Sika Waterproof Coating Grey 5kg (83502)

£ 21.99INC VAT

Add to basket for...

Not available for delivery

Sika Waterproof Coating Grey 5kg (83502)

Cement based coating for preventing water and damp penetration in walls and floors.

  • Waterproof
  • For Interior & Exterior Use
  • Ideal for Use in Basements/Cellars but may also be Used as an External Coating for Concrete, Brick, Block & Bonded Renders

More Info

View all: Sika Waterproof Sealants

£21.99INC VAT (£4.40/Kg)

Add to basket for...

Not available for delivery

Add to saved list...

Rated 4 out of 5 by from SIKA Waterproof Coating. Have used before with good results. Make sure you mix it well before applying.
Date published: 2022-11-10
Rated 2 out of 5 by from Not what I was expecting Wanted to waterproof my concrete floor and bought this to 'brush-on'. Having not done this before I got it wrong. It is more like a self leveling compound. I thought it was ready to use straight from the bucket but you need to add water, then it drys too quickly so you can't spread it around properly. May not be a problem with the product, just a warning to others, it's not a finish coating for concrete.
Date published: 2022-10-24
Rated 1 out of 5 by from Must have done something wrong I bought 4 tubs of this stuff to waterproof the inside lower wall and floor of a brick built shed. Cleaned and washed surfaces to be treated. Mixed in exact proportions specified. Applied 2 coats in some areas and 3 in very damp areas. Waited at least 24 hours between coats. Instructions say 30 mins working time - more like 15 mins. What a waste of time, money and effort. Product has started lifting in several areas. Blowed if I'm going to waste more time and money buying more. Will do the job the traditional way with DP membrane and screed!
Date published: 2022-02-28
Rated 5 out of 5 by from Great product Used to seal a damp wall before dry lining. It does take a bit of mixing, you really need a drill on slow, just mix a small amount at a time about 200cl water per kg don’t forget to wet the wall first before using. You need 2 coats and need to wait 24 hrs inbetween. But it worked great and being quite thick will get into small imperfections. Dries grey dot dab adhered well. Going to be using on some smaller damp patch repairs also. Good product
Date published: 2022-02-23
  • y_2022, m_12, d_7, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.34
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_64
  • loc_en_GB, sid_83502, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 8ms

Old stone garage

I've a old stone garage and when it rains the water gets in. Is this the best product to seal it up and waterproof it or what would you recommend?
Asked by: Matt1212
Hi, this does depend on where the water is getting in. Please contact the Technical Services department to discuss your enquiry.
Answered by: Sika Technical
Date published: 2022-11-20

Disposal of waste mixture/liquid

What's the best way to dispose of the wet mixture/leftover liquid? Is it safe to just pour down the drain into a private septic tank?
Asked by: Neilor80
Hi, we would advise you to contact your local authority waste management team for advice on their policy.
Answered by: Sika Technical
Date published: 2022-11-20

Levelling compound

Can i lay levelling compound over this? Or would i have to wait for a period of time before i can? If so how long?
Asked by: Gago
Hi, this can be protected with a levelling screed once it has thoroughly cured.
Answered by: Sika Technical
Date published: 2022-09-13

Timber planter box

Would it seal the interior of a timber planter box
Asked by: burnston
Hi. Unfortunately this is only suitable for mineral substrates and should not be used on wood.
Answered by: Sika Technical
Date published: 2022-05-30

Do you need to use a primer on a block wall first??

Asked by: Damo88
Hi, a primer is not needed. The substrate should be dampened thoroughly with no standing water before application.
Answered by: Sika Technical
Date published: 2021-10-24
  • y_2022, m_12, d_6, h_21CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.34
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_190
  • loc_en_GB, sid_83502, prod, sort_[SortEntry(order=LOCALE, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 8ms
  • bvseo-msg: BV SEO Content for this product did not include verbose reviews.;
Brand Sika
Colour Grey
Label Info 1: Signal Word Danger
Label Info 2: Hazard Statements H315 Causes skin irritation.H318 Causes serious eye damage.H335 May cause respiratory irritation.
Label Info 3: Precautionary Statements P101 If medical advice is needed, have product container or label at hand.P102 Keep out of reach of children.P271 Use only outdoors or in a well-ventilated area.P280 Wear protective gloves/protective clothing/eye protection/face protection.P302 + P352 IF ON SKIN: Wash with plenty of water/…P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.P310 Immediately call a POISON CENTRE/doctor/ …P501 Dispose of contents/container to …
Label Info 5: Hazardous Chemical Content 266-043-4 Cement, portland, chemicals, calcium dihydroxide.
Manufacturer Guarantee 1 Year Guarantee
Pack Size 1
Parent Colour Grey
Pieces in Pack/Case 1
Product Type Waterproof Coating
Resistant Type Waterproof
Volume 5 kg


Safety Data Sheet (COSHH)