EpiMax 340WVB – Water Based Epoxy Membrane

EpiMax 340 WVB Water Based Epoxy Membrane is a water based epoxy coating which provides a low water vapour transmission membrane for rigid cementitious surfaces in building and construction projects. It can also be used as a barrier coating over new or damp concrete and a waterproofing membrane to prevent water seepage or dampness penetration. Typically it is applied by roller or airless spray.

Advantages

• Hazmat free/non flammable
• Water based – odourless & food safe
• Convenient mix ratio
• Negligible odour and toxicity
• Fast installation – roller or spray
• Excellent adhesion to prepared inorganic surfaces

Typical applications

• In situ concrete
• Brick, block and stone work
• Retaining walls
• Compressed sheet systems
• Pre-cast and tilt up panels
• Moisture barrier on damp walls/floors

Typical properties

• Shelf life: 12 months
• Volume solids: 40%
• Mix ratio: 1 volume Activator : 1 volume Base
• Work time: 2 hours at 25ºC • Recoating window: 4 – 6 hours at 25ºC (depends on air flow)
• Full cure: 7 days at 25ºC
• Water vapour transmission: 11.3 g/m2/24hrs
• VOC: <10.0 g/ltr

Estimating data
20 ltr EpiMax 340 WVB Water Based Epoxy Membrane = 60m2

General surface preparation

Concrete should be at least 28 days old. Ensure the substrate is clean, dry and free of additives, curing agents, oils, etc.
Prepare the sub-floor by professional diamond grinding to expose firmly adhered aggregate. All surfaces must be structurally sound and
existing coatings, adhesives, efflorescence should be removed. Fill gaps with EpiMax 575 Structural Adhesive System first.

General application comments

Ensure relative humidity is <85%. The hardening mechanism is two stage – firstly the contained water evaporates and then the chemical
hardening takes place. Consistent air flow will assist the water evaporation stage. Review the area in advance so that a fixed volume of
mixed material can be applied over a fixed area to ensure correct application rate. Select a slow speed (400 rpm) mechanical mixer and
ensure thorough mixing.

Packaging

EpiMax 340 WVB is available in 20 litre packs (includes Activator and Base). It is pre-packed in correct proportions for use.

For comprehensive details, refer to the Product Data Sheet.

Contact Sydney Industrial Coatings for any inquiries.