• UltraFlex 15kg

*If ordered by 5pm weekdays, the product will be dispatched the same day and shipped with APC Overnight for next day delivery. Will be trackable on  APC Overnight with the tracking number supplied*

Product description:


Ultraflex is a one-part high performance waterproofing liquid for use on new and existing flat roofs, walkways, balconies and gutters. Unlike traditional GRP, once Ultraflex is applied it is instantly rain resistant which allows it to be used all year round. Apply straight out of the can.

  • BBA certified for life in excess of 25 years

  • NHBC and Green Roof Approval

  • One can provides up to 10m² coverage (but base it on 8m² to get a more accurate quote)

  • Ultraflex can be used on new or existing roofs, walkways, balconies, gutters etc

  • Ready to use straight out of the tin, application with solvent resistant roller

  • Can be with Ultraflex matting to ensure easy ‘wet on wet’ application

  • Can be used all year round – moisture curing

  • Fully trafficable when cured

  • Instantly rain resistant after application

  • Once installed, forms a seamless membrane

  • Excellent adhesion to different substrates: plywood, bitumen membranes, asphalt, metals, brick, concrete, wood etc


The topcoat must be included in all systems to achieve:

With UNTRAINED contractors:

15 YEARS: Ultraflex and Ultratop at the recommended coverage

With TRAINED contractors:

20 YEARS: Ultraflex and Ultratop at the recommended coverage

25 YEARS: Ultraflex and Ultratop at the recommended coverage. Extra layer required 0.5kg additional Ultraflex




Specific gravity (kg/m³)

1.320 ~ 1.420

DIN 53 217

Viscosity at 23ºC

2.650 cps

ASTM D2196-86

Dry extract


EN 1768

Flash Point (ºC)



Ashes at 450ºC % weight

42 ~ 47%

EN 1879


2ºC and rising and not exceeding 30ºC

Hardness Shore A at 23º

C > 75

Tensile strength

6 MPa

Dry time

2-8 hours. Fully cured 24 hours

Overcoat time

±5 ~ ±48 hours

Tensile strength

7 MPa



Water vapour resistance


Concrete adherence

>2 MPa

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UltraFlex 15kg

  • Product Code:Ultra15kg
  • Availability:40
  • £115.00

  • Ex Tax:£95.83

Tags: Liquid Coating