Browse store

Isoflex Liquid Rubber Black 4.25Ltr (29518)

4.25Ltr. Universally adherent filler for durable repair and protection. Five times more flexible than bitumen. Black.

  • Primer Required
  • Suitable for Roofing
  • Long Lasting
  • Model No: 34894X
  • High Odour
  • UV & Weather-Resistant

More Info

£39.99INC VAT (£9.41/Ltr)

Add to basket for...

Not available for delivery
Isoflex Liquid Rubber Black 4.25Ltr is rated 4.9 out of 5 by 25.
  • y_2017, m_5, d_23, h_13
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_25
  • loc_en_GB, sid_29518, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix

Add to saved list...

Save
Rated 5 out of 5 by from EXPENSIVE, BUT THE BEST. I tried some cheaper products just a waste of money and time,after reading the reviews about ISOFLEX liquid rubber I thought I give it a try,well it certainly looks like a good strong stuff,sticks to everything and anything.I refelted my shed bought 1 tin of 4.25L just to seal around the edges and joints this stuff looks so good I realy should have just got this stuff in the first place and painted the whole roof with it without refelting but thats too late. I have now decided to prolong the new felt life by painting it all over with ISOFLEX and hope it lasts as long as it says on the tin,yes its expensive stuff but I think its worth it in the long run, if it lasts as long as they say and SCREW FIX is cheaper than all the other big names,
Date published: 2016-10-17
Rated 5 out of 5 by from isoflex liquid rubber roof looks awesome after application,for me i got saucepan big enough for 4.25 liter tin,then put some boiling water into saucepan then unopened tin into water up to half way up tin,left tin for 5 mins then took tin out and gave it a shake then put tin back in saucepan for another 10 mins,then gave it another shake then when opened tin gave it a good stir,also stir tin during application,2 tins were enough for me on flat a roof 3 meter by 2 and a half meter with a bit left over , i would recommend to use primer first and just pour and roll out, just use cheap roller and brush,i applied isoflex when temp outside was about 20 degrees
Date published: 2016-09-24
Rated 5 out of 5 by from Impressive product Have used this product on several occasions and I have found it very impressive. It solved aproblem with a leaking flat roof and provided a very durable coating on a balcony floor.
Date published: 2016-08-27
Rated 5 out of 5 by from rubbery goo2 Great stuff. Repaired a badly holed flat roof and sealed it, Easy (but messy) to apply. Immersing the unopened can in hot water for a bit makes if easier. Also fill holes with bitumen and let it set first. 2 coats and no sign of leaks. Looks like a new (shiny) rubber roof.
Date published: 2016-08-08
  • y_2017, m_5, d_23, h_13
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_25
  • loc_en_GB, sid_29518, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix

Moss

I have a problem with moss growing on one side of hut I have stripped all the moss of and now want to coat with isoflex rubber Will this stop moss growing back on my shed roof thanks
Asked by: Screwiton
Thanks for your question. Isoflex does not contain any additives to inhibit the growth of moss etc, it may help as the roof will definitely remain drier following the application of Isoflex but it would not be possible to guarantee moss growth would not re-occur in the future.
Answered by: Isoflex Product Support
Date published: 2017-05-02

What product can I use to reduce heat gain?

As isoflex is black and will induce heat gain, what topcoat reflective paint product would be suitable to reduce the heat buildup?
Asked by: Guest1234567
I am sorry we can not advise that this product is overcoated. We would not anticipate the heat absorption to be any greater than a standard felt.
Answered by: Isoflex Product Support
Date published: 2017-04-12

Can this be painted over silicone and rubber? And of so, would I need a primer?

Asked by: Waasfiend
Thanks for your question. Application to silicone isn't possible however the Isoflex should adhere well to most rubberized surfaces, provided the surface is sound priming isn't necessary.
Answered by: Isoflex Product Support
Date published: 2017-03-22

can it be painted over Acrypol ?

I have an old felt garage roof , I have patched it up in places with Acrypol . I am now thinking of coating the whole roof with liquid rubber . Wil the liquid rubber be ok covering the Acrypol patches, Wil it stick ok ?
Asked by: Toby3121
Thanks for your question. Yes it will be fine to apply Isoflex, it will adhere to the Acrypol.
Answered by: Isoflex Product Support
Date published: 2017-05-13

is isoflex liquid rubber suitable for lead roofs ?

Asked by: hazelby
Thanks for your question. Yes that would be fine, just ensure the roof is clean and ideally the use of Isoflex Special primer would be advisable to optimise adhesion.
Answered by: Isoflex Product Support
Date published: 2017-05-19
  • y_2017, m_5, d_23, h_1CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_23
  • loc_en_GB, sid_29518, prod, sort_[SortEntry(order=LOCALE, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
Specification
Brand Isoflex
Coating & Finishes Drying Time First coat touch dry in 12-24 hours
Colour Black
Manufacturer Guarantee 1 Year Guarantee
Model No 34894X
Pack Size 1
Pieces in Pack/Case 1
Pieces in Pack/Case 1
Product Type Liquid Rubber
Resistant Type UV & Weather-Resistant
Suitable Application Suitable for Roofing
Total Product Weight 4.6 kg
Volume 4.25 Ltr

Curing time: First coat touch dry in 12-24 hours. Coverage: 1sqm per litre.

Downloads

Safety Data Sheet (COSHH)