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Product is not suitable for use on wooden substrates

Thompsons Water Seal Clear 5Ltr (52043)

Provides superb weather protection for bricks, mortar and concrete. Forms a transparent, waterproof barrier.

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£19.99INC VAT (£4.00/Ltr)

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Thompsons Water Seal Clear 5Ltr is rated 4.3 out of 5 by 41.
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Rated 5 out of 5 by from Excellent Had water coming through the wall, applied the product and it really stopped. Absolutely excellent.
Date published: 2016-12-03
Rated 5 out of 5 by from Good product Although only time will tell how waterproof this leaves the roof and cement that's been applied, it seems to be fine so far. It was easy to apply and the brushes were easily cleaned off afterwards, leaving little or no sign of the product having stuck to the bristles. It's not left a stain on the concrete either, so I am satisfied that this is a recommendable product. I think it's pretty good stuff overall.
Date published: 2016-10-25
Rated 5 out of 5 by from Very Good Time will tell how long lived the waterproofing effect will be but seems to have worked brilliantly without any noticeable difference in the appearance of the mortar.
Date published: 2016-10-22
Rated 5 out of 5 by from Water proof walls! I used a garden sprayer for applying this. I sprayed the whole of my extension as it was letting damp seep in through the brickwork and staining the internal walls. I used the no nonsense version which is a bit better for the fact that it is a, clear ans b, you can use it on wood. Not that i needed any of those benefits. I asked a friend to pour some water over the bricks and it rolled off like a perfectly waxed car! Amazing stuff! I Will revapply every year, well worth it.
Date published: 2016-07-28
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40 Questions  40 Answers

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13 Nov 2016
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Hemyock
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Answer: 
Thank you for your enquiry.
Thompsons Water Seal would not be suitable for your needs. We do have a product which would be more appropriate though, Thompson's One Coat Patio and Block paving Seal will create a seal over the surface that will reduce dirt build up.
14 Nov 2016
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7 Nov 2016
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GATESHEAD
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Answer: 
Thank you for your enquiry.
No I am sorry to say if you use this product the render will not adhere effectively.
14 Nov 2016
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Can Thompsons water seal clear be used on internal brick wall?
3 Nov 2016
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Surrey
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Answer: 
Thanks for your question, this isn't something we recommend, Water Seal is purely a water repellent and doesn't have properties (anti-dusting, stain resistance etc) that may be desirable for an interior wall.
3 Nov 2016
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A retaining garden wall suffers from efflorescence. I'm thinking of cleaning the wall using a combination of high pressure water spray and acid cleaner. After cleaning, I'd like to use a silicone sealer. Will this stop future staining?
1 Nov 2016
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Anonymous,
Beverley
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Answer: 
Thank you for your question. The use of Thompson's Water Seal on retaining walls isn't something we recommend. Water Seal forms a water repellent coating on the surface of the masonry it unfortunately therefore won't help with your problem which is likely to be caused by moisture from the retained garden/soil.
2 Nov 2016
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21 Oct 2016
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BRISTOL
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Answer: 
Thanks for your question. This could still be OK, check the wall the next few times it rains, if you see water beading on the surface then all is well if not you may have to re-apply during a suitable dry period. Just bear in mind it can take a few days for beading to start to be visible.
27 Oct 2016
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Specification
Brand Thompsons
Colour Clear
Manufacturer Guarantee 1 Year Guarantee
Pack Size 1
Pieces in Pack/Case 1
Product Type Water Seal
Sealant Adhesive Volume 5 Ltr
Total Product Weight 5 kg

Curing time: . Coverage: .

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Safety Data Sheet (COSHH)