Ronseal Wet Rot Wood Hardener 500ml

By Ronseal Product code: 94441 Pack size: Each

Product Details

This no fuss wet rot wood hardener from Ronseal gives interior and exterior wood a new lease of life. Harden wet wood and stop nasty rot from spreading, whether it's your garden furniture or a water damaged window frame. The fluid seeps deep into the wood and sets rock hard, which reinforces decaying parts and provides a solid base for filling.

The hardener dries quickly with a clear finish, and the lid doubles up as a container too, so everything you need is right here. A little goes a long way and one tin should see you through plenty of jobs around the house.

• High performance wet rot wood hardener

• Hardens decaying wood for a solid base when wood filling

• Penetrates deep

• Interior and exterior use

• Only one coat required

• Quick drying - dries in 2 hours

• Sets rock hard with a clear finish

• 500ml

Technical Specification
Brand Ronseal
Colour Clear
Unavailable offshore
Manufacturer ID 32042
Safety Data Sheet click here
Type Wood Filler
Volume (L) 0.5
Pack Size 1
Interior / Exterior Use Exterior
Delivery details

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery – £5.00 or FREE for orders over £25

  • Order before 7pm Monday to Thursday for next business day delivery
  • Order Friday to Sunday before 5pm for Monday delivery
  • Orders placed after Sunday at 5pm will be delivered the following Tuesday
Pre-12pm Delivery – £10.00 to arrive before 12pm on the scheduled days above
Saturday Delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 6pm Friday)
Sunday delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 4pm Saturday)
Times may vary for items being delivered directly from the supplier. For more information, please visit our delivery information page below.
Items over 30kg can only be delivered from Monday to Friday. If ordered before 6pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.
More about Delivery
Click & Collect details

Collection Details

Our opening times are 7am-8pm Monday-Friday, 7am-6pm Saturday and 9-4pm Sunday. Please check your local branch is open on the branch locator page, before you visit.

Once you have placed your order online, we’ll have it ready for you at the branch you have selected in as little as 5 minutes. We will hold your order for 14 days, after which we will automatically generate a refund to the payment type you used to place the order.

Don’t forget your mobile number – Make sure your mobile number is added so that we can text you when your order is ready to collect. Please wait for your text or email before coming to collect your items.

If an item is eligible for Next Business Day Collection in branch, the order must be placed by 7pm Monday to Thursday for collection the next day. Orders placed after 7pm on Thursday, and up to 5pm on Sunday, will be available for collection on Monday. For larger items over 30kg, please allow two business days.

Ronseal Wet Rot Wood Hardener 500ml is rated 4.7 out of 5 by 131.
Rated 1 out of 5 by from Not what it used to be! This used to do what it says on the tin...not any more. I applied it as directed on various sections of fascia board. It used to set hard but this time it left the wood soft and tacky even after being left for at least 24 hours. I think the reason could be a change of formula. When I used a previous tin successfully brush clean up was with cellulose thinners now Ronseal advise white spirit. I have previously worked slightly thinned exterior wood glue into wet rot which was far more successful than this expensive almost useless liquid. For me it proved to be a waste of money.
Date published: 2022-08-03
Rated 4 out of 5 by from use every time.. quick and easy to use... washes out of brushes easy with water.... and does work well.....
Date published: 2022-08-02
Rated 1 out of 5 by from Disappointing - not as I remember it I've used this for years and always been really pleased but the last tin just didn't dry completely. Days after use the tin is still sticky from dribbles as is any wood where the product hadn't completely soaked in. Also for the first time the paint crazed indicating an incompatibility, never had this before. Bad tin, changed formulae? Will we looking for an alternative next time.
Date published: 2022-07-31
Rated 5 out of 5 by from Seems to work well Applies ok and quickly hardened the soft patch of wood rot.
Date published: 2022-07-22
Rated 5 out of 5 by from Does the job I used this to seal my wooden worktop around the sink, after digging out some wood that had rotted, before applying wood filler.
Date published: 2022-04-25
Rated 4 out of 5 by from Wet rot wood hardener This was good on pretty rotten and wet wood. Took a while to harden but now it’s great and I have filled and strengthened the wood.
Date published: 2022-03-21
Rated 4 out of 5 by from Does what it says on the tin Easy to apply, contents will run so wear gloves when applying vertically.
Date published: 2022-03-20
Rated 5 out of 5 by from Reliable product An easy-to-use product which you can paint or pour. It does the job.
Date published: 2022-03-12
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