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LIQUID GAS BARRIER
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GP<sup>®</sup> EPOXY BARRIER TDS
GP® EPOXY BARRIER TDS
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JUTA

GP EPOXY BARRIER

LIQUID GAS BARRIER
9

GP® EPOXY BARRIER is a low-VOC, solvent-free, Novolac-based epoxy coating formulated for professional use. It is supplied as a two-pack system and can be applied by trowel (in 1 coat), or brush/roller (in 2 coats). It cures to give an ultra-chemically resistant, extremely durable and fully waterproof coating. This product can be specified with confidence into the most demanding of industrial applications and can be applied to concrete, masonry or metal.

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Product Benefits

  • Solvent-free
  • Seamless finish
  • Imparts toughness and surface level abrasion-resistance
  • Excellent tensile strength
  • One or two coat application
  • Low permeability
  • Quick return to service (as early as 24 hours)
  • High chemical resistance
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GP<sup>®</sup> EPOXY BARRIER TDS
GP® EPOXY BARRIER TDS
Download
NSAI
NSAI
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Product Description

GP® EPOXY BARRIER is ideally suited to inhibit vapour transmissions, liquid water ingress and to simultaneously provide chemical protection against brine, salts, acids, alkalis, hydrocarbon solvents, vegetable oils and more. A non-exhaustive list of chemical resistance is provided within this Data Sheet, for specific chemicals, contact the Technical department for advice.

Dependent on need, the product can be blinded with aggregate to provide a slip resistant surface or a key for rendering etc. The product can also be paired with an epoxy primer for applications that require enhanced flexibility.

Uses:

  • Domestic, commercial & industrial floors
  • Ground floor DPM
  • Wet rooms
  • Subterranean structures
  • Basements
  • Tank bunding (please verify compatibility with Technical Department prior to specification)
  • Plant rooms
  • Marine facilities
  • Swimming pools/spas.
GP<sup>®</sup> EPOXY BARRIER
Characteristics Specification
Density at 20˚C~1.15g/cm3 mixed
Appearance (Base + Hardener)Mobile, thixotropic liquid. Coloured as per supply.
Coverage1 coat application: 2.8m2/kg 2 coat application: 1.4m2/kg per coat
Characteristics Test MethodSpecification
Compressive StrengthBS EN 12190Class III 61.4 MPa
Adhesion StrengthBS EN 154210.1 MPa
Liquid Water Transmission RateBS EN 1062-3Class III (Low) 0.050 kg/m2.h0.5
Water Vapour Transmission RateBS EN 1062-1Class III (Low) 1.85g/m2/day
Non-Volatile Contents> 99.90%
Dry Film Thickness (DFT)1 coat = 250 microns approx. 2 coats = 500 micron approx.
Pot Life at 20˚CAv. 75 mins
Tack free Cure*6-24 hours (Drying time is highly dependent on temperature/humidity)
Full Cure Time (Full Chemical Resistance)7 Days
Application Temperature range+5°C to +35°C
Flash pointNon-flammable

*A second coat can be applied as soon as the first coat is tack-free

View Data Sheet

Application

Over the prepared surface, apply GP® EPOXY BARRIER in one or two coats. For a one coat application, in order to achieve the required coating thickness it is necessary to use a trowel, contact the Technical Department for specific application details. Two (thinner) coats are recommended for ease of application and these coats can be applied by brush or roller (medium pile). The recommended application rate is 3.5m²/kg. A 5kg pack will cover approx. 8.75m2. A 20kg pack will cover approx. 35m2.

At room temperature GP® EPOXY BARRIER will cure in 6-8 hours. Allow longer cure times at lower temperatures. The second coat must be applied within 3 days of the first coat. If the coating is tacky to the touch, wait until fully dry before over-coating.

Where specified into walkways or regularly pedestrian trafficked areas a second coat can be blinded to provide slip resistance and additional grip. Apply the system as described above, for the second coat blind with a fine/medium aggregate (0.25 – 0.5mm) at 1m2/kg.

Where specified behind screeds, render or tiles it is also recommended the second coat is blinded to provide a mechanical key. Apply the system as described above, for the second coat blind with a coarse Aggregate (1mm) at 1m2/kg.

In all applications, full chemical resistance of the system will require a 7-day period following the last coat.

Cleaning Tools

Use Xylene Thinners or a cleaning product specifically marketed for use with epoxy resins.

Limitations

  • Concrete must be a minimum of 28 days old prior to application of this coating
  • Temperature (low) and humidity (high) will lengthen quoted curing times
  • Strong acids such as Sulfuric/Nitric will discolour the coating. This will not affect underlying performance, washing after exposure may remove some staining
  • If the product is being used to provide a decorative surface finish it should be applied by a competent operative familiar with the application of epoxy coatings to decorative standards.
    • Ensuring that the product is applied at an even layer of thickness
    • Blending in of brushed and rollered areas
    • Verifying that all product used is from the same batch

Regulatory

UKCA Marked (compliant to EN 1504-2:2004: Products and systems for the protection and repair of concrete structures).

Class 1 (BS 476-7:1997: Fire tests on building materials and structures).

NBS: Clause J30 10, 130 – Liquid Applied Damp Proofing.

Type A Barrier Protection in Accordance with BS8102(2009).

NBS: Clause J31 – Liquid Applied Waterproof Roof Coatings.

For Type A structures (BS 8102: 2009), the product can provide the protection level for Grades 1, 2 & 3 basements.

All components are REACH (Reg. (EC) No 1907/2006) registered. The product does not contain any Substances of Very High Concern (SVHC).

Toxicity and Safety

Product is classified as hazardous according to the CLP Regulation (Reg. (EC) No 1272/2008). Refer to the Product Safety Data Sheet for recommended safety precautions. It is recommend the end user wear safety glasses, protective gloves and arms/legs are covered during application. If working in enclosed areas, it is recommend to keep doors and windows open during application to help with natural ventilation.

GP<sup>®</sup> EPOXY BARRIER

Preparation

Surfaces should be smooth, clean, dry (free from surface water), sound and free from frost, oils, grease and other contamination. Any surface defects (holes, cracks etc.) should be filled with a suitable filler. For optimum results, grit blasting is recommended prior to application.

For masonry applications, joints should be flush pointed with a cementitious filler prior to application. Where existing surfaces are very rough, a sand/cement render coat may be required.

For metal applications, prepare the surface by wire brushing or sand blasting. Treat the surface with an anti-corrosive primer for best results.
Epoxy-based steel primer primers are compatible.

For concrete applications, surfaces should be smooth. Mildly tamped, brushed and floated surfaces are also acceptable.

The minimum ambient temperature for application is 5°C, do not apply the product at temperatures below this as curing will be compromised. Ensure reasonable ventilation to obtain best cure.

Priming

For routine applications a primer is not required. Priming is necessary where specified into applications with anticipated differential movement, substrate movement or where the substrate has appreciable surface defects that need to be bridged, in those applications Proflex Primer (a flexible epoxy primer) shall be applied in a single coat before overcoating with this product.

Mixing

This is a 2-pack system, the Part A and Part B components must be thoroughly mixed prior to use.

Stir the Part A component (larger tin) for a minimum of 2 minutes, add the full measure of the Part B component (smaller tin) to the Part A tin and continue to stir for a further 2 minutes until uniform in colour. It is advised to stir using a slow speed high torque drill fitted with a paddle mixer attachment for best results. Note that all mixed material must be used immediately and cannot be stored, it will cure hard in the tin if unapplied once mixed.

The Product has a 12-month shelf life subject to storing in a cool, dry, well-ventilated area. Keep containers tightly closed. Store in the original manufacturer supplied containers. Protect from frost and direct sunlight. Product cannot be resealed once opened, it must be used when first opened.

Pack Size Availability

5kg and 20kg. Other bespoke pack sizes are available on request.

CE Mark
UKCA Logo
BBA Certificate 20 5728
BBA Certificate 20/5728
BBA Certificate 18 5581
BBA Certificate 18/5881
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Site Investigation
Site Investigation
Site Investigation Reports Monitoring Results. We review these reports and advise routes for compliance.
System Design
System Design
Full Ground Gas Protection System Design available.
Specification
Specification
Wide library of standard details with site specific details on request.
Installation
Installation
All our installers are certified NVQ Level 2 qualified installation contractors.
Validation
Validation
We ensure your project complies with the relevant building regulations.

Ground Gas Standards 

There are many different standards and guidance documents that detail how to understand the risk of ground contamination, and design solutions to mitigate these risks. The different documents relate to different ground contamination. Below are some of the key documents to be aware of and refer to:

BS 8485:2015+A1:2019 – Codes of practice for the design of protective measures for methane and carbon dioxide ground gases for new buildings.

  • Ground gases typically found near landfill sites, but can occur from other sources
  • Encourages the use of qualified installers
  • Validation to Ciria C735 is a requirement
  • Additional influences on the system should be considered, such as the hydrostatic conditions, and the likelihood of the source contaminant being in direct contact with the protective measures proposed
GP<sup>®</sup> EPOXY BARRIER

BRE 211:2015 – Guidance on protective measures for new buildings. (RADON)

  • Naturally occurring ground gas. Larger concentrations in the South-West of UK
  • Minimum recommendation is a membrane of 300 micrometre (1200 gauge) polyethylene sheet or equivalent
  • It must be installed with considerable care and protected once installed
  • Taped laps are required
GP<sup>®</sup> EPOXY BARRIER

CIRIA C748:2014 – Guidance on the use of plastic membranes as VOC vapour barriers

CIRIA C682:2009 – VOC Handbook

  • Risk-based approach
  • No quantifiable limits on material performance
  • Testing to ISO 15105-2 and EN 14414/EN 14415
  • 9 main VOC types are tested for
  • Welded laps are required as most tapes are made from bitumen/butyl and are affected by VOCs
GP<sup>®</sup> EPOXY BARRIER

CIRIA C735:2014 – Good practice on testing and verification of protection systems to buildings from hazardous gases

  • Good practice on testing and verification of protection systems to buildings from hazardous gases
  • Check design and detailing is in accordance with site requirements
  • Checks the competency of the installer (NVQ LEVEL 2 minimum)
  • Test integrity of the membrane/barrier system
  • Visual inspection
  • Written report on inspection/testing and sign-off

BS8102:2009 – Code of practice for protection of below ground structures against water from the ground

GP<sup>®</sup> EPOXY BARRIER

JUTA Solutions & Applications

Our gas protection membranes suit a variety of applications and situations, with our TITAN® range offering not only gas protection but also having superior waterproofing and invasive weed control qualities.

BRE 211 NHBC (Amber 1) BS8485:2015 + A1 2019 / NHBC (Amber 2) C748 C748 BS8102:2009 RPS178 C753 BBA Agreement Certificate
Radon Bulk Ground Gasses Cardbon Dioxide and Methane VOC Vapour Permeation Hydrocarbons Immersions TYPE-A Bonded Waterproofing Invasive Weed Control SuDs Impermeable Membrane
GP®1
GP®2
GP®4
GP®5
GP®H
GP®L
GP® TITANFLEX
GP® TITANBOND
GP® TITANTANK
GP® LIQUID BARRIER
GP®H 0.6mm

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Get In Touch With The Experts

If you feel first class service, premium products direct from source, and bespoke solutions are right for you then don't hesitate to contact our team today on 01772 754177 or email us at [email protected]

Contact Us
01772 754177 // [email protected]
Melton Grove Works, Blackpool Road, Lytham, FY8 5PL