Browse store

Sika Waterproofer 5Ltr (34457)

5Ltr. Liquid additive which prevents transmission of water through sand or cement renders, screeds and mortar.

  • Container:
  • Water-Resistant
  • Colour:
  • Model No:

More Info

£39.99INC VAT (£8.00/Ltr)
Was £44.99 Save £5.00 (11%)

Add to basket for...

Rated 4.6 out of 5 by 5 reviewers.
  • 2016-06-29 T11:49:29.883-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_5, tr_5
  • loc_en_US, sid_34457, prod, sort_default

Add to saved list...

Save
Rated 4 out of 5 by sika waterproofing Used as a waterproofing agent in a render mix. Followed instructions for mixing and it did exactly as stated in the specification. 1 Apr 2016
Rated 5 out of 5 by Keeps water out There is little else to say, mix it right and it keeps the water out, just on the prices side but does the job 1 Jan 2016
Rated 4 out of 5 by Mixed for a pond wall render Well this is a partial review as all I've done is apply the coat of render to the inside wall of the pond. Good points so far - the light yellow colour stays in the mixed water solution 1:10 ratio. but does not colour the mix of 1 cement to 2.5 rendering sharp sand. These ratios seem hard to find on directly on the web. It mixed in fine and looked to be quite workable for at least 2 hours, i'd finished by then. I used about a 1/3 of the 5 litre bottle for two bags of rendering sand and just under a bag of cement. so perhaps (my guess) around a square meter of wall for each litre used. Will it do what its meant to? only time will tell. but its well recommended elsewhere and specked for the job. 11 Mar 2015
Rated 5 out of 5 by Perfect product High quality product from sika, Follow the instructions exactly and leave in the mixer until the right consistency is reached. Blocks water forever! very strong when used with stainless expamet. 14 Apr 2014
  • 2016-06-29 T11:49:29.883-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_5, tr_5
  • loc_en_US, sid_34457, prod, sort_default
Page : 2 next>
5 Questions  5 Answers

Screwfix Q&A

Ask your questions. Share your answers.

 
 
« Back
 
 
Search:
Sort by:
20 Jun 2016
Customer avatar
by
Bangor
Read all my Q&A
, DIY
0points
0out of 0found this question helpful.
Was this helpful?Yes0No0

Answers

Answer: 
No it doesn't have a plasticiser in it as such and you are correct that no other building chemicals should be added to it but the chemical action does reduce the water needed producing a nice render or screed mix.
22 Jun 2016
0points
0of 0found this answer helpful.
Was this helpful?Yes0No0
20 Jun 2016
Customer avatar
by
Birmingham
Read all my Q&A
, Landscape/Garden Maintenance
0points
0out of 0found this question helpful.
Was this helpful?Yes0No0

Answers

Answer: 
Sika® 1 liquid admixture is diluted 1:10 by volume with clean water to form a gauging solution.
When its being used as a general waterproofer coverage is approximately 0.75 Litres per 25Kg of cement.
22 Jun 2016
0points
0of 0found this answer helpful.
Was this helpful?Yes0No0
Can i use that in porch floor before i put new tiles( if this is important porch is heated and insluated walls and roof) ? As im about the remove old tiles and put some PVA and i was thinking to use that Sika waterproofer on PVA before putting new tiles.
10 Jun 2016
Customer avatar
by
London
Read all my Q&A
, DIY
0points
0out of 0found this question helpful.
Was this helpful?Yes0No0

Answers

Answer: 
Is probably best to use one of the specific 'damp proof membranes' for floors and also unfortunately PVA is not generally recommended areas which may be exposed to damp.
13 Jun 2016
0points
0of 0found this answer helpful.
Was this helpful?Yes0No0
 
1 Answer

Use as a DPM?

I have used SIKA SBR+ bonding agent diluted and applied to an existing concrete floor which had a bitumen coating that has been partially mechanically removed. I used this mixture to bond the bitumen and concrete. Could i apply a non diluted coating of SBR+ to provide a damp proof membrane? If not can i use the SIKA WATERPROOFER as a DPM or can you recommend something else?
22 Feb 2016
Customer avatar
by
IPSWICH
Read all my Q&A
, DIY
0points
0out of 0found this question helpful.
Was this helpful?Yes0No0

Answers

Answer: 
Unfortunately neither SBR or Sika 1 Waterproofer will create a DPM applied by themselves.
They can be used in sand & cement mixes create water resisting or waterproof floor screeds but this needs to be applied at thickness so its probably best to used a specific DPM coating. They are generally applied at a few mm thick and dry very rapidly allowing the quick application of subsequent floor coverings. Plus they will also resist any vapour pressure. The type of DPM will depend upon the intended floor covering as for example natural wooden flooring is very sensitive to moisture whereas ceramic tiles are less so . It is also probably best to totally remove the bitumen coating as any DPM will probably struggle to bond to it.
24 Feb 2016
0points
0of 0found this answer helpful.
Was this helpful?Yes0No0
19 Nov 2015
Customer avatar
by
Yeovil
Read all my Q&A
, Electrician
+2points
2out of 2found this question helpful.
Was this helpful?Yes2No0

Answers

Answer: 
Yes it can be painting provided its dry and fully cured. Apply paint as recommended by the paint manufacturer and trial in a small area first to ensure compatibility but the cured mortar or render will not react differently with Sika 1 added as an admix.
20 Nov 2015
0points
0of 0found this answer helpful.
Was this helpful?Yes0No0
1 of 1
  • 2016-06-29 T11:45:33.131-05:00
  • bvseo_lps, prod_bvqa, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasquestionsanswers
  • loc_en_US, sid_34457, prod, sort_default
1 of 1
Specification
Brand Sika
Pack Size 1
Pieces in Pack/Case 1
Product Type Waterproofer
Resistant Type Water-Resistant
Sealant Adhesive Volume 5 Ltr
Total Product Weight 5.33 kg

W x D x H: x x mm. Weight: 5.33kg. year manufacturer's guarantee.

Downloads

Safety Data Sheet (COSHH)