’s definitely redder and deeper in colour than I was expecting. It painted on like a dream, I used a medium wallpaper paste brush and it went on really nicely. It was slightly more liquid than I hoped so I worked quickly and had to look out for drips. I applied it with less care because it was frigging cold and the stains wiped away easily on the metal poles at the sides so non porous surfaces were really easy to clean. I ummed and ahhed for ages about this, as I didn’t want anything too heavy for my balcony - I’m also on the third floor and didn’t want any damage to the flat below me. This oil was exactly what I needed. I’ll try and update in a few months to see how it weathers, but so far so good and my balcony looks stunning. Really happy.
M**O
Ottimo prodotto.
Di facile applicazione, ha rinnovato una piattaforma in legno esterna come nuova. Per ora resiste senza problemi all'esposizione solare e alla pioggia.
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